问题描述
我曾尝试在部署在 AWS lambda 的代码中实现 html-pdf 包,但即使在我部署了 层 用于 lambda 上的 html-pdf 包。 下面是我的代码:
import pdf from 'html-pdf';
import AWS from 'aws-sdk';
var S3 = new AWS.S3();
process.env.PATH = `${process.env.PATH}:/opt`;
process.env.FONTCONfig_PATH = "/opt";
process.env.LD_LIBRARY_PATH = "/opt";
export const convertToPDFandUpload = async (attachmentFile,empCertificate) => {
let file;
let params;
var options = {
height: "590px",width: "800px",phantomPath: '/opt/phantomjs_linux-x86_64'
};
return new Promise((resolve,reject) => {
pdf.create(attachmentFile,options).toBuffer(function (err,res) {
if (err)
console.log(err);
file = res;
params = {
Bucket: <my_bucket_name>,Key: `certificate/${empCertificate.candidateName}${empCertificate.certificateID}.pdf`,Body: file,ACL: 'public-read'
};
S3.upload(params,async function (err,data) {
if (err) {
console.log(err,err.stack);
reject(null);
} else {
resolve(data.Location);
}
});
});
});
};
错误: { "errorType": "TypeError","errorMessage": "无法读取未定义的属性 'filename'",“堆”: [ “类型错误:无法读取未定义的属性‘文件名’”, “在 execPdfToBuffer (/var/task/apis/webpack:/home/nikhilsrivastva/Desktop/HR Onboarding/onboarding BE/hronboardingcodebase/services/certification/node_modules/html-pdf/lib/pdf.js:48:1)”, " 在 ChildProcess.respond (/var/task/apis/webpack:/home/nikhilsrivastva/Desktop/HR Onboarding/onboarding BE/hronboardingcodebase/services/certification/node_modules/html-pdf/lib/pdf.js:144:1) ”, " 在 ChildProcess.emit (events.js:314:20)"," 在 ChildProcess.EventEmitter.emit (domain.js:483:12)",“在 Process.ChildProcess._handle.onexit (internal/child_process.js:276:12)” ] }
解决方法
层 zip 文件必须包含一个名为“nodejs”的文件夹,并且该文件夹必须包含具有您的依赖项的“node_modules”文件夹。在此处查看确切结构:https://docs.aws.amazon.com/lambda/latest/dg/configuration-layers.html#configuration-layers-path
适用于 Node.js 的 AWS X-Ray 开发工具包的示例文件结构
`xray-sdk.zip
└ nodejs/node_modules/aws-xray-sdk`
这样您就可以验证您的层 zip 文件是否具有正确的结构。