GCR deployment testing in progress - content type issue still remaining.

.dockerignore

@@ -0,0 +1,5 @@
+**/obj/
+**/bin/
+**/.git/
+**/.vs/
+**/node_modules/

GCR/Dockerfile

@@ -1,98 +1,70 @@
 # ─────────────────────────────────────────────────────────────────────────────
 # Stage 1 — npm install (Tailwind CLI)
-# The .NET SDK stage needs node_modules present before running dotnet publish
+# Uses node:24-alpine for a small image. npm ci is used for reproducible,
-# because the MSBuild Tailwind target calls `npx @tailwindcss/cli` during build.
+# fast installs from the lockfile.
-#
-# We use the official node:24-slim image here.  This means the npm that ships
-# with Node 24 (npm 10.x) is used as-is — we deliberately do NOT run
-# `npm install -g npm@latest` anywhere.  Running a global npm self-upgrade
-# inside a Debian container is a known reliability hazard: npm replaces its
-# own running binaries mid-flight, which can cause EBUSY / ENOENT failures
-# that corrupt the install.  The bundled npm is current enough.
 # ─────────────────────────────────────────────────────────────────────────────
-FROM node:24-slim AS npm-install
+FROM node:24-alpine AS npm-install
 
 WORKDIR /npm
-COPY Htmx.ApiDemo/package.json .
+COPY Htmx.ApiDemo/package.json Htmx.ApiDemo/package-lock.json* ./
-# npm ci requires package-lock.json; if it doesn't exist yet, run
-# `npm install` locally first to generate it, then commit it to the repo.
-COPY Htmx.ApiDemo/package-lock.json* ./
-# ci is preferred over install in CI/Docker contexts: respects package-lock,
-# clean installs, and is faster.
 RUN npm ci
 
 # ─────────────────────────────────────────────────────────────────────────────
 # Stage 2 — AOT publish
-# Uses the full .NET 10 SDK image.  Node/npx must also be present here so the
+# Uses the Alpine SDK image so the binary is linked against musl libc,
-# Tailwind MSBuild target can run.  We install Node 24 from NodeSource using
+# making it compatible with the Alpine runtime image in Stage 3.
-# the official setup script and then immediately install nodejs via apt — no
+#
-# subsequent `npm install -g npm` step, for the same reason as above.
+# Alpine packages are cached via BuildKit mount cache — after the first build
+# `apk add` is near-instant because the package index and downloads are
+# reused from the local cache rather than re-fetched from the network.
 # ─────────────────────────────────────────────────────────────────────────────
-FROM mcr.microsoft.com/dotnet/sdk:10.0 AS publish
+FROM mcr.microsoft.com/dotnet/sdk:10.0-alpine AS publish
 
-# Install Node.js 24 (required by the Tailwind MSBuild target at publish time).
+# Install AOT linker tools and Node.js (for the Tailwind MSBuild target).
-# We download the NodeSource setup script to a file first so we can inspect it
+# --mount=type=cache keeps the apk package cache between builds on this machine.
-# if needed, then run it.  Using `| bash -` directly is convenient but hides
+RUN --mount=type=cache,target=/var/cache/apk \
-# the script from audit — the two-step form is safer in CI/CD contexts.
+    apk add --no-cache clang lld musl-dev build-base nodejs npm
-RUN apt-get update && \
-    apt-get install -y --no-install-recommends curl ca-certificates && \
-    curl -fsSL https://deb.nodesource.com/setup_24.x -o /tmp/nodesource_setup.sh && \
-    bash /tmp/nodesource_setup.sh && \
-    apt-get install -y --no-install-recommends nodejs && \
-    rm /tmp/nodesource_setup.sh && \
-    rm -rf /var/lib/apt/lists/*
-# Intentionally no `npm install -g npm` — see Stage 1 note above.
 
 WORKDIR /src
 
-# Copy solution and project files first so NuGet restore is cached separately
+# Copy project files first — NuGet restore layer is cached until these change.
 COPY Htmx.slnx .
 COPY Htmx.ApiDemo/Htmx.ApiDemo.csproj          Htmx.ApiDemo/
 COPY Htmx.SourceGenerator/Htmx.SourceGenerator.csproj Htmx.SourceGenerator/
 
-RUN dotnet restore Htmx.ApiDemo/Htmx.ApiDemo.csproj
+RUN dotnet restore Htmx.ApiDemo/Htmx.ApiDemo.csproj -r linux-musl-x64
 
-# Bring in the pre-installed node_modules from Stage 1.
+# Bring in pre-installed node_modules from Stage 1.
-# These were installed with `npm ci` on Node 24 — no npm upgrade was performed.
 COPY --from=npm-install /npm/node_modules Htmx.ApiDemo/node_modules
 
 # Copy the rest of the source
 COPY . .
 
-# AOT publish — output goes to /publish
+# AOT publish targeting musl so the binary runs on Alpine.
 RUN dotnet publish Htmx.ApiDemo/Htmx.ApiDemo.csproj \
         -c Release \
+        -r linux-musl-x64 \
         --no-restore \
+        --self-contained true \
         -o /publish
 
 # ─────────────────────────────────────────────────────────────────────────────
-# Stage 3 — Runtime image
+# Stage 3 — Runtime image (~12 MB base vs ~100 MB on Debian)
-# runtime-deps provides the native library dependencies (libc, libssl, libicu)
+# runtime-deps:alpine provides only the native libs the AOT binary needs.
-# that the AOT binary links against at runtime — no .NET runtime needed.
+# No .NET runtime is included — the binary is fully self-contained.
 # ─────────────────────────────────────────────────────────────────────────────
-FROM mcr.microsoft.com/dotnet/runtime-deps:10.0 AS runtime
+FROM mcr.microsoft.com/dotnet/runtime-deps:10.0-alpine AS runtime
-
-# Run as non-root for security hardening (recommended by Cloud Run docs)
-RUN addgroup --system appgroup && adduser --system --ingroup appgroup appuser
 
 WORKDIR /app
-
 COPY --from=publish /publish .
 
-# Ensure the binary is executable
-RUN chmod +x ./Htmx.ApiDemo
-
 # Cloud Run injects PORT (default 8080).
-# ASP.NET Core reads ASPNETCORE_HTTP_PORTS, not PORT directly, so we set it.
+# ASP.NET Core reads ASPNETCORE_HTTP_PORTS directly — no entrypoint script needed.
-# The entrypoint script below maps $PORT → ASPNETCORE_HTTP_PORTS at startup.
+ENV ASPNETCORE_HTTP_PORTS=8080
-COPY GCR/entrypoint.sh /entrypoint.sh
-RUN chmod +x /entrypoint.sh
 
-# Transfer ownership so the app can write temp files if needed
+# Use the built-in non-root user provided by the official .NET Alpine image.
-RUN chown -R appuser:appgroup /app
+USER $APP_UID
-
-USER appuser
 
 EXPOSE 8080
 
-ENTRYPOINT ["/entrypoint.sh"]
+ENTRYPOINT ["./Htmx.ApiDemo"]

GCR/run-all.ps1

@@ -1,11 +1,12 @@
 #Requires -Version 5.1
-Set-StrictMode -Version Latest
-$ErrorActionPreference = 'Stop'
 
 param(
     [switch]$Yes
 )
 
+Set-StrictMode -Version Latest
+$ErrorActionPreference = 'Stop'
+
 $RootDir = Split-Path -Parent $MyInvocation.MyCommand.Path
 $EnvFile = Join-Path $RootDir ".env"
 
@@ -63,7 +64,8 @@ function Test-Login {
     $dockerCfg = if ($env:DOCKER_CONFIG) { Join-Path $env:DOCKER_CONFIG "config.json" } else { Join-Path $HOME ".docker\config.json" }
     $dockerOk = $false
     if (Test-Path $dockerCfg) {
-        $dockerOk = (Select-String -Path $dockerCfg -Pattern "\"$($Cfg['GCP_REGION'])-docker.pkg.dev\"" -SimpleMatch -Quiet)
+        $dockerPattern = "`"$($Cfg['GCP_REGION'])-docker.pkg.dev`""
+        $dockerOk = (Select-String -Path $dockerCfg -Pattern $dockerPattern -SimpleMatch -Quiet)
     }
 
     return (-not [string]::IsNullOrWhiteSpace($activeAccount)) -and
@@ -75,7 +77,7 @@ function Test-Login {
 function Test-ProjectSetup {
     param([hashtable]$Cfg)
 
-    $billingEnabled = (gcloud billing projects describe $Cfg['GCP_PROJECT_ID'] --format="value(billingEnabled)" 2>$null)
+    $billingEnabled = (gcloud billing projects describe $Cfg['GCP_PROJECT_ID'] --format='value(billingEnabled)' 2>$null)
     if ($billingEnabled -ne 'True') { return $false }
 
     try {
@@ -85,7 +87,7 @@ function Test-ProjectSetup {
     }
 
     foreach ($api in @('run.googleapis.com', 'artifactregistry.googleapis.com', 'secretmanager.googleapis.com', 'cloudresourcemanager.googleapis.com')) {
-        $enabled = gcloud services list --enabled --project=$Cfg['GCP_PROJECT_ID'] --format="value(config.name)" 2>$null | Select-String -Pattern "^$([regex]::Escape($api))$"
+        $enabled = gcloud services list --enabled --project=$Cfg['GCP_PROJECT_ID'] --format='value(config.name)' 2>$null | Select-String -Pattern "^$([regex]::Escape($api))$"
         if (-not $enabled) { return $false }
     }
 
@@ -101,14 +103,14 @@ function Test-SecretsSetup {
         return $false
     }
 
-    $serviceAccount = "serviceAccount:$($Cfg['GCP_PROJECT_ID'])@appspot.gserviceaccount.com"
+    # Check if any service account has secretAccessor access (not just @appspot)
-    $binding = gcloud secrets get-iam-policy mongodb-connection-string `
+    $bindings = gcloud secrets get-iam-policy mongodb-connection-string `
         --project=$Cfg['GCP_PROJECT_ID'] `
-        --flatten="bindings[].members" `
+        --flatten='bindings[].members' `
-        --filter="bindings.role=roles/secretmanager.secretAccessor AND bindings.members=$serviceAccount" `
+        --filter='bindings.role=roles/secretmanager.secretAccessor' `
-        --format="value(bindings.members)" 2>$null
+        --format='value(bindings.members)' 2>$null
 
-    return ($binding -match [regex]::Escape($serviceAccount))
+    return (-not [string]::IsNullOrWhiteSpace($bindings))
 }
 
 function Test-DeployDone {

GCR/scripts/01-login.ps1

@@ -28,8 +28,8 @@ foreach ($line in Get-Content $EnvFile) {
     }
 }
 
-$GCP_PROJECT_ID = $config['GCP_PROJECT_ID'] ?? ''
+$GCP_PROJECT_ID = if ($config['GCP_PROJECT_ID']) { $config['GCP_PROJECT_ID'] } else { '' }
-$GCP_REGION     = $config['GCP_REGION']     ?? ''
+$GCP_REGION     = if ($config['GCP_REGION'])     { $config['GCP_REGION'] }     else { '' }
 
 if (-not $GCP_PROJECT_ID) { Write-Error "GCP_PROJECT_ID is not set in .env"; exit 1 }
 if (-not $GCP_REGION)     { Write-Error "GCP_REGION is not set in .env";     exit 1 }
@@ -57,6 +57,6 @@ gcloud auth configure-docker "$GCP_REGION-docker.pkg.dev" --quiet
 
 Write-Host ""
 Write-Host ">>> Login complete. You are now authenticated as:"
-gcloud auth list --filter=status:ACTIVE --format="value(account)"
+gcloud auth list --filter=status:ACTIVE --format='value(account)'
 Write-Host ""
 Write-Host ">>> Next step: run GCR\scripts\02-setup-project.ps1"

GCR/scripts/02-setup-project.ps1

@@ -1,126 +1,71 @@
-# =============================================================================
+#Requires -Version 5.1
-# 02-setup-project.ps1  (Windows)
+param()
-# One-time GCP project setup:
-#   - Links a billing account to the project
-#   - Enables required APIs (Cloud Run, Artifact Registry, Secret Manager)
-#   - Creates an Artifact Registry Docker repository
-#   - Grants the current user the minimum required IAM roles
-#
-# Safe to re-run — most operations are idempotent.
-# Linux users: run GCR/scripts/02-setup-project.sh instead.
-# =============================================================================
-#Requires -Version 5.1
 Set-StrictMode -Version Latest
-$ErrorActionPreference = 'Stop'
+$ErrorActionPreference = 'Continue'
 
