在 Firebase Cloud Functions 中创建 PDF [英] Create PDF in Firebase Cloud Functions

问题描述

我是 javascript 新手，我正在尝试使用 pdfkit 从 firebase 函数制作 PDF 文件.下面是我的功能代码.

I am new to javascript and I'm trying to make a PDF file from a firebase function using pdfkit. Below is my function code.

const pdfkit = require('pdfkit');
const fs = require('fs');

exports.PDFTest = functions.https.onRequest((req, res) => {

var doc = new pdfkit();

var loremIpsum = 'Lorem ipsum dolor sit amet, consectetur adipiscing elit. Etiam in...';  

doc.y = 320;
doc.fillColor('black')
doc.text(loremIpsum, {
paragraphGap: 10,
indent: 20,
align: 'justify',
columns: 2
});  

doc.pipe( res.status(200) )

});

函数启动，但随后发生超时错误.这是在firebase中创建pdf文件的最佳方式吗?我有一些要制作成 pdf 文件的 html.

The function starts but then a timeout error happens. Is this the best way of going about creating a pdf file in firebase? I have some html that I want made into a pdf file.

推荐答案

也正在处理这个问题，为了将 PDF 保存在存储中，它的工作原理是这样的

Just working on this too, for saving the PDF in the storage it works like this

const myPdfFile = admin.storage().bucket().file('/test/Arbeitsvertrag.pdf');
const doc = new pdfkit();
const stream = doc.pipe(myPdfFile.createWriteStream());
doc.fontSize(25).text('Test 4 PDF!', 100, 100);
doc.end();

return res.status(200).send();

猜你应该等到流关闭并监听错误和事情，但这是我能够制作的第一个工作示例，现在正在研究如何将图像从存储中获取到 PDF 中.

Guess you should wait until the stream is closed and listen for Errors and Things, but this is the first working example I was able to make, now working on how to get a Image from the storage into the PDF.

这篇关于在 Firebase Cloud Functions 中创建 PDF的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！