How to download the pdf file after generated in nodejs

Question

I'm building a web application in Node.js 10.x and angular 6.x. I wish to generate a PDF and download it via browser.

angular 6.x

generatePDF(params): any {
    return this.http.post(this.url('generatePDF'), params, this.getRequestOptions())
      .pipe(map((res: any) => {
          return res;
        })
      );
}

Node.js


async generatePDF(options = { format:'A4' }) {
   return new Promise((resolve, reject) => { ejs.renderFile(this.templateName, this.data, (err, res) => {

        if (err) {
          return reject(err);
        }
        pdf.create(res, options)
          .toFile(this.fileName,  (err, res) => {
            if (err) {
              return reject(err);
            }
            resolve(res);
          });
     });
   });
 }

Are you using expressjs? This should help you: https://stackoverflow.com/a/21788474/1906361 — Shumail, Sep 19 '19 at 18:19
Generating the PDF is working well. I want to download the pdf via Browser. — Alexander Chao, Sep 19 '19 at 19:14
If I'm not mistaken, in Chrome you can do that with native Chrome pdf reader, or you want to do that clicking on some kind of download button inside of your angular app? — trisek, Sep 19 '19 at 20:42

score 0 · Accepted Answer · answered Oct 19 '19 at 11:19

I have solved this problem as follows.

Node.js

let pdffilename = username + '_' + gameName.replace(/ /g, "_") + '.pdf'; 
pdfReport = new Report(gameName, ejsfilename, pdffilename, refined_score);  
await pdfReport.generatePDF();
res.sendFile(pdfReport.fileName);

score 0 · Answer 2 · answered Jun 16 '20 at 06:54

After Creation of PDF path , you can use the following code to download your file

  res.header('Access-Control-Allow-Origin', '*');
  res.header('Access-Control-Allow-Headers', 'X-Requested-With');
  res.header('content-type', 'application/pdf');


  res.download(PDF_PATH, PDF_NAME + '.pdf');

How to download the pdf file after generated in nodejs

2 Answers2