 $ScriptDir = Split-Path -Parent $MyInvocation.MyCommand.Path
 $EnvFile   = Join-Path $ScriptDir "..\\.env"
-
+if (-not (Test-Path $EnvFile)) { Write-Error "ERROR: $EnvFile not found."; exit 1 }
-# ── Load .env ─────────────────────────────────────────────────────────────────
-if (-not (Test-Path $EnvFile)) {
-    Write-Error "ERROR: $EnvFile not found.`nCopy GCR\.env.example to GCR\.env and fill in your values first."
-    exit 1
-}
 
 $config = @{}
 foreach ($line in Get-Content $EnvFile) {
     if ($line -match '^\s*$' -or $line -match '^\s*#') { continue }
-    if ($line -match '^([^=]+)=(.*)$') {
+    if ($line -match '^([^=]+)=(.*)$') { $config[$Matches[1].Trim()] = $Matches[2].Trim() }
-        $config[$Matches[1].Trim()] = $Matches[2].Trim()
-    }
 }
 
-$GCP_PROJECT_ID  = $config['GCP_PROJECT_ID']  ?? ''
+$GCP_PROJECT_ID = if ($config['GCP_PROJECT_ID']) { $config['GCP_PROJECT_ID'] } else { '' }
-$GCP_REGION      = $config['GCP_REGION']      ?? ''
+$GCP_REGION     = if ($config['GCP_REGION'])     { $config['GCP_REGION'] }     else { '' }
-$GCP_REPOSITORY  = $config['GCP_REPOSITORY']  ?? ''
+$GCP_REPOSITORY = if ($config['GCP_REPOSITORY']) { $config['GCP_REPOSITORY'] } else { '' }
-
+if (-not $GCP_PROJECT_ID) { Write-Error "GCP_PROJECT_ID not set"; exit 1 }
-if (-not $GCP_PROJECT_ID) { Write-Error "GCP_PROJECT_ID is not set in .env";  exit 1 }
+if (-not $GCP_REGION)     { Write-Error "GCP_REGION not set";     exit 1 }
-if (-not $GCP_REGION)     { Write-Error "GCP_REGION is not set in .env";      exit 1 }
+if (-not $GCP_REPOSITORY) { Write-Error "GCP_REPOSITORY not set"; exit 1 }
-if (-not $GCP_REPOSITORY) { Write-Error "GCP_REPOSITORY is not set in .env";  exit 1 }
 
 Write-Host ">>> Active project: $GCP_PROJECT_ID"
 Write-Host ">>> Region:         $GCP_REGION"
 Write-Host ">>> AR repository:  $GCP_REPOSITORY"
+
 Write-Host ""
-
+Write-Host ">>> Checking billing..."
-# ── Step 1: Link billing account ──────────────────────────────────────────────
+$billing = gcloud billing projects describe $GCP_PROJECT_ID --format='value(billingEnabled)' 2>$null
-Write-Host ">>> Checking billing status..."
+if ($billing -eq 'True') {
-$billingOutput = gcloud billing projects describe $GCP_PROJECT_ID --format="value(billingEnabled)" 2>$null
+    Write-Host "    Billing already enabled."
-$billingEnabled = ($billingOutput -eq "True")
-
-if ($billingEnabled) {
-    Write-Host "    Billing is already enabled — skipping."
 } else {
-    Write-Host ""
+    Write-Host "    Billing NOT enabled. Listing accounts..."
-    Write-Host "    Billing is NOT enabled on this project."
+    gcloud billing accounts list --format='table(name,displayName,open)' 2>$null
-    Write-Host "    Listing available billing accounts..."
+    $BILLING_ACCOUNT_ID = Read-Host "    Enter BILLING_ACCOUNT_ID"
-    Write-Host ""
+    gcloud billing projects link $GCP_PROJECT_ID --billing-account=$BILLING_ACCOUNT_ID 2>$null
-    gcloud billing accounts list --format="table(name,displayName,open)"
+    if ($LASTEXITCODE -ne 0) { Write-Error "Failed to link billing."; exit 1 }
-    Write-Host ""
-    $BILLING_ACCOUNT_ID = Read-Host "    Enter the BILLING_ACCOUNT_ID from the list above (format: XXXXXX-XXXXXX-XXXXXX)"
-    gcloud billing projects link $GCP_PROJECT_ID --billing-account=$BILLING_ACCOUNT_ID
     Write-Host "    Billing linked."
 }
 
-# ── Step 2: Enable required APIs ─────────────────────────────────────────────
 Write-Host ""
-Write-Host ">>> Enabling required Google Cloud APIs (this may take a minute)..."
+Write-Host ">>> Enabling required APIs..."
-gcloud services enable `
+gcloud services enable run.googleapis.com artifactregistry.googleapis.com secretmanager.googleapis.com cloudresourcemanager.googleapis.com --project=$GCP_PROJECT_ID 2>$null
-    run.googleapis.com `
+if ($LASTEXITCODE -ne 0) { Write-Error "Failed to enable APIs."; exit 1 }
-    artifactregistry.googleapis.com `
-    secretmanager.googleapis.com `
-    cloudresourcemanager.googleapis.com `
-    --project=$GCP_PROJECT_ID
 Write-Host "    APIs enabled."
 
-# ── Step 3: Create Artifact Registry Docker repository ───────────────────────
 Write-Host ""
-Write-Host ">>> Creating Artifact Registry repository: $GCP_REPOSITORY ..."
+Write-Host ">>> Checking Artifact Registry repository: $GCP_REPOSITORY ..."
-$repoExists = $false
+gcloud artifacts repositories describe $GCP_REPOSITORY --location=$GCP_REGION --project=$GCP_PROJECT_ID 2>$null | Out-Null
-try {
+if ($LASTEXITCODE -eq 0) {
-    gcloud artifacts repositories describe $GCP_REPOSITORY `
+    Write-Host "    Repository already exists."
-        --location=$GCP_REGION `
-        --project=$GCP_PROJECT_ID 2>$null | Out-Null
-    $repoExists = $true
-} catch { }
-
-if ($repoExists) {
-    Write-Host "    Repository already exists — skipping."
 } else {
-    gcloud artifacts repositories create $GCP_REPOSITORY `
+    Write-Host "    Creating repository..."
-        --repository-format=docker `
+    gcloud artifacts repositories create $GCP_REPOSITORY --repository-format=docker --location=$GCP_REGION --description="Container images for Htmx app" --project=$GCP_PROJECT_ID 2>$null
-        --location=$GCP_REGION `
+    if ($LASTEXITCODE -ne 0) { Write-Error "Failed to create repository."; exit 1 }
-        --description="Container images for Htmx app" `
-        --project=$GCP_PROJECT_ID
     Write-Host "    Repository created."
 }
 
-# ── Step 4: Grant current user the minimum required IAM roles ─────────────────
+$CURRENT_USER = (gcloud config get-value account 2>$null).Trim()
-$CURRENT_USER = (gcloud config get-value account).Trim()
 Write-Host ""
 Write-Host ">>> Granting IAM roles to $CURRENT_USER ..."
-
+foreach ($role in @("roles/run.developer","roles/artifactregistry.writer","roles/iam.serviceAccountUser","roles/secretmanager.admin","roles/secretmanager.secretAccessor","roles/secretmanager.secretVersionAdder")) {
-foreach ($role in @(
+    Write-Host "    $role"
-    "roles/run.developer",
+    gcloud projects add-iam-policy-binding $GCP_PROJECT_ID --member="user:$CURRENT_USER" --role=$role --quiet 2>$null | Out-Null
-    "roles/artifactregistry.writer",
-    "roles/iam.serviceAccountUser",
-    "roles/secretmanager.admin",
-    "roles/secretmanager.secretAccessor",
-    "roles/secretmanager.secretVersionAdder"
-)) {
-    Write-Host "    Adding role: $role"
-    gcloud projects add-iam-policy-binding $GCP_PROJECT_ID `
-        --member="user:$CURRENT_USER" `
-        --role=$role `
-        --quiet
 }
 
 Write-Host ""
 Write-Host ">>> Project setup complete."
-Write-Host ""
-Write-Host ">>> Summary:"
-Write-Host "    Project ID:          $GCP_PROJECT_ID"
-Write-Host "    Region:              $GCP_REGION"
-Write-Host "    Artifact Registry:   $GCP_REGION-docker.pkg.dev/$GCP_PROJECT_ID/$GCP_REPOSITORY"
-Write-Host ""
 Write-Host ">>> Next step: run GCR\scripts\03-create-secrets.ps1"
+
+

GCR/scripts/03-create-secrets.ps1

@@ -1,122 +1,57 @@
-# =============================================================================
+#Requires -Version 5.1
-# 03-create-secrets.ps1  (Windows)
+param()
-# Creates and configures secrets in Google Cloud Secret Manager.
-#
-# Run this after 02-setup-project.ps1 to set up sensitive configuration
-# values (e.g., MongoDB connection string).
-#
-# Linux users: run GCR/scripts/03-create-secrets.sh instead.
-# =============================================================================
-#Requires -Version 5.1
 Set-StrictMode -Version Latest
-$ErrorActionPreference = 'Stop'
+$ErrorActionPreference = 'Continue'
 
 $ScriptDir = Split-Path -Parent $MyInvocation.MyCommand.Path
 $EnvFile   = Join-Path $ScriptDir "..\\.env"
-
+if (-not (Test-Path $EnvFile)) { Write-Error "ERROR: $EnvFile not found."; exit 1 }
-# ── Load .env ─────────────────────────────────────────────────────────────────
-if (-not (Test-Path $EnvFile)) {
-    Write-Error "ERROR: $EnvFile not found.`nCopy GCR\.env.example to GCR\.env and fill in your values first."
-    exit 1
-}
 
 $config = @{}
 foreach ($line in Get-Content $EnvFile) {
     if ($line -match '^\s*$' -or $line -match '^\s*#') { continue }
-    if ($line -match '^([^=]+)=(.*)$') {
+    if ($line -match '^([^=]+)=(.*)$') { $config[$Matches[1].Trim()] = $Matches[2].Trim() }
-        $config[$Matches[1].Trim()] = $Matches[2].Trim()
-    }
 }
 
-$GCP_PROJECT_ID = $config['GCP_PROJECT_ID'] ?? ''
+$GCP_PROJECT_ID = if ($config['GCP_PROJECT_ID']) { $config['GCP_PROJECT_ID'] } else { '' }
-if (-not $GCP_PROJECT_ID) { Write-Error "GCP_PROJECT_ID is not set in .env"; exit 1 }
+if (-not $GCP_PROJECT_ID) { Write-Error "GCP_PROJECT_ID not set"; exit 1 }
 
 Write-Host "================================================================"
-Write-Host "  Google Cloud Secret Manager setup"
+Write-Host "  Google Cloud Secret Manager setup - Project: $GCP_PROJECT_ID"
 Write-Host "================================================================"
-Write-Host "  Project: $GCP_PROJECT_ID"
 Write-Host ""
 
-# ── Helper function to create or update a secret ──────────────────────────────
+$SecretName = "mongodb-connection-string"
-function New-OrUpdateSecret {
+Write-Host ">>> Secret: $SecretName"
-    param(
+Write-Host "    MongoDB connection URI (e.g. mongodb+srv://user:pass@cluster.mongodb.net)"
-        [string]$SecretName,
+$val = Read-Host "    Enter value" -AsSecureString
-        [string]$SecretPrompt
+$plain = [System.Net.NetworkCredential]::new("", $val).Password
-    )
+$tmp = [System.IO.Path]::GetTempFileName()
-
+try {
-    Write-Host ">>> Setting up secret: $SecretName"
+    [System.IO.File]::WriteAllText($tmp, $plain, [System.Text.Encoding]::UTF8)
-    Write-Host "    $SecretPrompt"
-    
-    # Read secret without echo
-    $SecretValue = Read-Host "    Enter value (will not be echoed)" -AsSecureString
-    $PlainValue = [System.Runtime.InteropServices.Marshal]::PtrToStringAuto(
-        [System.Runtime.InteropServices.Marshal]::SecureStringToCoTaskMemUni($SecretValue)
-    )
-
-    # Write to temp file without trailing newline to avoid contaminating the secret
-    $TempFile = [System.IO.Path]::GetTempFileName()
-    try {
-        [System.IO.File]::WriteAllText($TempFile, $PlainValue, [System.Text.Encoding]::UTF8)
-
-        $secretExists = $false
-        try {
     gcloud secrets describe $SecretName --project=$GCP_PROJECT_ID 2>$null | Out-Null
-            $secretExists = $true
+    if ($LASTEXITCODE -eq 0) {
-        } catch { }
+        gcloud secrets versions add $SecretName --data-file=$tmp --project=$GCP_PROJECT_ID 2>$null | Out-Null
-
-        if ($secretExists) {
-            Write-Host "    Secret already exists — creating new version..."
-            gcloud secrets versions add $SecretName `
-                --data-file=$TempFile `
-                --project=$GCP_PROJECT_ID
     } else {
-            Write-Host "    Creating new secret..."
+        gcloud secrets create $SecretName --data-file=$tmp --replication-policy=automatic --project=$GCP_PROJECT_ID 2>$null | Out-Null
-            gcloud secrets create $SecretName `
-                --data-file=$TempFile `
-                --replication-policy="automatic" `
-                --project=$GCP_PROJECT_ID
     }
-    } finally {
+    if ($LASTEXITCODE -ne 0) { Write-Error "Failed to save secret."; exit 1 }
-        Remove-Item $TempFile -Force -ErrorAction SilentlyContinue
+} finally {
-    }
+    Remove-Item $tmp -Force -ErrorAction SilentlyContinue
-
-    Write-Host "    ✓ Secret '$SecretName' ready."
-    Write-Host ""
 }
+Write-Host "    Secret saved."
+Write-Host ""
 
