service-reporting/Controllers/PdfController.cs

   1 using DinkToPdf;
   2 using DinkToPdf.Contracts;
   3 using Microsoft.AspNetCore.Mvc;
   4 using System.IO;
   5 using System;
   6 using PdfService.Utility;
   7 using PdfService.Models;
   8 namespace PdfService.Controllers
   9 {
  10
  11
  12     [ApiController]
  13     public class PdfController : ControllerBase
  14     {
  15         private IConverter _converter;
  16
  17         public PdfController(IConverter converter)
  18         {
  19             _converter = converter;
  20         }
  21
  22         [Route("")]
  23         [HttpGet]
  24         public ActionResult GeneratePdfDemo()
  25         {
  26             var globalSettings = new GlobalSettings
  27             {
  28                 ColorMode = ColorMode.Color,
  29                 Orientation = Orientation.Portrait,
  30                 PaperSize = PaperKind.A4,
  31                 Margins = new MarginSettings { Top = 0, Left = 0, Right = 0 },
  32                 DocumentTitle = "PDF Demo Report",
  33             };
  34
  35             var objectSettings = new ObjectSettings
  36             {
  37                 PagesCount = true,
  38                 HtmlContent = TemplateGenerator.GetHTMLString(new Term[]{
  39                     new Term("Good Term", 0.9),
  40                     new Term("Term 1", 0.5),
  41                     new Term("Another Term", 0.3),
  42                     new Term("Another bad Tweet", 0.1)
  43                     }),
  44                 WebSettings = { DefaultEncoding = "utf-8", UserStyleSheet =  Path.Combine(Directory.GetCurrentDirectory(), "assets", "bulma.min.css") }
  45             };
  46
  47             var pdf = new HtmlToPdfDocument()
  48             {
  49                 GlobalSettings = globalSettings,
  50                 Objects = { objectSettings }
  51             };
  52
  53             var file = _converter.Convert(pdf);
  54             return File(file, "application/pdf");
  55         }
  56
  57         // GET /generatePDF
  58         [Route("generatePDF")]
  59         [HttpPost]
  60         public ActionResult GeneratePdf([FromBody] Term[] terms)
  61         {
  62             // check parameters
  63             if (!ModelState.IsValid)
  64             {
  65                 return BadRequest(ModelState);
  66             }
  67
  68             // check parameter if they have correct form
  69             foreach(Term term in terms) {
  70                 if(term.Name.Length<1 || term.Sentiment<0.0 || term.Sentiment>1.0){
  71                     return BadRequest(ModelState);
  72                 }
  73             }
  74
  75             var globalSettings = new GlobalSettings
  76             {
  77                 ColorMode = ColorMode.Color,
  78                 Orientation = Orientation.Portrait,
  79                 PaperSize = PaperKind.A4,
  80                 Margins = new MarginSettings { Top = 0, Left = 0, Right = 0 },
  81                 DocumentTitle = "PDF Report",
  82             };
  83
  84             var objectSettings = new ObjectSettings
  85             {
  86                 PagesCount = true,
  87                 HtmlContent = TemplateGenerator.GetHTMLString(terms),
  88                 WebSettings = { DefaultEncoding = "utf-8", UserStyleSheet =  Path.Combine(Directory.GetCurrentDirectory(), "assets", "bulma.min.css") }
  89             };
  90
  91             var pdf = new HtmlToPdfDocument()
  92             {
  93                 GlobalSettings = globalSettings,
  94                 Objects = { objectSettings }
  95             };
  96
  97             var file = _converter.Convert(pdf);
  98             if(Request.Headers["Accept"] == "application/base64")
  99                 return Content(Convert.ToBase64String(_converter.Convert(pdf)));
 100             else
 101                 return File(file, "application/pdf");
 102         }
 103
 104     }
 105 }