在Firebase Cloud Functions中创建PDF

问题描述

我是javascript的新手，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) )

});

该功能启动，但随后发生超时错误.这是在Firebase中创建pdf文件的最佳方法吗?我有一些要制成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

也只需进行此操作，即可将PDF保存在存储中，

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();

猜想您应该等到流关闭后再听错误和事物"，但这是我能够制作的第一个可行示例，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.

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