-# ── Step 1: Create MongoDB connection string secret ──────────────────────────
-New-OrUpdateSecret `
-    "mongodb-connection-string" `
-    "MongoDB Atlas or self-hosted connection URI (e.g., mongodb+srv://user:pass@cluster.mongodb.net)"
-
-# ── Step 2: Grant Cloud Run service account access to secrets ─────────────────
 Write-Host ">>> Granting Cloud Run service account access to secrets..."
-Write-Host ""
+$PROJECT_NUMBER = (gcloud projects describe $GCP_PROJECT_ID --format='value(projectNumber)' 2>$null).Trim()
-
+$APPENGINE_SA = "$GCP_PROJECT_ID@appspot.gserviceaccount.com"
-# Get the default Cloud Run service account for this project
+$COMPUTE_SA = "$PROJECT_NUMBER-compute@developer.gserviceaccount.com"
-$SERVICE_ACCOUNT = "$GCP_PROJECT_ID@appspot.gserviceaccount.com"
+gcloud iam service-accounts describe $APPENGINE_SA --project=$GCP_PROJECT_ID 2>$null | Out-Null
-
+$SA = if ($LASTEXITCODE -eq 0) { $APPENGINE_SA } else { $COMPUTE_SA }
-foreach ($SECRET_NAME in @("mongodb-connection-string")) {
+Write-Host "    Granting secretAccessor on '$SecretName' to: $SA"
-    Write-Host "    Granting Secret Accessor role for '$SECRET_NAME' to $SERVICE_ACCOUNT"
+gcloud secrets add-iam-policy-binding $SecretName --member="serviceAccount:$SA" --role=roles/secretmanager.secretAccessor --project=$GCP_PROJECT_ID --quiet 2>$null | Out-Null
-    gcloud secrets add-iam-policy-binding $SECRET_NAME `
+if ($LASTEXITCODE -ne 0) { Write-Error "Failed to grant access."; exit 1 }
-        --member="serviceAccount:$SERVICE_ACCOUNT" `
-        --role="roles/secretmanager.secretAccessor" `
-        --project=$GCP_PROJECT_ID `
-        --quiet
-}
 
 Write-Host ""
-Write-Host "================================================================"
+Write-Host ">>> Secrets setup complete."
-Write-Host "  Secret Manager setup complete!"
-Write-Host "================================================================"
-Write-Host ""
-Write-Host ">>> Summary:"
-Write-Host "    Secrets created:"
-Write-Host "      • mongodb-connection-string"
-Write-Host ""
-Write-Host "    Service account granted access:"
-Write-Host "      • $SERVICE_ACCOUNT"
-Write-Host ""
 Write-Host ">>> Next step: run GCR\scripts\04-deploy.ps1"
-Write-Host "    (The deploy script will automatically inject secrets into"
-Write-Host "     the running container.)"

GCR/scripts/04-deploy.ps1

@@ -1,112 +1,54 @@
-# =============================================================================
+#Requires -Version 5.1
-# 04-deploy.ps1  (Windows)
+param([string]$Tag)
-# Builds the Docker image, pushes it to Artifact Registry, and deploys it
-# to Cloud Run — all in one command.
-#
-# Usage:
-#   .\GCR\scripts\04-deploy.ps1              # deploy with tag = git short SHA
-#   .\GCR\scripts\04-deploy.ps1 -Tag my-tag  # deploy with a custom tag
-#
-# Prerequisites:
-#   1. GCR\.env exists and is filled in  (copy from GCR\.env.example)
-#   2. 01-login.ps1 has been run (gcloud auth + Docker configured)
-#   3. 02-setup-project.ps1 has been run (APIs enabled, repo created)
-#   4. 03-create-secrets.ps1 has been run (MongoDB secret created)
-#   5. Docker Desktop is running
-#
-# Linux users: run GCR/scripts/04-deploy.sh instead.
-# =============================================================================
-#Requires -Version 5.1
-[CmdletBinding()]
-param(
-    [string]$Tag = ""
-)
 Set-StrictMode -Version Latest
-$ErrorActionPreference = 'Stop'
+$ErrorActionPreference = 'Continue'
 
 $ScriptDir = Split-Path -Parent $MyInvocation.MyCommand.Path
-$RepoRoot  = (Resolve-Path (Join-Path $ScriptDir "..\..")).Path
 $EnvFile   = Join-Path $ScriptDir "..\\.env"
-
+if (-not (Test-Path $EnvFile)) { Write-Error "ERROR: $EnvFile not found."; exit 1 }
-# ── Load .env ─────────────────────────────────────────────────────────────────
-if (-not (Test-Path $EnvFile)) {
-    Write-Error "ERROR: $EnvFile not found.`nCopy GCR\.env.example to GCR\.env and fill in your values first."
-    exit 1
-}
 
 $config = @{}
 foreach ($line in Get-Content $EnvFile) {
     if ($line -match '^\s*$' -or $line -match '^\s*#') { continue }
-    if ($line -match '^([^=]+)=(.*)$') {
+    if ($line -match '^([^=]+)=(.*)$') { $config[$Matches[1].Trim()] = $Matches[2].Trim() }
-        $config[$Matches[1].Trim()] = $Matches[2].Trim()
-    }
 }
 
-$GCP_PROJECT_ID        = $config['GCP_PROJECT_ID']        ?? ''
+$GCP_PROJECT_ID        = if ($config['GCP_PROJECT_ID'])        { $config['GCP_PROJECT_ID'] }        else { '' }
-$GCP_REGION            = $config['GCP_REGION']            ?? ''
+$GCP_REGION            = if ($config['GCP_REGION'])            { $config['GCP_REGION'] }            else { '' }
-$GCP_REPOSITORY        = $config['GCP_REPOSITORY']        ?? ''
+$GCP_REPOSITORY        = if ($config['GCP_REPOSITORY'])        { $config['GCP_REPOSITORY'] }        else { '' }
-$SERVICE_NAME          = $config['SERVICE_NAME']          ?? ''
+$SERVICE_NAME          = if ($config['SERVICE_NAME'])          { $config['SERVICE_NAME'] }          else { '' }
-$MONGODB_DATABASE_NAME = $config['MONGODB_DATABASE_NAME'] ?? 'HtmxAppDb'
+$MONGODB_DATABASE_NAME = if ($config['MONGODB_DATABASE_NAME']) { $config['MONGODB_DATABASE_NAME'] } else { 'HtmxAppDb' }
 
-# Note: MONGODB_CONNECTION_STRING is stored in Secret Manager (mongodb-connection-string)
+if (-not $GCP_PROJECT_ID)   { Write-Error "GCP_PROJECT_ID not set";   exit 1 }
+if (-not $GCP_REGION)       { Write-Error "GCP_REGION not set";       exit 1 }
+if (-not $GCP_REPOSITORY)   { Write-Error "GCP_REPOSITORY not set";   exit 1 }
+if (-not $SERVICE_NAME)     { Write-Error "SERVICE_NAME not set";     exit 1 }
 
-if (-not $GCP_PROJECT_ID)   { Write-Error "GCP_PROJECT_ID is not set in .env";   exit 1 }
+gcloud secrets describe mongodb-connection-string --project=$GCP_PROJECT_ID 2>$null | Out-Null
-if (-not $GCP_REGION)       { Write-Error "GCP_REGION is not set in .env";       exit 1 }
+if ($LASTEXITCODE -ne 0) {
-if (-not $GCP_REPOSITORY)   { Write-Error "GCP_REPOSITORY is not set in .env";   exit 1 }
+    Write-Host ">>> Required secrets not configured."
-if (-not $SERVICE_NAME)     { Write-Error "SERVICE_NAME is not set in .env";     exit 1 }
+    $ans = Read-Host "    Run 03-create-secrets.ps1 now? [y/N]"
-
+    if ($ans -match '^[Yy]$') {
-# Note: MONGODB_CONNECTION_STRING is stored in Secret Manager
-
-function Test-SecretsReady {
-    $serviceAccount = "serviceAccount:$GCP_PROJECT_ID@appspot.gserviceaccount.com"
-
-    try {
-        gcloud secrets describe mongodb-connection-string --project=$GCP_PROJECT_ID 2>$null | Out-Null
-    } catch {
-        return $false
-    }
-
-    $binding = gcloud secrets get-iam-policy mongodb-connection-string `
-        --project=$GCP_PROJECT_ID `
-        --flatten="bindings[].members" `
-        --filter="bindings.role=roles/secretmanager.secretAccessor AND bindings.members=$serviceAccount" `
-        --format="value(bindings.members)" 2>$null
-
-    return ($binding -match [regex]::Escape($serviceAccount))
-}
-
-if (-not (Test-SecretsReady)) {
-    Write-Host ""
-    Write-Host ">>> Required secrets are not fully configured yet."
-    $runSecretSetup = Read-Host "    Run GCR\scripts\03-create-secrets.ps1 now? [y/N]"
-    if ($runSecretSetup -match '^[Yy]$') {
         & (Join-Path $ScriptDir "03-create-secrets.ps1")
+        gcloud secrets describe mongodb-connection-string --project=$GCP_PROJECT_ID 2>$null | Out-Null
+        if ($LASTEXITCODE -ne 0) { Write-Error "Secret setup failed."; exit 1 }
     } else {
-        Write-Host ""
+        Write-Error "Run 03-create-secrets.ps1 first."; exit 1
-        Write-Error "Deployment requires secret setup first. Run: .\GCR\scripts\03-create-secrets.ps1"
-        exit 1
-    }
-
-    if (-not (Test-SecretsReady)) {
-        Write-Host ""
-        Write-Error "Secret setup check still failing after running 03-create-secrets.ps1."
-        exit 1
     }
 }
+$bindings = gcloud secrets get-iam-policy mongodb-connection-string --project=$GCP_PROJECT_ID --flatten='bindings[].members' --filter='bindings.role=roles/secretmanager.secretAccessor' --format='value(bindings.members)' 2>$null
+if ([string]::IsNullOrWhiteSpace($bindings)) {
+    Write-Error "No service account has secretAccessor access. Run 03-create-secrets.ps1 first."
+    exit 1
+}
 
-# ── Determine image tag ────────────────────────────────────────────────────────
 if (-not $Tag) {
-    # Default to git short SHA if inside a git repo; otherwise use timestamp
+    try { $Tag = (git rev-parse --short HEAD 2>$null).Trim() } catch { }
-    try {
+    if ([string]::IsNullOrWhiteSpace($Tag)) { $Tag = (Get-Date -Format "yyyyMMdd-HHmmss") }
-        $Tag = (git -C $RepoRoot rev-parse --short HEAD 2>$null).Trim()
-    } catch { }
-    if (-not $Tag) {
-        $Tag = (Get-Date -Format "yyyyMMddHHmmss")
-    }
 }
 
-$REGISTRY  = "$GCP_REGION-docker.pkg.dev"
+$IMAGE = "$GCP_REGION-docker.pkg.dev/$GCP_PROJECT_ID/$GCP_REPOSITORY/htmx-demo-app:$Tag"
-$IMAGE_URI = "$REGISTRY/$GCP_PROJECT_ID/$GCP_REPOSITORY/${SERVICE_NAME}:$Tag"
+$contextDir = Split-Path -Parent (Split-Path -Parent $ScriptDir)
 
 Write-Host "================================================================"
 Write-Host "  Htmx -> Cloud Run deployment"
@@ -114,81 +56,40 @@ Write-Host "================================================================"
 Write-Host "  Project:   $GCP_PROJECT_ID"
 Write-Host "  Region:    $GCP_REGION"
 Write-Host "  Service:   $SERVICE_NAME"
-Write-Host "  Image:     $IMAGE_URI"
+Write-Host "  Image:     $IMAGE"
 Write-Host "================================================================"
 Write-Host ""
 
