我正在使用PDFKit生成 PDF。我正在使用 Nodejitsu 进行托管,所以我无法将 PDF 保存到文件中,但我可以将它们保存到可读流中。我想将该流附加到 Sendgrid 电子邮件中,如下所示:
sendgrid.send({
to: email,
files: [{ filename: 'File.pdf', content: /* what to put here? */ }]
/* ... */
});
我试过doc.output()无济于事。
我正在使用PDFKit生成 PDF。我正在使用 Nodejitsu 进行托管,所以我无法将 PDF 保存到文件中,但我可以将它们保存到可读流中。我想将该流附加到 Sendgrid 电子邮件中,如下所示:
sendgrid.send({
to: email,
files: [{ filename: 'File.pdf', content: /* what to put here? */ }]
/* ... */
});
我试过doc.output()无济于事。
要将 SendGrid nodejs API 与流文件一起使用,只需将流转换为缓冲区。您可以使用流到数组将可读流转换为缓冲区。
var streamToArray = require('stream-to-array');
streamToArray(your_stream, function (err, arr) {
var buffer = Buffer.concat(arr)
sendgrid.send({
to: email,
files: [{ filename: 'File.pdf' content: buffer }]
})
})
尝试通过streamToArray包发送流并将其编码为 base64。(没有base64编码,Sendgrid会抛出no content string的错误)
// createPdf() module returns the doc stream
// styling etc etc
doc.end()
return doc // then once doc.end() is called, return the stream
const sgMail = require('@sendgrid/mail');
const streamToArray = require('stream-to-array');
streamToArray(createPdf(), function (err, arr) { // createPdf() returns the doc made by pdfKit
var buffer = Buffer.concat(arr).toString('base64')
msg["subject"] = 'Here is your attachment'
msg["html"] = body // your html for your email, could use text instead
msg["attachments"] = [{
filename: 'attachment.pdf',
content: buffer,
type: 'application/pdf',
disposition: 'attachment'
}]
sgMail.send(msg) // sendgrid
})
我最近自己在这个问题上苦苦挣扎,我只想分享对我有用的东西:
//PdfKit
var doc = new PDFDocument({
size: 'letter'
});
doc.text('My awesome text');
doc.end();
//Sendgrid API
var email = new sendgrid.Email();
email.addTo ('XXX@gmail.com');
email.setFrom ('XXX@gmail.com');
email.setSubject ('Report');
email.setText ('Check out this awesome pdf');
email.addFile ({
filename: project.name + '.pdf',
content: doc,
contentType: 'application/pdf'
});
sendgrid.send(email, function(err, json){
if(err) {return console.error(err);}
console.log(json);
});
关键是使文件附件中的内容成为“doc”