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我正在尝试通过 AWS Javascript SDK 使用 AWS Rekognition API，并UnknownError: Bad Request在我尝试启动他们的任何检测服务时收到。我想运行标签检测，但在尝试其他方法时遇到相同的错误，例如名人面部检测。我已确保我的帐户可以访问 Rekognition API 并确保我的凭据正确（或者至少相同的凭据适用于附加到同一帐户的 S3）。

我的代码

var aws = require('aws-sdk');
const region = 's3-us-west-2';
const bucket = process.env.S3_VIDEO_BUCKET;
var requesttoken = randString(10) //generates random string
var key = 'path/to/key.mp4';

// used to check for keys to available files
var service = new aws.S3({
  accessKeyId: process.env.ACCESS_KEY,
  secretAccessKey: process.env.ACCESS_SECRET,
  region: region,
  endpoint: 'https://'+region+'.amazonaws.com/',
})

var rekognition = new aws.Rekognition({
  accessKeyId: process.env.ACCESS_KEY,
  secretAccessKey: process.env.ACCESS_SECRET,
  region: region,
  endpoint: 'https://'+region+'.amazonaws.com/',
  apiVersion: '2016-06-27'
})

// check that key is reachable in S3
this.service.getObject({Bucket:bucket,Key:key}, function(err, data){
  if(err){
    console.error(err, err.stack)
  } else {
    console.log(data)
  }
})

var params = {
  Video: {
    S3Object: {
      Bucket: bucket,
      Name: key
    }
  },
  ClientRequestToken: requesttoken,
  NotificationChannel: {
    RoleArn: 'arn:aws:sns:us-west-2:000000000:example',
    SNSTopicArn: 'example'
  }
};

rekognition.startContentModeration(params, (err,data)=>{
  if (err) {console.log(err, err.stack); return;};
  console.log(data)
})

当我运行此代码时，我得到

{ UnknownError: Bad Request
at Request.extractError 
(/Users/username/Desktop/project_directory/node_modules/aws-sdk/lib/protocol/json.js:48:27)
at Request.callListeners (/Users/username/Desktop/project_directory/node_modules/aws-sdk/lib/sequential_executor.js:105:20)
at Request.emit (/Users/username/Desktop/project_directory/node_modules/aws-sdk/lib/sequential_executor.js:77:10)
at Request.emit (/Users/username/Desktop/project_directory/node_modules/aws-sdk/lib/request.js:683:14)
at Request.transition (/Users/username/Desktop/project_directory/node_modules/aws-sdk/lib/request.js:22:10)
at AcceptorStateMachine.runTo (/Users/username/Desktop/project_directory/node_modules/aws-sdk/lib/state_machine.js:14:12)
at /Users/username/Desktop/project_directory/node_modules/aws-sdk/lib/state_machine.js:26:10
at Request.<anonymous> (/Users/username/Desktop/project_directory/node_modules/aws-sdk/lib/request.js:38:9)
at Request.<anonymous> (/Users/username/Desktop/project_directory/node_modules/aws-sdk/lib/request.js:685:12)
at Request.callListeners (/Users/username/Desktop/project_directory/node_modules/aws-sdk/lib/sequential_executor.js:115:18)
message: 'Bad Request',
code: 'UnknownError',
statusCode: 400,
time: 2018-06-29T21:08:27.184Z,
requestId: '2809C3770B525EF0',
retryable: false,
retryDelay: 57.00430269412582 }

我的问题

是否有人对 Rekognition API/AWS 和 JS SDK 足够熟悉，他们知道在这种情况下 Bad Request 可能表示什么？AWS 文档中是否有某处解释了此错误可能表示的含义？

4

1 回答 1

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从您的配置中删除端点，它会自动填充

这个配置也是错误的

var rekognition = new aws.Rekognition({
accessKeyId: process.env.S3_ACCESS_KEY,
secretAccessKey: process.env.S3_BUCKET_ACCESS_SECRET,

您的访问密钥 ID 应该是您的 AWS 访问密钥，而不是 S3 访问密钥。除非 S3 env vars 指向您的实际 AWS 访问密钥（您可能应该重命名它们）

于 2018-06-29T22:16:27.710 回答