-# ── Step 1: Ensure package-lock.json exists (required for `npm ci`) ───────────
+docker info 2>$null | Out-Null
-$LockFile = Join-Path $RepoRoot "Htmx.ApiDemo\package-lock.json"
+if ($LASTEXITCODE -ne 0) {
-if (-not (Test-Path $LockFile)) {
+    Write-Error "Docker is not running. Start Docker Desktop first."
-    Write-Host ">>> package-lock.json not found. Generating it now..."
+    exit 1
-    Write-Host "    (This requires node + npm to be installed locally)"
-    Push-Location (Join-Path $RepoRoot "Htmx.ApiDemo")
-    npm install --package-lock-only
-    Pop-Location
-    Write-Host "    package-lock.json generated. Commit it to the repository."
-    Write-Host ""
 }
 
-# ── Step 2: Build the Docker image ────────────────────────────────────────────
 Write-Host ">>> Building Docker image..."
-Write-Host "    Context:    $RepoRoot"
+$env:DOCKER_BUILDKIT = "1"
-Write-Host "    Dockerfile: GCR\Dockerfile"
+docker build -t $IMAGE -f "$contextDir\GCR\Dockerfile" $contextDir
-Write-Host ""
+if ($LASTEXITCODE -ne 0) { Write-Error "Docker build failed."; exit 1 }
-
+Write-Host ">>> Image built: $IMAGE"
-# Build from repo root so COPY instructions can reach both project directories.
-# Docker on Windows accepts forward slashes in --file.
-$DockerFile = Join-Path $RepoRoot "GCR\Dockerfile"
-docker build --file $DockerFile --tag $IMAGE_URI $RepoRoot
 
 Write-Host ""
-Write-Host ">>> Image built: $IMAGE_URI"
+Write-Host ">>> Pushing to Artifact Registry..."
-
+docker push $IMAGE
-# ── Step 3: Push image to Artifact Registry ───────────────────────────────────
+if ($LASTEXITCODE -ne 0) { Write-Error "Docker push failed."; exit 1 }
-Write-Host ""
-Write-Host ">>> Pushing image to Artifact Registry..."
-docker push $IMAGE_URI
 Write-Host ">>> Push complete."
 
-# ── Step 4: Deploy to Cloud Run via docker-compose.yml ───────────────────────
 Write-Host ""
 Write-Host ">>> Deploying to Cloud Run..."
+gcloud run services update $SERVICE_NAME --project=$GCP_PROJECT_ID --region=$GCP_REGION --image=$IMAGE --set-env-vars=MONGODB_DATABASE_NAME=$MONGODB_DATABASE_NAME --set-secrets=ConnectionStrings__DefaultConnection=mongodb-connection-string:latest --allow-unauthenticated 2>$null
+if ($LASTEXITCODE -ne 0) {
+    Write-Host "    Service not found, creating..."
+    gcloud run deploy $SERVICE_NAME --project=$GCP_PROJECT_ID --region=$GCP_REGION --image=$IMAGE --set-env-vars=MONGODB_DATABASE_NAME=$MONGODB_DATABASE_NAME --set-secrets=ConnectionStrings__DefaultConnection=mongodb-connection-string:latest --allow-unauthenticated 2>$null
+    if ($LASTEXITCODE -ne 0) { Write-Error "Deployment failed."; exit 1 }
+}
+Write-Host ">>> Deployment complete."
 
-# Set env vars consumed by docker-compose.yml variable substitution
+$SERVICE_URL = (gcloud run services describe $SERVICE_NAME --region=$GCP_REGION --project=$GCP_PROJECT_ID --format='value(status.url)' 2>$null).Trim()
-$env:IMAGE_URI             = $IMAGE_URI
-$env:MONGODB_DATABASE_NAME = $MONGODB_DATABASE_NAME
-
-$ComposeFile = Join-Path $RepoRoot "GCR\docker-compose.yml"
-gcloud run services replace $ComposeFile `
-    --region=$GCP_REGION `
-    --project=$GCP_PROJECT_ID
-
-# ── Step 4b: Inject MongoDB connection string from Secret Manager ────────────
 Write-Host ""
-Write-Host ">>> Injecting MongoDB connection string from Secret Manager..."
-gcloud run services update $SERVICE_NAME `
-    --region=$GCP_REGION `
-    --project=$GCP_PROJECT_ID `
-    --set-secrets="ConnectionStrings__DefaultConnection=mongodb-connection-string:latest"
-
-# ── Step 5: Make the service publicly accessible ──────────────────────────────
-# Remove this block if you want the service to require authentication.
-Write-Host ""
-Write-Host ">>> Allowing public (unauthenticated) access to the service..."
-gcloud run services add-iam-policy-binding $SERVICE_NAME `
-    --region=$GCP_REGION `
-    --project=$GCP_PROJECT_ID `
-    --member="allUsers" `
-    --role="roles/run.invoker"
-
-# ── Print service URL ─────────────────────────────────────────────────────────
-Write-Host ""
-$SERVICE_URL = (gcloud run services describe $SERVICE_NAME `
-    --region=$GCP_REGION `
-    --project=$GCP_PROJECT_ID `
-    --format="value(status.url)").Trim()
-
 Write-Host "================================================================"
-Write-Host "  Deployment complete!"
+Write-Host "  Done! Service URL: $SERVICE_URL"
-Write-Host "  Service URL: $SERVICE_URL"
 Write-Host "================================================================"

Htmx.ApiDemo/AppJsonSerializerContext.cs

@@ -1,13 +1,18 @@
 using System.Text.Json.Serialization;
 using Htmx.ApiDemo.Templates;
+using Microsoft.AspNetCore.Http;
 
 namespace Htmx.ApiDemo;
 
 [JsonSerializable(typeof(string))]
+[JsonSerializable(typeof(Task),                  GenerationMode = JsonSourceGenerationMode.Metadata)]
+[JsonSerializable(typeof(ValueTask),             GenerationMode = JsonSourceGenerationMode.Metadata)]
+[JsonSerializable(typeof(IResult),               GenerationMode = JsonSourceGenerationMode.Metadata)]
+[JsonSerializable(typeof(Task<IResult>),         GenerationMode = JsonSourceGenerationMode.Metadata)]
+[JsonSerializable(typeof(ValueTask<IResult>),    GenerationMode = JsonSourceGenerationMode.Metadata)]
 [JsonSerializable(typeof(PostLoginHandler.Command),    TypeInfoPropertyName = "LoginCommand")]
 [JsonSerializable(typeof(PostRegisterHandler.Command), TypeInfoPropertyName = "RegisterCommand")]
 [JsonSerializable(typeof(PostLogoutHandler.Command),   TypeInfoPropertyName = "LogoutCommand")]
 internal partial class AppJsonSerializerContext : JsonSerializerContext
 {
-
 }

Htmx.ApiDemo/Htmx.ApiDemo.csproj

@@ -13,8 +13,19 @@
     <EnableRequestDelegateGenerator>true</EnableRequestDelegateGenerator>
     <PublishAot>true</PublishAot>
     <InterceptorsPreviewNamespaces>$(InterceptorsPreviewNamespaces);Immediate.Apis.Generators</InterceptorsPreviewNamespaces>
+    <!--
+      IL2026 warnings come from STJ-generated serializers for Task → AggregateException → Exception.TargetSite.
+      We register Task/ValueTask in AppJsonSerializerContext only so RequestDelegateFactory.GetTypeInfo()
+      doesn't throw at startup — we never actually serialize a Task. TargetSite is unsupported in
+      NativeAOT anyway, so suppressing this warning here is safe.
+    -->
+    <NoWarn>$(NoWarn);IL2026</NoWarn>
   </PropertyGroup>
 
+  <ItemGroup>
+    <RdXmlFile Include="rd.xml" />
+  </ItemGroup>
+
   <ItemGroup>
     <CompilerVisibleProperty Include="RootNamespace" />
     <CompilerVisibleProperty Include="MSBuildProjectDirectory" />

Htmx.ApiDemo/HtmxPageExtensions.cs

@@ -12,7 +12,7 @@ namespace Htmx.ApiDemo;
 /// </summary>
 public static class HtmxPageExtensions
 {
-    public static void WriteHtmxPage(
+    public static HtmxResult WriteHtmxPage(
         this HttpContext ctx,
         IHtmxComponent body,
         string title     = "App",
@@ -21,24 +21,20 @@ public static class HtmxPageExtensions
     {
         if (ctx.Request.Headers.ContainsKey("HX-Request"))
         {
-            // Partial swap: tell HTMX to update the browser <title> tag
             ctx.Response.Headers["HX-Title"] = title;
-            ctx.WriteHtmxBody(body);
+            return ctx.WriteHtmxBody(body);
         }
         else
         {
-            // Resolve display name: prefer DisplayName claim, fall back to email/name
             string? userName = ctx.User.Identity?.IsAuthenticated == true
                 ? (ctx.User.FindFirst("DisplayName")?.Value
                    ?? ctx.User.FindFirst(System.Security.Claims.ClaimTypes.Name)?.Value)
                 : null;
 
-            // Resolve antiforgery token for the logout form in the layout
             var antiforgery = ctx.RequestServices.GetRequiredService<IAntiforgery>();
             var afTokens    = antiforgery.GetAndStoreTokens(ctx);
 
-            // Full page load: wrap in the shell layout
+            return ctx.WriteHtmxBody(new Templates.MainLayout(body, title, appName, pageTitle, userName, afTokens.RequestToken));
-            ctx.WriteHtmxBody(new Templates.MainLayout(body, title, appName, pageTitle, userName, afTokens.RequestToken));
         }
     }
 }

Htmx.ApiDemo/HtmxResult.cs

@@ -0,0 +1,31 @@
+using Microsoft.AspNetCore.Http;
+
+namespace Htmx.ApiDemo;
+
+/// <summary>
+/// IResult implementation for rendering Htmx components as HTML or issuing redirects.
+/// Defined as user code (not source-generated) so that RequestDelegateGenerator can
+/// see it and emit NativeAOT-safe endpoint interceptors for lambdas returning this type.
+/// </summary>
+public readonly struct HtmxResult : IResult
+{
+    private readonly IHtmxComponent? _component;
+    private readonly string? _redirectUrl;
+
+    public HtmxResult(IHtmxComponent component) { _component = component; _redirectUrl = null; }
+    public HtmxResult(string redirectUrl)        { _component = null; _redirectUrl = redirectUrl; }
+
+    public Task ExecuteAsync(HttpContext context)
+    {
+        if (_redirectUrl is not null)
+        {
+            context.Response.Redirect(_redirectUrl);
+            return Task.CompletedTask;
+        }
+
+        context.Response.ContentType = "text/html; charset=utf-8";
+        var writerContext = new HtmxRenderContext(context.Response.BodyWriter);
+        _component!.Render(writerContext);
+        return Task.CompletedTask;
+    }
+}

Htmx.ApiDemo/Program.cs

@@ -9,9 +9,16 @@ using MongoDB.Bson.Serialization;
 using MongoDB.Bson.Serialization.Serializers;
 using MongoDB.Driver;
 
+// ── Explicit serializer registrations — force AOT to preserve constructors ─
+BsonSerializer.RegisterSerializer(new ObjectIdSerializer());
+BsonSerializer.RegisterSerializer(new StringSerializer());
+BsonSerializer.RegisterSerializer(new DateTimeSerializer());
+BsonSerializer.RegisterSerializer(new BooleanSerializer());
+BsonSerializer.RegisterSerializer(new NullableSerializer<DateTime>(new DateTimeSerializer()));
 // ── Explicit BsonClassMap — no AutoMap() reflection, fully AOT-safe ───────
 BsonClassMap.RegisterClassMap<AppUser>(cm =>
 {
+    cm.AutoMap();
     cm.MapIdProperty(u => u.Id).SetSerializer(new ObjectIdSerializer());
     cm.MapProperty(u => u.Email).SetElementName("email");
     cm.MapProperty(u => u.NormalizedEmail).SetElementName("normalizedEmail");
@@ -95,6 +102,47 @@ app.Use(async (context, next) =>
     await next();
 });
 
