错误：在使用 html-pdf NPM 时在 Cloud Run 上编写 EPIPE
[英]Error: write EPIPE on Cloud Run while using html-pdf NPM
问题描述
Here I was trying to convert HTML to PDF and used html-pdf npm ( https://www.npmjs.com/package/html-pdf )). 
Here I was trying to convert HTML to PDF and used html-pdf npm ( https://www.npmjs.com/package/html-pdf )). The code was running fine on local and got an issue over google cloud run.该代码在本地运行良好，但在谷歌云运行时出现问题。
Error: write EPIPE at afterWriteDispatched (internal/stream_base_commons.js:154:25) at writeGeneric (internal/stream_base_commons.js:145:3) at Socket._writeGeneric (net.js:786:11) at Socket._write (net.js:798:8) at doWrite (_stream_writable.js:403:12) at writeOrBuffer (_stream_writable.js:387:5) at Socket.Writable.write (_stream_writable.js:318:11) at PDF.PdfExec [as exec] (/usr/src/app/node_modules/html-pdf/lib/pdf.js:141:15) at PDF.PdfToBuffer [as toBuffer] (/usr/src/app/node_modules/html-pdf/lib/pdf.js:44:8) at utilities.createPDF (/usr/src/app/routes/lib/utilities.js:810:31)
Emitted 'error' event on Socket instance at:
at errorOrDestroy (internal/streams/destroy.js:108:12)
at onwriteError (_stream_writable.js:418:5)
at onwrite (_stream_writable.js:445:5)
at internal/streams/destroy.js:50:7
at Socket._destroy (net.js:679:5)
at Socket.destroy (internal/streams/destroy.js:38:8)
at afterWriteDispatched (internal/stream_base_commons.js:154:17)
at writeGeneric (internal/stream_base_commons.js:145:3)
at Socket._writeGeneric (net.js:786:11)
at Socket._write (net.js:798:8) {
errno: 'EPIPE',
code: 'EPIPE',
syscall: 'write'
This the JS code used, error occurred on pdf.create function:-这是使用的 JS 代码，在pdf.create function 上发生错误：-
var pdf = require('html-pdf');
var html = <HTML code>;
var options = {
format: 'A4',
border: {
"top": "20px",
"right": "15px",
"bottom": "15px",
"left": "12.5px"
},
};
pdf.create(html, options).toBuffer(function(err, buffer){
console.log('This is a buffer:', Buffer.isBuffer(buffer));
console.log(buffer);
2 个解决方案
解决方案1
2 2020-08-14 20:10:02
It looks like Cloud Run does not support HTML streaming , which is what I interpret the code to be doing in the error message, so it looks like that specific code might not be supported.看起来 Cloud Run不支持 HTML 流式传输，这是我在错误消息中解释要执行的代码，因此看起来可能不支持特定代码。
解决方案2
1 已采纳 2020-10-06 10:38:27
I had a discussion with NPM creator and discussed that npm uses socket programming in it.我与 NPM 创建者进行了讨论，并讨论了 npm 在其中使用套接字编程。 So on further research found the Cloud Run doesn't support internal Socket calling, which is the correct reason this is not working.所以进一步研究发现 Cloud Run 不支持内部 Socket 调用，这是它不起作用的正确原因。
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