Create PDF Rendering service in Azure Functions

readme.md

To test this function in the azure portal you simply need to post some HTML in the request body. For example:

<title>Title</title> Body text... "

function.json

{
  "bindings": [
    {
      "authLevel": "function",
      "name": "req",
      "type": "httpTrigger",
      "direction": "in"
    },
    {
      "name": "$return",
      "type": "http",
      "direction": "out"
    }
  ],
  "disabled": false
}

project.json

{
  "frameworks": {
    "net46":{
      "dependencies": {
        "OpenHtmlToPdf": "1.12.0"
      }
    }
   }
}

run.csx

using System.Net;
using System.Net.Http.Headers;
using OpenHtmlToPdf;

public static async Task<HttpResponseMessage> Run(HttpRequestMessage req, TraceWriter log)
{
    log.Info("Processing PDF Request");

    string html = await req.Content.ReadAsStringAsync();

    var pdf = Pdf
        .From(html)
        .Content();

    log.Info($"PDF Generated. Length={pdf.Length}");

    var res = new HttpResponseMessage(HttpStatusCode.OK);
        res.Content = new ByteArrayContent(pdf);
        res.Content.Headers.ContentType = new MediaTypeHeaderValue("application/pdf");
        res.Content.Headers.ContentDisposition = new ContentDispositionHeaderValue("inline");

    return res;
}