-app.MapHtmxApiDemoEndpoints();
+// Explicit MapGet/MapPost so RequestDelegateGenerator can intercept and emit
+// NativeAOT-safe endpoint code. Handlers return ValueTask<IResult> which the
+// generator knows how to handle: it emits `await result.ExecuteAsync(httpContext)`.
+app.MapGet("/", static (
+    [AsParameters] Htmx.ApiDemo.Templates.GetIndexHandler.Command cmd,
+    Htmx.ApiDemo.Templates.GetIndexHandler.Handler handler,
+    CancellationToken token) => handler.HandleAsync(cmd, token));
+
+app.MapGet("/greet/{username}/{count?}/{id?}", static (
+    [AsParameters] Htmx.ApiDemo.Templates.GetGreetingHandler.Query query,
+    Htmx.ApiDemo.Templates.GetGreetingHandler.Handler handler,
+    CancellationToken token) => handler.HandleAsync(query, token));
+
+app.MapGet("/login", static (
+    [AsParameters] Htmx.ApiDemo.Templates.GetLoginHandler.Query query,
+    Htmx.ApiDemo.Templates.GetLoginHandler.Handler handler,
+    CancellationToken token) => handler.HandleAsync(query, token));
+
+app.MapPost("/login", static (
+    [AsParameters] Htmx.ApiDemo.Templates.PostLoginHandler.Command cmd,
+    Htmx.ApiDemo.Templates.PostLoginHandler.Handler handler,
+    CancellationToken token) => handler.HandleAsync(cmd, token));
+
+app.MapGet("/register", static (
+    [AsParameters] Htmx.ApiDemo.Templates.GetRegisterHandler.Query query,
+    Htmx.ApiDemo.Templates.GetRegisterHandler.Handler handler,
+    CancellationToken token) => handler.HandleAsync(query, token));
+
+app.MapPost("/register", static (
+    [AsParameters] Htmx.ApiDemo.Templates.PostRegisterHandler.Command cmd,
+    Htmx.ApiDemo.Templates.PostRegisterHandler.Handler handler,
+    CancellationToken token) => handler.HandleAsync(cmd, token));
+
+app.MapPost("/logout", static (
+    [AsParameters] Htmx.ApiDemo.Templates.PostLogoutHandler.Command cmd,
+    Htmx.ApiDemo.Templates.PostLogoutHandler.Handler handler,
+    CancellationToken token) => handler.HandleAsync(cmd, token));
+
+app.MapGet("/ui-demo", static (
+    [AsParameters] Htmx.ApiDemo.Templates.GetUiDemoHandler.Query query,
+    Htmx.ApiDemo.Templates.GetUiDemoHandler.Handler handler,
+    CancellationToken token) => handler.HandleAsync(query, token));
 
 app.Run();

Htmx.ApiDemo/Templates/Greeting.htmx.cs

@@ -1,5 +1,7 @@
 using Immediate.Apis.Shared;
 using Immediate.Handlers.Shared;
+using Microsoft.AspNetCore.Http;
+using Microsoft.AspNetCore.Mvc;
 
 namespace Htmx.ApiDemo.Templates;
 
@@ -21,9 +23,14 @@ public sealed class Greeting : GreetingBase
 [MapGet("/greet/{username}/{count?}/{id?}")]
 public static partial class GetGreetingHandler
 {
-    public record Query(string Username, int? Count, Guid? Id);
+    public class Query
+    {
+        [FromRoute] public string  Username { get; set; } = default!;
+        [FromRoute] public string? Count    { get; set; }
+        [FromRoute] public string? Id       { get; set; }
+    }
 
-    private static ValueTask HandleAsync(
+    private static ValueTask<IResult> HandleAsync(
         Query query,
         IHttpContextAccessor httpContextAccessor,
         CancellationToken token)
@@ -31,8 +38,9 @@ public static partial class GetGreetingHandler
         var context = httpContextAccessor.HttpContext
             ?? throw new InvalidOperationException("HttpContext is not available.");
 
-        var template = new Greeting { Username = query.Username, Count = query.Count + 1 ?? 0, GreetingId = query.Id ?? Guid.NewGuid() };
+        var count = int.TryParse(query.Count, out var parsedCount) ? parsedCount + 1 : 0;
-        context.WriteHtmxBody(template);
+        var greetingId = Guid.TryParse(query.Id, out var parsedId) ? parsedId : Guid.NewGuid();
-        return ValueTask.CompletedTask;
+        var template = new Greeting { Username = query.Username, Count = count, GreetingId = greetingId };
+        return ValueTask.FromResult<IResult>(context.WriteHtmxBody(template));
     }
 }

Htmx.ApiDemo/Templates/Login.htmx.cs

@@ -2,6 +2,7 @@ using Htmx.ApiDemo.Data;
 using Immediate.Apis.Shared;
 using Immediate.Handlers.Shared;
 using Microsoft.AspNetCore.Antiforgery;
+using Microsoft.AspNetCore.Http;
 using Microsoft.AspNetCore.Mvc;
 
 namespace Htmx.ApiDemo.Templates;
@@ -31,9 +32,9 @@ public sealed class Login : LoginBase
 [MapGet("/login")]
 public static partial class GetLoginHandler
 {
-    public record Query;
+    public class Query;
 
-    private static ValueTask HandleAsync(
+    private static ValueTask<IResult> HandleAsync(
         Query _,
         IHttpContextAccessor httpContextAccessor,
         IAntiforgery antiforgery,
@@ -43,14 +44,10 @@ public static partial class GetLoginHandler
             ?? throw new InvalidOperationException("HttpContext is not available.");
 
         if (ctx.User.Identity?.IsAuthenticated == true)
-        {
+            return ValueTask.FromResult<IResult>(new HtmxResult("/"));
-            ctx.Response.Redirect("/");
-            return ValueTask.CompletedTask;
-        }
 
         var afTokens = antiforgery.GetAndStoreTokens(ctx);
-        ctx.WriteHtmxPage(new Login(afToken: afTokens.RequestToken), title: "Sign in", appName: "HtmxApp", pageTitle: "Sign in");
+        return ValueTask.FromResult<IResult>(ctx.WriteHtmxPage(new Login(afToken: afTokens.RequestToken), title: "Sign in", appName: "HtmxApp", pageTitle: "Sign in"));
-        return ValueTask.CompletedTask;
     }
 }
 
@@ -59,12 +56,13 @@ public static partial class GetLoginHandler
 [MapPost("/login")]
 public static partial class PostLoginHandler
 {
-    public record Command(
+    public class Command
-        [property: FromForm] string Email,
+    {
-        [property: FromForm] string Password
+        [FromForm] public string Email { get; set; } = default!;
-    );
+        [FromForm] public string Password { get; set; } = default!;
+    }
 
-    private static async ValueTask HandleAsync(
+    private static async ValueTask<IResult> HandleAsync(
         [AsParameters] Command command,
         IHttpContextAccessor httpContextAccessor,
         IAntiforgery antiforgery,
@@ -77,12 +75,9 @@ public static partial class PostLoginHandler
         var (success, error) = await authService.LoginAsync(command.Email, command.Password);
 
         if (success)
-        {
+            return new HtmxResult("/");
-            ctx.Response.Redirect("/");
-            return;
-        }
 
         var afTokens = antiforgery.GetAndStoreTokens(ctx);
-        ctx.WriteHtmxPage(new Login(error, afToken: afTokens.RequestToken), title: "Sign in", appName: "HtmxApp", pageTitle: "Sign in");
+        return ctx.WriteHtmxPage(new Login(error, afToken: afTokens.RequestToken), title: "Sign in", appName: "HtmxApp", pageTitle: "Sign in");
     }
 }

Htmx.ApiDemo/Templates/Logout.cs

@@ -11,7 +11,7 @@ public static partial class PostLogoutHandler
 {
     // Empty command — [AsParameters] ensures form content-type is accepted
     // and antiforgery token in the form is validated by the middleware.
-    public record Command;
+    public class Command;
 
     private static async ValueTask HandleAsync(
         [AsParameters] Command _,

Htmx.ApiDemo/Templates/MainLayout.htmx.cs

@@ -2,6 +2,7 @@ using Htmx.ApiDemo;
 using Htmx.ApiDemo.Templates.Components;
 using Immediate.Apis.Shared;
 using Immediate.Handlers.Shared;
+using Microsoft.AspNetCore.Http;
 
 namespace Htmx.ApiDemo.Templates;
 
@@ -73,9 +74,9 @@ public sealed class MainLayout : MainLayoutBase
 [MapGet("/")]
 public static partial class GetIndexHandler
 {
-    public record Command;
+    public class Command;
 
-    private static ValueTask HandleAsync(
+    private static ValueTask<IResult> HandleAsync(
         Command command,
         IHttpContextAccessor httpContextAccessor,
         CancellationToken token)
@@ -84,8 +85,6 @@ public static partial class GetIndexHandler
             ?? throw new InvalidOperationException("HttpContext is not available.");
 
         var greet  = new Greeting { Username = "Enciphered", Count = 0, GreetingId = Guid.NewGuid() };
-        context.WriteHtmxPage(greet, title: "Home", appName: "HtmxApp", pageTitle: "Home");
+        return ValueTask.FromResult<IResult>(context.WriteHtmxPage(greet, title: "Home", appName: "HtmxApp", pageTitle: "Home"));
-
-        return ValueTask.CompletedTask;
     }
 }

Htmx.ApiDemo/Templates/Register.htmx.cs

@@ -2,6 +2,7 @@ using Htmx.ApiDemo.Data;
 using Immediate.Apis.Shared;
 using Immediate.Handlers.Shared;
 using Microsoft.AspNetCore.Antiforgery;
+using Microsoft.AspNetCore.Http;
 using Microsoft.AspNetCore.Mvc;
 
 namespace Htmx.ApiDemo.Templates;
@@ -31,9 +32,9 @@ public sealed class Register : RegisterBase
 [MapGet("/register")]
 public static partial class GetRegisterHandler
 {
-    public record Query;
+    public class Query;
 
-    private static ValueTask HandleAsync(
+    private static ValueTask<IResult> HandleAsync(
         Query _,
         IHttpContextAccessor httpContextAccessor,
         IAntiforgery antiforgery,
@@ -43,14 +44,10 @@ public static partial class GetRegisterHandler
             ?? throw new InvalidOperationException("HttpContext is not available.");
 
         if (ctx.User.Identity?.IsAuthenticated == true)
-        {
+            return ValueTask.FromResult<IResult>(new HtmxResult("/"));
-            ctx.Response.Redirect("/");
-            return ValueTask.CompletedTask;
-        }
 
         var afTokens = antiforgery.GetAndStoreTokens(ctx);
-        ctx.WriteHtmxPage(new Register(afToken: afTokens.RequestToken), title: "Register", appName: "HtmxApp", pageTitle: "Create account");
+        return ValueTask.FromResult<IResult>(ctx.WriteHtmxPage(new Register(afToken: afTokens.RequestToken), title: "Register", appName: "HtmxApp", pageTitle: "Create account"));
-        return ValueTask.CompletedTask;
     }
 }
 
@@ -59,14 +56,15 @@ public static partial class GetRegisterHandler
 [MapPost("/register")]
 public static partial class PostRegisterHandler
 {
-    public record Command(
+    public class Command
-        [property: FromForm] string Email,
+    {
-        [property: FromForm] string Password,
+        [FromForm] public string Email { get; set; } = default!;
-        [property: FromForm] string ConfirmPassword,
+        [FromForm] public string Password { get; set; } = default!;
-        [property: FromForm] string? DisplayName
+        [FromForm] public string ConfirmPassword { get; set; } = default!;
-    );
+        [FromForm] public string? DisplayName { get; set; }
+    }
 
-    private static async ValueTask HandleAsync(
+    private static async ValueTask<IResult> HandleAsync(
         [AsParameters] Command command,
         IHttpContextAccessor httpContextAccessor,
         IAntiforgery antiforgery,
@@ -79,21 +77,17 @@ public static partial class PostRegisterHandler
         if (command.Password != command.ConfirmPassword)
         {
             var afTokens1 = antiforgery.GetAndStoreTokens(ctx);
-            ctx.WriteHtmxPage(new Register("Passwords do not match.", afToken: afTokens1.RequestToken),
+            return ctx.WriteHtmxPage(new Register("Passwords do not match.", afToken: afTokens1.RequestToken),
                 title: "Register", appName: "HtmxApp", pageTitle: "Create account");
-            return;
         }
 
         var (success, error) = await authService.RegisterAsync(command.Email, command.Password, command.DisplayName);
 
         if (success)
-        {
+            return new HtmxResult("/");
-            ctx.Response.Redirect("/");
-            return;
-        }
 
         var afTokens2 = antiforgery.GetAndStoreTokens(ctx);
-        ctx.WriteHtmxPage(new Register(error, afToken: afTokens2.RequestToken),
+        return ctx.WriteHtmxPage(new Register(error, afToken: afTokens2.RequestToken),
             title: "Register", appName: "HtmxApp", pageTitle: "Create account");
     }
 }

