chokchai/pwa_pdf_service
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Initial commit: FastReport PDF rendering sidecar

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Tiny .NET 6 web app that accepts a JSON dataset and a FastReport template
name, renders to PDF, and returns the bytes. Exists because System.Drawing
is unsupported on .NET 8 Linux even with libgdiplus, but works on .NET 6
with `System.Drawing.EnableUnixSupport=true`. The main pwa_api (.NET 8)
calls this over loopback HTTP.

Endpoints:
  POST /render        single template, returns one PDF
  POST /render/multi  array of sections, merges into one PDF
  GET  /health        liveness probe

Templates and Fonts are sourced at build time from the sibling pwa_api
project so there's a single source of truth for .frx files.

Deployed as pwa-pdf-service.service on api.pwabilling.com, listening on
127.0.0.1:7082, self-contained (no system .NET 6 runtime needed).

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
This commit is contained in:
chokchai
2026-05-04 11:40:16 +07:00
commit af48f51e4c
8 changed files with 278 additions and 0 deletions
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pwa_pdf_service.csproj Normal file
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<Project Sdk="Microsoft.NET.Sdk.Web">
<PropertyGroup>
<TargetFramework>net6.0</TargetFramework>
<Nullable>enable</Nullable>
<ImplicitUsings>enable</ImplicitUsings>
<RootNamespace>pwa_pdf_service</RootNamespace>
<AssemblyName>pwa_pdf_service</AssemblyName>
<InvariantGlobalization>false</InvariantGlobalization>
</PropertyGroup>
<ItemGroup>
<PackageReference Include="FastReport.Core" Version="2021.3.0" />
<PackageReference Include="PdfSharpCore" Version="1.3.65" />
<PackageReference Include="Newtonsoft.Json" Version="13.0.3" />
</ItemGroup>
<ItemGroup>
<!-- FastReport templates and fonts shared from main API -->
<None Include="..\pwa_api\wwwroot\reports\**\*" Link="wwwroot\reports\%(RecursiveDir)%(Filename)%(Extension)">
<CopyToOutputDirectory>PreserveNewest</CopyToOutputDirectory>
</None>
<None Include="..\pwa_api\wwwroot\documents\**\*" Link="wwwroot\documents\%(RecursiveDir)%(Filename)%(Extension)">
<CopyToOutputDirectory>PreserveNewest</CopyToOutputDirectory>
</None>
<None Include="..\pwa_api\Fonts\**\*" Link="Fonts\%(RecursiveDir)%(Filename)%(Extension)">
<CopyToOutputDirectory>PreserveNewest</CopyToOutputDirectory>
</None>
</ItemGroup>
</Project>