AWS Lambda错误：无法解压已上传的文件。

Question

我试图使用node.js的aws-sdk包更新lambda函数中的代码。因此，我编写了以下脚本以进行部署：

var AWS = require('aws-sdk');
AWS.config.loadFromPath('./config.json');
var lambda = new AWS.Lambda();

var params = {
    FunctionName: 'FunctionName',
    ZipFile: 'fileb://deploy_package.zip'
}

lambda.updateFunctionCode(params, function(err, data) {
    if (err) console.log(err, err.stack);
    else console.log(data);
});

问题在于当我运行脚本时，出现了以下错误：

{ InvalidParameterValueException: Could not unzip uploaded file. Please check your file, then try to upload again.
    at Object.extractError (C:\Users\jaarnold\Desktop\AlexaSkills\circleCI\node_modules\aws-sdk\lib\protocol\json.js:48:27)
    at Request.extractError (C:\Users\jaarnold\Desktop\AlexaSkills\circleCI\node_modules\aws-sdk\lib\protocol\rest_json.js:52:8)
    at Request.callListeners (C:\Users\jaarnold\Desktop\AlexaSkills\circleCI\node_modules\aws-sdk\lib\sequential_executor.js:105:20)
    at Request.emit (C:\Users\jaarnold\Desktop\AlexaSkills\circleCI\node_modules\aws-sdk\lib\sequential_executor.js:77:10)
    at Request.emit (C:\Users\jaarnold\Desktop\AlexaSkills\circleCI\node_modules\aws-sdk\lib\request.js:683:14)
    at Request.transition (C:\Users\jaarnold\Desktop\AlexaSkills\circleCI\node_modules\aws-sdk\lib\request.js:22:10)
    at AcceptorStateMachine.runTo (C:\Users\jaarnold\Desktop\AlexaSkills\circleCI\node_modules\aws-sdk\lib\state_machine.js:14:12)
    at C:\Users\jaarnold\Desktop\AlexaSkills\circleCI\node_modules\aws-sdk\lib\state_machine.js:26:10
    at Request.<anonymous> (C:\Users\jaarnold\Desktop\AlexaSkills\circleCI\node_modules\aws-sdk\lib\request.js:38:9)
    at Request.<anonymous> (C:\Users\jaarnold\Desktop\AlexaSkills\circleCI\node_modules\aws-sdk\lib\request.js:685:12)
  message: 'Could not unzip uploaded file. Please check your file, then try to upload again.',
  code: 'InvalidParameterValueException',
  time: 2018-06-18T15:09:12.212Z,
  requestId: '8ec20526-7309-11e8-aa20-4fb186ac4f30',
  statusCode: 400,
  retryable: false,
  retryDelay: 65.40106275377198 } 'InvalidParameterValueException: Could not unzip uploaded file. Please check your file, then try to upload again.\n    at Object.extractError (C:\\Users\\jaarnold\\Desktop\\AlexaSkills\\circleCI\\node_modules\\aws-sdk\\lib\\protocol\\json.js:48:27)\n    at Request.extractError (C:\\Users\\jaarnold\\Desktop\\AlexaSkills\\circleCI\\node_modules\\aws-sdk\\lib\\protocol\\rest_json.js:52:8)\n    at Request.callListeners (C:\\Users\\jaarnold\\Desktop\\AlexaSkills\\circleCI\\node_modules\\aws-sdk\\lib\\sequential_executor.js:105:20)\n    at Request.emit (C:\\Users\\jaarnold\\Desktop\\AlexaSkills\\circleCI\\node_modules\\aws-sdk\\lib\\sequential_executor.js:77:10)\n    at Request.emit (C:\\Users\\jaarnold\\Desktop\\AlexaSkills\\circleCI\\node_modules\\aws-sdk\\lib\\request.js:683:14)\n    at Request.transition (C:\\Users\\jaarnold\\Desktop\\AlexaSkills\\circleCI\\node_modules\\aws-sdk\\lib\\request.js:22:10)\n    at AcceptorStateMachine.runTo (C:\\Users\\jaarnold\\Desktop\\AlexaSkills\\circleCI\\node_modules\\aws-sdk\\lib\\state_machine.js:14:12)\n    at C:\\Users\\jaarnold\\Desktop\\AlexaSkills\\circleCI\\node_modules\\aws-sdk\\lib\\state_machine.js:26:10\n    at Request.<anonymous> (C:\\Users\\jaarnold\\Desktop\\AlexaSkills\\circleCI\\node_modules\\aws-sdk\\lib\\request.js:38:9)\n    at Request.<anonymous> (C:\\Users\\jaarnold\\Desktop\\AlexaSkills\\circleCI\\node_modules\\aws-sdk\\lib\\request.js:685:12)'

我尝试从我的电脑以及 CircleCI 部署 zip 文件，我还尝试使用 AWS CLI，但结果都一样。在 zip 文件和 config.json 文件中我都拥有需要的所有内容。这里可能出了什么问题？

- jsteele

---

根据AWS文档，参数ZipFile应该是这样的。请参考此处https://docs.aws.amazon.com/AWSJavaScriptSDK/latest/AWS/Lambda.html#updateFunctionCode-property - Vaisakh PS

Answer 1

ZipFile 需要是一个 Buffer。

这意味着你需要读取文件并将其转换为一个 Buffer 对象。

你可以使用 fs.readFile() 或者 fs.readFileSync() 来完成这个任务。

- Noel Llevares

Answer 2

您的ZipFile参数不正确，必须是一个缓冲区。尝试更改为：

<Buffer>

var fs = require('fs');

var params = {
    FunctionName: 'FunctionName',
    ZipFile: fs.readFileSync('deploy_package.zip')
}

lambda.updateFunctionCode(params, function(err, data) {
    if (err) console.log(err, err.stack);
    else console.log(data);
});

- Mahdi Ridho

Answer 3

我的解决方案与上述提到的解决方案非常接近，但略有不同。也许正是因为这种差异，它为我解决了这个问题：

import AWS from 'aws-sdk'
import fs from 'fs'

const file = fs.readFileSync(`myFileName.zip`)

const params = {
  Code: {
    ZipFile: Buffer.from(file),
  },
  ...
}

// Then standard SDK Lambda implementation:

const lambda = new AWS.Lambda({ apiVersion: '2015-03-31' })
lambda.createFunction(params, function(err, data) {
  if (err) console.log(err, err.stack); // an error occurred
  else     console.log(data);           // successful response
});

- Roman

Answer 4

我遇到了这个问题并解决了它。

看起来你正在压缩zip文件。这就是为什么无法再次压缩它的原因。

附注：如果您正在使用AWS-S3，请取消选中“GZIP文件”选项。

- kranthi kumar

Answer 5

Node.js。像这样使用

fs.readFile('lambda/function.zip', (err, data) => {
   if (data) {
      console.log(data)
      lambda.createFunction(data);
  }
})

- kuldeep chopra