Htmx.ApiDemo/Templates/UiDemo.htmx.cs

@@ -1,6 +1,7 @@
 using Htmx.ApiDemo.Templates.Components;
 using Immediate.Apis.Shared;
 using Immediate.Handlers.Shared;
+using Microsoft.AspNetCore.Http;
 
 namespace Htmx.ApiDemo.Templates;
 
@@ -370,9 +371,9 @@ public sealed class UiDemo : UiDemoBase
 [MapGet("/ui-demo")]
 public static partial class GetUiDemoHandler
 {
-    public record Query;
+    public class Query;
 
-    private static ValueTask HandleAsync(
+    private static ValueTask<IResult> HandleAsync(
         Query query,
         IHttpContextAccessor httpContextAccessor,
         CancellationToken token)
@@ -381,8 +382,6 @@ public static partial class GetUiDemoHandler
             ?? throw new InvalidOperationException("HttpContext is not available.");
 
         var page = new UiDemo();
-        context.WriteHtmxPage(page, title: "UI Demo", appName: "HtmxApp", pageTitle: "UI Components");
+        return ValueTask.FromResult<IResult>(context.WriteHtmxPage(page, title: "UI Demo", appName: "HtmxApp", pageTitle: "UI Components"));
-
-        return ValueTask.CompletedTask;
     }
 }

Htmx.ApiDemo/publish-test/appsettings.Development.json

@@ -0,0 +1,8 @@
+{
+  "Logging": {
+    "LogLevel": {
+      "Default": "Information",
+      "Microsoft.AspNetCore": "Warning"
+    }
+  }
+}

Htmx.ApiDemo/publish-test/appsettings.json

@@ -0,0 +1,13 @@
+{
+  "ConnectionStrings": {
+    "DefaultConnection": "mongodb://localhost:27017"
+  },
+  "MongoDbName": "HtmxAppDb",
+  "Logging": {
+    "LogLevel": {
+      "Default": "Information",
+      "Microsoft.AspNetCore": "Warning"
+    }
+  },
+  "AllowedHosts": "*"
+}

Htmx.ApiDemo/publish-test/package.json

@@ -0,0 +1,6 @@
+{
+  "dependencies": {
+    "@tailwindcss/cli": "^4.2.4",
+    "tailwindcss": "^4.2.4"
+  }
+}

Htmx.ApiDemo/publish-test/wwwroot/css/input.css

@@ -0,0 +1,190 @@
+@import "tailwindcss";
+
+@source "../../**/*.{html,htmx,cs}";
+@source "../../src/**/!(*.g).cs";
+
+@theme {
+    --color-background: hsl(var(--background));
+    --color-foreground: hsl(var(--foreground));
+
+    --color-card: hsl(var(--card));
+    --color-card-foreground: hsl(var(--card-foreground));
+
+    --color-popover: hsl(var(--popover));
+    --color-popover-foreground: hsl(var(--popover-foreground));
+
+    --color-primary: hsl(var(--primary));
+    --color-primary-foreground: hsl(var(--primary-foreground));
+
+    --color-secondary: hsl(var(--secondary));
+    --color-secondary-foreground: hsl(var(--secondary-foreground));
+
+    --color-muted: hsl(var(--muted));
+    --color-muted-foreground: hsl(var(--muted-foreground));
+
+    --color-accent: hsl(var(--accent));
+    --color-accent-foreground: hsl(var(--accent-foreground));
+
+    --color-destructive: hsl(var(--destructive));
+    --color-destructive-foreground: hsl(var(--destructive-foreground));
+
+    --color-border: hsl(var(--border));
+    --color-input: hsl(var(--input));
+    --color-ring: hsl(var(--ring));
+
+    --radius-lg: var(--radius);
+    --radius-md: calc(var(--radius) - 2px);
+    --radius-sm: calc(var(--radius) - 4px);
+}
+
+@layer base {
+    :root {
+        --background: 0 0% 100%;
+        --foreground: 222.2 84% 4.9%;
+        --card: 0 0% 100%;
+        --card-foreground: 222.2 84% 4.9%;
+        --popover: 0 0% 100%;
+        --popover-foreground: 222.2 84% 4.9%;
+        --primary: 222.2 47.4% 11.2%;
+        --primary-foreground: 210 40% 98%;
+        --secondary: 210 40% 96.1%;
+        --secondary-foreground: 222.2 47.4% 11.2%;
+        --muted: 210 40% 96.1%;
+        --muted-foreground: 215.4 16.3% 46.9%;
+        --accent: 210 40% 96.1%;
+        --accent-foreground: 222.2 47.4% 11.2%;
+        --destructive: 0 84.2% 60.2%;
+        --destructive-foreground: 210 40% 98%;
+        --border: 214.3 31.8% 91.4%;
+        --input: 214.3 31.8% 91.4%;
+        --ring: 222.2 84% 4.9%;
+        --radius: 0.5rem;
+    }
+
+    .dark {
+        --background: 222.2 84% 4.9%;
+        --foreground: 210 40% 98%;
+        --card: 222.2 84% 4.9%;
+        --card-foreground: 210 40% 98%;
+        --popover: 222.2 84% 4.9%;
+        --popover-foreground: 210 40% 98%;
+        --primary: 210 40% 98%;
+        --primary-foreground: 222.2 47.4% 11.2%;
+        --secondary: 217.2 32.6% 17.5%;
+        --secondary-foreground: 210 40% 98%;
+        --muted: 217.2 32.6% 17.5%;
+        --muted-foreground: 215 20.2% 65.1%;
+        --accent: 217.2 32.6% 17.5%;
+        --accent-foreground: 210 40% 98%;
+        --destructive: 0 62.8% 30.6%;
+        --destructive-foreground: 210 40% 98%;
+        --border: 217.2 32.6% 17.5%;
+        --input: 217.2 32.6% 17.5%;
+        --ring: 212.7 26.8% 83.9%;
+    }
+}
+
+@layer base {
+    * {
+        @apply border-border;
+    }
+
+    body {
+        @apply bg-background text-foreground;
+    }
+}
+
+/* ── Calendar component ───────────────────────────────────────────────── */
+@layer components {
+    .cal-dow {
+        @apply text-xs font-medium text-muted-foreground py-1;
+    }
+
+    .cal-day {
+        @apply h-9 w-full rounded-md text-sm text-center
+               text-foreground bg-transparent
+               hover:bg-accent hover:text-accent-foreground
+               focus-visible:outline-none focus-visible:ring-2 focus-visible:ring-ring
+               transition-colors cursor-pointer;
+    }
+
+    .cal-day-selected {
+        @apply bg-primary text-primary-foreground hover:bg-primary hover:text-primary-foreground;
+    }
+
+    .cal-day-today {
+        @apply font-semibold underline underline-offset-2;
+    }
+
+    .cal-nav {
+        @apply text-lg leading-none;
+    }
+
+    /* ── Month / year quick-pick grid ── */
+    .cal-view-btn {
+        @apply h-9 w-full rounded-md text-sm text-center
+               text-foreground bg-transparent
+               hover:bg-accent hover:text-accent-foreground
+               focus-visible:outline-none focus-visible:ring-2 focus-visible:ring-ring
+               transition-colors cursor-pointer;
+    }
+
+    .cal-view-btn-selected {
+        @apply bg-primary text-primary-foreground hover:bg-primary hover:text-primary-foreground;
+    }
+
+    /* ── CalendarRange day states ── */
+    .calr-day {
+        @apply h-9 w-full text-sm text-center text-foreground
+               transition-colors cursor-pointer focus-visible:outline-none
+               focus-visible:ring-2 focus-visible:ring-ring;
+    }
+
+    /* Plain days (no range involvement) */
+    .calr-day-plain {
+        @apply rounded-md hover:bg-accent hover:text-accent-foreground;
+    }
+
+    /* Start cap — primary, rounded left only */
+    .calr-day-start {
+        @apply rounded-l-md bg-primary text-primary-foreground
+               hover:bg-primary;
+    }
+
+    /* End cap — primary, rounded right only */
+    .calr-day-end {
+        @apply rounded-r-md bg-primary text-primary-foreground
+               hover:bg-primary;
+    }
+
+    /* Days strictly between start and end */
+    .calr-day-mid {
+        @apply rounded-none bg-accent text-accent-foreground
+               hover:bg-accent;
+    }
+}
+
+/* ── Select – custom caret via background SVG ─────────────────────────── */
+@layer components {
+    select.appearance-none {
+        background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' viewBox='0 0 24 24' fill='none' stroke='%236b7280' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpolyline points='6 9 12 15 18 9'/%3E%3C/svg%3E");
+        background-repeat: no-repeat;
+        background-position: right 0.75rem center;
+        padding-right: 2.25rem;
+    }
+}
+
+/* ── TimePicker – hide number spinner arrows ──────────────────────────── */
+@layer utilities {
+    input[type=number].timepicker-hour,
+    input[type=number].timepicker-minute {
+        -moz-appearance: textfield;
+    }
+    input[type=number].timepicker-hour::-webkit-outer-spin-button,
+    input[type=number].timepicker-hour::-webkit-inner-spin-button,
+    input[type=number].timepicker-minute::-webkit-outer-spin-button,
+    input[type=number].timepicker-minute::-webkit-inner-spin-button {
+        -webkit-appearance: none;
+        margin: 0;
+    }
+}

Htmx.ApiDemo/publish-test/wwwroot/js/components.js

@@ -0,0 +1,717 @@
+/* ─────────────────────────────────────────────────────────────────────────
+ * components.js  –  client-side logic for htmx server-rendered components
+ * ───────────────────────────────────────────────────────────────────────── */
+
+// ── Calendar ──────────────────────────────────────────────────────────────
+
+(function () {
+  var MONTHS = [
+    'January', 'February', 'March', 'April', 'May', 'June',
+    'July', 'August', 'September', 'October', 'November', 'December'
+  ];
+
+  function renderCalendar(root) {
+    var view  = root.dataset.view  || 'days';
+    var year  = parseInt(root.dataset.year,     10);
+    var month = parseInt(root.dataset.month,    10);
+    var selD  = parseInt(root.dataset.selDay,   10);
+    var selM  = parseInt(root.dataset.selMonth, 10);
+    var selY  = parseInt(root.dataset.selYear,  10);
+
+    var labelBtn = root.querySelector('.cal-month-label');
+    var grid     = root.querySelector('.cal-grid');
+    var dowRow   = root.querySelector('.cal-dow-row');
+
+    // ── Update header label based on view ──
+    if (view === 'days') {
+      labelBtn.textContent = MONTHS[month] + ' ' + year;
+    } else if (view === 'months') {
+      labelBtn.textContent = year;
+    } else { // years
+      var ds = Math.floor(year / 12) * 12;
+      labelBtn.textContent = ds + ' – ' + (ds + 11);
+    }
+
+    // Show DOW row only in day view
+    if (dowRow) dowRow.style.display = view === 'days' ? '' : 'none';
+
+    grid.innerHTML = '';
+
+    if (view === 'days') {
+      grid.style.gridTemplateColumns = '';  // let CSS class (grid-cols-7) take over
+
+      var firstDay    = new Date(year, month, 1).getDay();
+      var daysInMonth = new Date(year, month + 1, 0).getDate();
+
+      for (var i = 0; i < firstDay; i++) {
+        grid.appendChild(document.createElement('div'));
+      }
+
+      for (var d = 1; d <= daysInMonth; d++) {
+        var btn       = document.createElement('button');
+        btn.type      = 'button';
+        btn.textContent = d;
+        btn.className = 'cal-day';
+
+        if (d === selD && month === selM && year === selY) {
+          btn.classList.add('cal-day-selected');
+        }
+
+        btn.dataset.date = year + '-'
+          + String(month + 1).padStart(2, '0') + '-'
+          + String(d).padStart(2, '0');
+
+        btn.addEventListener('click', (function (b, r) {
+          return function () {
+            var parts = b.dataset.date.split('-');
+            r.dataset.selYear  = parts[0];
+            r.dataset.selMonth = parseInt(parts[1], 10) - 1;
+            r.dataset.selDay   = parseInt(parts[2], 10);
+            r.querySelectorAll('.cal-day').forEach(function (el) {
+              el.classList.remove('cal-day-selected');
+            });
+            b.classList.add('cal-day-selected');
+            r.querySelector('.cal-hidden-input').value = b.dataset.date;
+            r.dispatchEvent(new CustomEvent('calendarChange', {
+              detail: { date: b.dataset.date },
+              bubbles: true
+            }));
+          };
+        })(btn, root));
+
+        grid.appendChild(btn);
+      }
+
+    } else if (view === 'months') {
+      grid.style.gridTemplateColumns = 'repeat(3, minmax(0, 1fr))';
+
+      MONTHS.forEach(function (name, i) {
+        var btn = document.createElement('button');
+        btn.type = 'button';
+        btn.textContent = name.slice(0, 3);
+        btn.className = 'cal-view-btn' + (i === month ? ' cal-view-btn-selected' : '');
+        btn.addEventListener('click', function () {
+          root.dataset.month = i;
+          root.dataset.view  = 'days';
+          renderCalendar(root);
+        });
+        grid.appendChild(btn);
+      });
+
+    } else { // years
+      var decadeStart = Math.floor(year / 12) * 12;
+      grid.style.gridTemplateColumns = 'repeat(3, minmax(0, 1fr))';
+
+      for (var yi = 0; yi < 12; yi++) {
+        (function (y) {
+          var btn = document.createElement('button');
+          btn.type = 'button';
+          btn.textContent = y;
+          btn.className = 'cal-view-btn' + (y === year ? ' cal-view-btn-selected' : '');
+          btn.addEventListener('click', function () {
+            root.dataset.year = y;
+            root.dataset.view = 'months';
+            renderCalendar(root);
+          });
+          grid.appendChild(btn);
+        })(decadeStart + yi);
+      }
+    }
+  }
+
+  function initCalendar(root) {
+    root.querySelector('.cal-prev').addEventListener('click', function () {
+      var view = root.dataset.view || 'days';
+      var m    = parseInt(root.dataset.month, 10);
+      var y    = parseInt(root.dataset.year,  10);
+      if (view === 'days') {
+        if (m === 0) { m = 11; y--; } else { m--; }
+        root.dataset.month = m;
+        root.dataset.year  = y;
+      } else if (view === 'months') {
+        root.dataset.year = y - 1;
+      } else { // years
+        root.dataset.year = Math.floor(y / 12) * 12 - 12;
+      }
+      renderCalendar(root);
+    });
+
+    root.querySelector('.cal-next').addEventListener('click', function () {
+      var view = root.dataset.view || 'days';
+      var m    = parseInt(root.dataset.month, 10);
+      var y    = parseInt(root.dataset.year,  10);
+      if (view === 'days') {
+        if (m === 11) { m = 0; y++; } else { m++; }
+        root.dataset.month = m;
+        root.dataset.year  = y;
+      } else if (view === 'months') {
+        root.dataset.year = y + 1;
+      } else { // years
+        root.dataset.year = Math.floor(y / 12) * 12 + 12;
+      }
+      renderCalendar(root);
+    });
+
+    root.querySelector('.cal-month-label').addEventListener('click', function () {
+      var view = root.dataset.view || 'days';
+      if (view === 'days')        root.dataset.view = 'months';
+      else if (view === 'months') root.dataset.view = 'years';
+      // already at years — nothing deeper
+      renderCalendar(root);
+    });
+
+    renderCalendar(root);
+  }
+
+  // Initialise all calendars on page load, and again after any htmx swap
+  function initAll() {
+    document.querySelectorAll('.calendar-root').forEach(initCalendar);
+  }
+
+  document.addEventListener('DOMContentLoaded', initAll);
+  document.addEventListener('htmx:afterSwap',   initAll);
+})();
+
+
+// ── CalendarRange ─────────────────────────────────────────────────────────
+
+(function () {
+  var MONTHS = [
+    'January', 'February', 'March', 'April', 'May', 'June',
+    'July', 'August', 'September', 'October', 'November', 'December'
+  ];
+
+  function cmpDate(a, b) { return a < b ? -1 : a > b ? 1 : 0; }
+
+  function isBetween(d, start, end) {
+    return cmpDate(d, start) > 0 && cmpDate(d, end) < 0;
+  }
+
+  function toDateStr(year, month, day) {
+    return year + '-'
+      + String(month + 1).padStart(2, '0') + '-'
+      + String(day).padStart(2, '0');
+  }
+
+  function updateLabel(root) {
+    var lbl   = root.querySelector('.calr-label');
+    if (!lbl) return;
+    var start = root.dataset.start;
+    var end   = root.dataset.end;
+    if (start && end)   { lbl.textContent = start + '  →  ' + end; return; }
+    if (start)          { lbl.textContent = start + '  →  pick end date'; return; }
+    lbl.textContent = '';
+  }
+
+  // Only updates CSS classes on already-rendered buttons — no DOM destruction.
+  function updateHoverClasses(root, hoverDate) {
+    var start = root.dataset.start;
+    var end   = root.dataset.end;
+    var rangeEnd = (start && !end && hoverDate && cmpDate(hoverDate, start) >= 0)
+      ? hoverDate : end;
+
+    root.querySelectorAll('.calr-day').forEach(function (btn) {
+      var ds = btn.dataset.date;
+      var isStart    = !!(start && ds === start);
+      var isEnd      = !!(end   && ds === end);
+      var isHoverEnd = !!(!end && start && hoverDate && ds === hoverDate
+                          && cmpDate(hoverDate, start) > 0);
+      var isMid      = !!(start && rangeEnd && isBetween(ds, start, rangeEnd));
+
+      btn.classList.remove('calr-day-start', 'calr-day-end', 'calr-day-mid', 'calr-day-plain');
+      if (isStart)              btn.classList.add('calr-day-start');
+      if (isEnd || isHoverEnd)  btn.classList.add('calr-day-end');
+      if (isMid)                btn.classList.add('calr-day-mid');
+      if (!isStart && !isEnd && !isHoverEnd && !isMid) btn.classList.add('calr-day-plain');
+    });
+  }
+
+  // Full re-render of the grid. Called on mount, click, and view changes.
+  function renderRange(root) {
+    var view  = root.dataset.view  || 'days';
+    var year  = parseInt(root.dataset.year,  10);
+    var month = parseInt(root.dataset.month, 10);
+    var start = root.dataset.start || '';
+    var end   = root.dataset.end   || '';
+
+    var labelBtn = root.querySelector('.calr-month-label');
+    var grid     = root.querySelector('.calr-grid');
+    var dowRow   = root.querySelector('.cal-dow-row');
+
+    // ── Update header label ──
+    if (view === 'days') {
+      labelBtn.textContent = MONTHS[month] + ' ' + year;
+    } else if (view === 'months') {
+      labelBtn.textContent = year;
+    } else { // years
+      var ds = Math.floor(year / 12) * 12;
+      labelBtn.textContent = ds + ' – ' + (ds + 11);
+    }
+
+    if (dowRow) dowRow.style.display = view === 'days' ? '' : 'none';
+
+    grid.innerHTML = '';
+
+    // ── Clear event handlers (will be reassigned per view below) ──
+    grid.onmouseover  = null;
+    grid.onmouseleave = null;
+
+    if (view === 'days') {
+      grid.style.gridTemplateColumns = '';
+
+      var firstDay    = new Date(year, month, 1).getDay();
+      var daysInMonth = new Date(year, month + 1, 0).getDate();
+
+      for (var i = 0; i < firstDay; i++) {
+        grid.appendChild(document.createElement('div'));
+      }
+
+      for (var d = 1; d <= daysInMonth; d++) {
+        var dateStr    = toDateStr(year, month, d);
+        var btn        = document.createElement('button');
+        btn.type       = 'button';
+        btn.textContent = d;
+        btn.dataset.date = dateStr;
+
+        var isStart = start && dateStr === start;
+        var isEnd   = end   && dateStr === end;
+        var isMid   = start && end && isBetween(dateStr, start, end);
+        var cls = 'calr-day';
+        if (isStart)      cls += ' calr-day-start';
+        else if (isEnd)   cls += ' calr-day-end';
+        else if (isMid)   cls += ' calr-day-mid';
+        else              cls += ' calr-day-plain';
+        btn.className = cls;
+
+        grid.appendChild(btn);
+      }
+
+      // Click: update state → full re-render
+      grid.onclick = function (e) {
+        var btn = e.target.closest('.calr-day');
+        if (!btn) return;
+        var ds = btn.dataset.date;
+        var s  = root.dataset.start;
+        var en = root.dataset.end;
+
+        if (!s || (s && en)) {
+          root.dataset.start = ds;
+          root.dataset.end   = '';
+        } else {
+          if (cmpDate(ds, s) > 0) {
+            root.dataset.end = ds;
+          } else if (cmpDate(ds, s) < 0) {
+            root.dataset.start = ds;
+            root.dataset.end   = '';
+          } else {
+            root.dataset.start = '';
+            root.dataset.end   = '';
+          }
+        }
+
+        root.querySelector('.calr-hidden-start').value = root.dataset.start;
+        root.querySelector('.calr-hidden-end').value   = root.dataset.end;
+        root.dispatchEvent(new CustomEvent('rangeChange', {
+          detail: { start: root.dataset.start, end: root.dataset.end },
+          bubbles: true
+        }));
+
+        renderRange(root);
+        updateLabel(root);
+      };
+
+      grid.onmouseover = function (e) {
+        var btn = e.target.closest('.calr-day');
+        if (!btn) return;
+        updateHoverClasses(root, btn.dataset.date);
+      };
+
+      grid.onmouseleave = function () {
+        updateHoverClasses(root, null);
+      };
+
+    } else if (view === 'months') {
+      grid.style.gridTemplateColumns = 'repeat(3, minmax(0, 1fr))';
+
+      MONTHS.forEach(function (name, i) {
+        var btn = document.createElement('button');
+        btn.type = 'button';
+        btn.textContent = name.slice(0, 3);
+        btn.className = 'cal-view-btn' + (i === month ? ' cal-view-btn-selected' : '');
+        btn.addEventListener('click', function () {
+          root.dataset.month = i;
+          root.dataset.view  = 'days';
+          renderRange(root);
+        });
+        grid.appendChild(btn);
+      });
+
+    } else { // years
+      var decadeStart = Math.floor(year / 12) * 12;
+      grid.style.gridTemplateColumns = 'repeat(3, minmax(0, 1fr))';
+
+      for (var yi = 0; yi < 12; yi++) {
+        (function (y) {
+          var btn = document.createElement('button');
+          btn.type = 'button';
+          btn.textContent = y;
+          btn.className = 'cal-view-btn' + (y === year ? ' cal-view-btn-selected' : '');
+          btn.addEventListener('click', function () {
+            root.dataset.year = y;
+            root.dataset.view = 'months';
+            renderRange(root);
+          });
+          grid.appendChild(btn);
+        })(decadeStart + yi);
+      }
+    }
+  }
+
+  function initCalendarRange(root) {
+    root.querySelector('.calr-prev').addEventListener('click', function () {
+      var view = root.dataset.view || 'days';
+      var m    = parseInt(root.dataset.month, 10);
+      var y    = parseInt(root.dataset.year,  10);
+      if (view === 'days') {
+        if (m === 0) { m = 11; y--; } else { m--; }
+        root.dataset.month = m;
+        root.dataset.year  = y;
+      } else if (view === 'months') {
+        root.dataset.year = y - 1;
+      } else { // years
+        root.dataset.year = Math.floor(y / 12) * 12 - 12;
+      }
+      renderRange(root);
+    });
+
+    root.querySelector('.calr-next').addEventListener('click', function () {
+      var view = root.dataset.view || 'days';
+      var m    = parseInt(root.dataset.month, 10);
+      var y    = parseInt(root.dataset.year,  10);
+      if (view === 'days') {
+        if (m === 11) { m = 0; y++; } else { m++; }
+        root.dataset.month = m;
+        root.dataset.year  = y;
+      } else if (view === 'months') {
+        root.dataset.year = y + 1;
+      } else { // years
+        root.dataset.year = Math.floor(y / 12) * 12 + 12;
+      }
+      renderRange(root);
+    });
+
+    root.querySelector('.calr-month-label').addEventListener('click', function () {
+      var view = root.dataset.view || 'days';
+      if (view === 'days')        root.dataset.view = 'months';
+      else if (view === 'months') root.dataset.view = 'years';
+      renderRange(root);
+    });
+
+    renderRange(root);
+    updateLabel(root);
+  }
+
+  function initAll() {
+    document.querySelectorAll('.calr-root').forEach(initCalendarRange);
+  }
+
+  document.addEventListener('DOMContentLoaded', initAll);
+  document.addEventListener('htmx:afterSwap',   initAll);
+})();
+
+
+// ── TimePicker ────────────────────────────────────────────────────────────
+
+(function () {
+  function syncTime(root) {
+    var h      = parseInt(root.querySelector('.timepicker-hour').value,   10) || 0;
+    var m      = parseInt(root.querySelector('.timepicker-minute').value, 10) || 0;
+    var use12h = root.dataset.use12h === 'true';
+    var h24    = h;
+
+    if (use12h) {
+      var ampmEl = root.querySelector('.timepicker-ampm');
+      var ampm   = ampmEl ? ampmEl.value : 'AM';
+      if (ampm === 'PM') { h24 = h === 12 ? 12 : h + 12; }
+      else               { h24 = h === 12 ? 0  : h;      }
+    }
+
+    root.querySelector('.timepicker-hidden').value =
+      String(h24).padStart(2, '0') + ':' + String(m).padStart(2, '0');
+  }
+
+  function initTimePicker(root) {
+    var sync = syncTime.bind(null, root);
+    root.querySelector('.timepicker-hour').addEventListener('input', sync);
+    root.querySelector('.timepicker-minute').addEventListener('input', sync);
+    var ampmEl = root.querySelector('.timepicker-ampm');
+    if (ampmEl) ampmEl.addEventListener('change', sync);
+    sync();
+  }
+
+  function initAll() {
+    document.querySelectorAll('.timepicker-root').forEach(initTimePicker);
+  }
+
+  document.addEventListener('DOMContentLoaded', initAll);
+  document.addEventListener('htmx:afterSwap',   initAll);
+})();
+
+
+// ── Switch ────────────────────────────────────────────────────────────────
+
+(function () {
+  function updateSwitch(input) {
+    var track = input.parentElement && input.parentElement.querySelector('.switch-track');
+    if (!track) return;
+    var thumb = track.querySelector('.switch-thumb');
+    if (input.checked) {
+      track.classList.add('bg-primary');
+      track.classList.remove('bg-input');
+      if (thumb) thumb.style.transform = 'translateX(1.375rem)';
+    } else {
+      track.classList.remove('bg-primary');
+      track.classList.add('bg-input');
+      if (thumb) thumb.style.transform = '';
+    }
+  }
+
+  function initAll() {
+    document.querySelectorAll('.switch-checkbox').forEach(function (input) {
+      updateSwitch(input);
+      if (!input._switchBound) {
+        input._switchBound = true;
+        input.addEventListener('change', function () { updateSwitch(input); });
+      }
+    });
+  }
+
+  document.addEventListener('DOMContentLoaded', initAll);
+  document.addEventListener('htmx:afterSwap',   initAll);
+})();
+
+
+// ── Tabs ──────────────────────────────────────────────────────────────────
+
+(function () {
+  var ACTIVE   = 'bg-background text-foreground shadow-sm';
+  var INACTIVE = 'text-muted-foreground';
+
+  function initTabs(root) {
+    if (root._tabsInitialised) return;
+    root._tabsInitialised = true;
+
+    var triggers = Array.from(root.querySelectorAll('.tabs-trigger'));
+    var panels   = Array.from(root.querySelectorAll('.tabs-panel'));
+
+    function activate(idx) {
+      triggers.forEach(function (t, i) {
+        var active = i === idx;
+        t.setAttribute('aria-selected', String(active));
+        ACTIVE.split(' ').forEach(function (c) { t.classList.toggle(c, active); });
+        INACTIVE.split(' ').forEach(function (c) { t.classList.toggle(c, !active); });
+      });
+      panels.forEach(function (p, i) { p.hidden = i !== idx; });
+    }
+
+    triggers.forEach(function (trigger, idx) {
+      trigger.addEventListener('click', function () { activate(idx); });
+    });
+    activate(0);
+  }
+
+  function initAll() {
+    document.querySelectorAll('.tabs-root').forEach(initTabs);
+  }
+
+  document.addEventListener('DOMContentLoaded', initAll);
+  document.addEventListener('htmx:afterSwap',   initAll);
+})();
+
+
+// ── Accordion ─────────────────────────────────────────────────────────────
+
+(function () {
+  function initAccordion(root) {
+    if (root._accInitialised) return;
+    root._accInitialised = true;
+
+    root.querySelectorAll('.accordion-trigger').forEach(function (trigger) {
+      trigger.addEventListener('click', function () {
+        var expanded = trigger.getAttribute('aria-expanded') === 'true';
+        var panel    = trigger.closest('.accordion-item').querySelector('.accordion-panel');
+        if (expanded) {
+          trigger.setAttribute('aria-expanded', 'false');
+          panel.style.height  = '0';
+          panel.style.opacity = '0';
+        } else {
+          trigger.setAttribute('aria-expanded', 'true');
+          panel.style.height  = panel.scrollHeight + 'px';
+          panel.style.opacity = '1';
+        }
+        var chevron = trigger.querySelector('.accordion-chevron');
+        if (chevron) chevron.style.transform = expanded ? '' : 'rotate(180deg)';
+      });
+    });
+  }
+
+  function initAll() {
+    document.querySelectorAll('.accordion-root').forEach(initAccordion);
+  }
+
+  document.addEventListener('DOMContentLoaded', initAll);
+  document.addEventListener('htmx:afterSwap',   initAll);
+})();
+
+
+// ── Toast ─────────────────────────────────────────────────────────────────
+
+(function () {
+  function dismissToast(toast) {
+    toast.style.opacity   = '0';
+    toast.style.transform = 'translateY(0.5rem)';
+    setTimeout(function () { if (toast.parentNode) toast.parentNode.removeChild(toast); }, 300);
+  }
+
+  window.showToast = function (options) {
+    var viewport = document.querySelector('.toast-viewport');
+    if (!viewport) return;
+
+    var title       = options.title       || '';
+    var description = options.description || '';
+    var variant     = options.variant     || 'default';
+    var duration    = typeof options.duration === 'number' ? options.duration : 5000;
+
+    var variantCls = variant === 'destructive' ? ' border-destructive text-destructive' : '';
+
+    var toast = document.createElement('div');
+    toast.setAttribute('role', 'alert');
+    toast.className = 'toast-item pointer-events-auto relative flex w-full items-center justify-between' +
+      ' space-x-4 overflow-hidden rounded-md border border-border bg-background p-4' +
+      ' shadow-lg transition-all duration-300 opacity-0 translate-y-2' + variantCls;
+
+    toast.innerHTML =
+      '<div class="grid gap-1">' +
+        (title       ? '<div class="text-sm font-semibold">'  + title       + '</div>' : '') +
+        (description ? '<div class="text-sm opacity-90">'     + description + '</div>' : '') +
+      '</div>' +
+      '<button type="button" aria-label="Dismiss"' +
+        ' class="toast-close inline-flex h-8 w-8 shrink-0 items-center justify-center rounded-md' +
+        ' text-muted-foreground hover:text-foreground focus:outline-none">' +
+        '<svg class="h-4 w-4" xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24" fill="none"' +
+        ' stroke="currentColor" stroke-width="2" stroke-linecap="round" stroke-linejoin="round">' +
+        '<path d="M18 6 6 18"/><path d="m6 6 12 12"/></svg>' +
+      '</button>';
+
+    viewport.appendChild(toast);
+
+    requestAnimationFrame(function () {
+      toast.classList.remove('opacity-0', 'translate-y-2');
+    });
+
+    var timer = duration > 0 ? setTimeout(function () { dismissToast(toast); }, duration) : null;
+
+    toast.querySelector('.toast-close').addEventListener('click', function () {
+      if (timer) clearTimeout(timer);
+      dismissToast(toast);
+    });
+  };
+
+  // Delegate clicks on server-rendered toast close buttons
+  document.addEventListener('click', function (e) {
+    var btn = e.target.closest('.toast-close');
+    if (btn) {
+      var item = btn.closest('.toast-item');
+      if (item) dismissToast(item);
+    }
+  });
+
+  document.addEventListener('keydown', function (e) {
+    var trigger = e.target.closest('.dropdown-trigger');
+    if (!trigger) return;
+    if (e.key !== 'Enter' && e.key !== ' ') return;
+
+    e.preventDefault();
+    var root = trigger.closest('.dropdown-root');
+    var content = root && root.querySelector('.dropdown-content');
+    var isOpen = content && !content.classList.contains('hidden');
+
+    document.querySelectorAll('.dropdown-root').forEach(closeDropdown);
+    if (!isOpen && root) openDropdown(root);
+  });
+})();
+
+
+// ── Dialog ────────────────────────────────────────────────────────────────
+
+(function () {
+  document.addEventListener('click', function (e) {
+    // Open
+    var openBtn = e.target.closest('[data-dialog-open]');
+    if (openBtn) {
+      var dlg = document.getElementById('dlg-' + openBtn.dataset.dialogOpen);
+      if (dlg && dlg.showModal) dlg.showModal();
+    }
+    // Close via button
+    var closeBtn = e.target.closest('[data-dialog-close], .dialog-close');
+    if (closeBtn) {
+      var dlg = closeBtn.closest('dialog');
+      if (dlg) dlg.close();
+    }
+  });
+
+  // Close on backdrop click
+  document.addEventListener('click', function (e) {
+    if (e.target && e.target.tagName === 'DIALOG') {
+      e.target.close();
+    }
+  });
+})();
+
+
+// ── DropdownMenu ──────────────────────────────────────────────────────────
+
+(function () {
+  function closeDropdown(root) {
+    var trigger = root.querySelector('.dropdown-trigger');
+    var content = root.querySelector('.dropdown-content');
+    if (!trigger || !content) return;
+    content.classList.add('hidden');
+    trigger.setAttribute('aria-expanded', 'false');
+  }
+
+  function openDropdown(root) {
+    var trigger = root.querySelector('.dropdown-trigger');
+    var content = root.querySelector('.dropdown-content');
+    if (!trigger || !content) return;
+    content.classList.remove('hidden');
+    trigger.setAttribute('aria-expanded', 'true');
+  }
+
+  document.addEventListener('click', function (e) {
+    var trigger = e.target.closest('.dropdown-trigger');
+    if (trigger) {
+      var root = trigger.closest('.dropdown-root');
+      var content = root && root.querySelector('.dropdown-content');
+      var isOpen = content && !content.classList.contains('hidden');
+
+      document.querySelectorAll('.dropdown-root').forEach(closeDropdown);
+      if (!isOpen && root) openDropdown(root);
+      return;
+    }
+
+    var insideMenu = e.target.closest('.dropdown-content');
+    if (insideMenu) {
+      var rootInMenu = insideMenu.closest('.dropdown-root');
+      if (e.target.closest('a, button') && rootInMenu) {
+        closeDropdown(rootInMenu);
+      }
+      return;
+    }
+
+    document.querySelectorAll('.dropdown-root').forEach(function (root) {
+      if (!root.contains(e.target)) closeDropdown(root);
+    });
+  });
+})();
+

Htmx.ApiDemo/rd.xml

@@ -0,0 +1,17 @@
+<Directives xmlns="http://schemas.microsoft.com/netfx/2013/01/metadata">
+  <!--
+    NativeAOT runtime directives.
+    1. MongoDB.Bson: preserve all serializer constructors used via reflection.
+    2. Htmx.ApiDemo: preserve constructors of Query/Command types so that
+       the runtime RequestDelegateFactory can bind [AsParameters] parameters.
+    3. Microsoft.Extensions.Primitives: preserve StringValues coercion operators
+       used by RequestDelegateFactory expression trees (StringValues → string).
+    4. System.Private.CoreLib primitive types: preserve TryParse methods used
+       by RequestDelegateFactory to bind route/query values.
+  -->
+  <Application>
+    <Assembly Name="MongoDB.Bson"                    Dynamic="Required All" />
+    <Assembly Name="Htmx.ApiDemo"                    Dynamic="Required All" />
+    <Assembly Name="Microsoft.Extensions.Primitives" Dynamic="Required All" />
+  </Application>
+</Directives>

Htmx.SourceGenerator/HtmxGenerator.cs

@@ -25,6 +25,8 @@ namespace Htmx.SourceGenerator
 using System;
 using System.Buffers;
 using System.Runtime.CompilerServices;
+using System.Threading.Tasks;
+using Microsoft.AspNetCore.Http;
 
 namespace {opt.RootNamespace};
 
@@ -67,12 +69,8 @@ public static class HtmxGeneratedExtensions
         writer.Advance(data.Length);
     }}
 
-    public static void WriteHtmxBody(this HttpContext context, IHtmxComponent component)
+    public static HtmxResult WriteHtmxBody(this HttpContext context, IHtmxComponent component)
-    {{
+        => new HtmxResult(component);
-        context.Response.ContentType = ""text/html; charset=utf-8"";
-        var writerContext = new HtmxRenderContext(context.Response.BodyWriter);
-        component.Render(writerContext);
-    }}
 }}";
                 spc.AddSource("HtmxInfrastructure.g.cs", SourceText.From(infrastructureSource, Encoding.UTF8));
             });