如何在AWS js SDK中配置区域？

Question

我的问题

我正在编写一个简单的js函数，该函数从AWS CloudWatch Logs中读取一些信息。

遵循Node.js AWS开发工具包中的配置区域中的答案以及AWS nodejs SDK文档中的内容，我提出了以下内容：

码

var AWS = require('aws-sdk');

var cloudwatchlogs = new AWS.CloudWatchLogs();

console.log(AWS.config.region)              // Undefined

AWS.config.region = 'eu-central-1'          // Define the region with dot notation
console.log(AWS.config.region) .            // eu-central-1

AWS.config.update({region:'eu-central-1'}); // Another way to update
console.log(AWS.config.region) .            // eu-central-1


var params = {
  limit: 0,
//   logGroupNamePrefix: 'STRING_VALUE',
//   nextToken: 'STRING_VALUE'
};

// This call is failing
cloudwatchlogs.describeLogGroups(params, function(err, data) {
  if (err) console.log(err, err.stack); // an error occurred
  else     console.log(data);           // successful response
});

输出和错误

undefined
eu-central-1
eu-central-1
{ ConfigError: Missing region in config
    at Request.VALIDATE_REGION (/Users/adam/binaris/adam-test-sls/node_modules/aws-sdk/lib/event_listeners.js:91:45)
    at Request.callListeners (/Users/adam/binaris/adam-test-sls/node_modules/aws-sdk/lib/sequential_executor.js:105:20)
    at callNextListener (/Users/adam/binaris/adam-test-sls/node_modules/aws-sdk/lib/sequential_executor.js:95:12)
    at /Users/adam/binaris/adam-test-sls/node_modules/aws-sdk/lib/event_listeners.js:85:9
    at finish (/Users/adam/binaris/adam-test-sls/node_modules/aws-sdk/lib/config.js:315:7)
    at /Users/adam/binaris/adam-test-sls/node_modules/aws-sdk/lib/config.js:333:9
    at SharedIniFileCredentials.get (/Users/adam/binaris/adam-test-sls/node_modules/aws-sdk/lib/credentials.js:126:7)
    at getAsyncCredentials (/Users/adam/binaris/adam-test-sls/node_modules/aws-sdk/lib/config.js:327:24)
    at Config.getCredentials (/Users/adam/binaris/adam-test-sls/node_modules/aws-sdk/lib/config.js:347:9)
    at Request.VALIDATE_CREDENTIALS (/Users/adam/binaris/adam-test-sls/node_modules/aws-sdk/lib/event_listeners.js:80:26)
  message: 'Missing region in config',
  code: 'ConfigError',
  time: 2017-07-11T09:57:55.638Z } ...

环境

该代码在本地运行node v8.1.2。

我的问题

如何在AWS js SDK中正确配置区域？

附录

在github上打开了一个问题，并得到了一些回应。

Answer 1

或者，您也可以在创建cloudwatch对象时指定：

var AWS = require('aws-sdk');
var cloudwatchlogs = new AWS.CloudWatchLogs({region: 'eu-central-1'});

Answer 2

按照以下方式编写代码它将起作用。

var AWS = require('aws-sdk');

// assign AWS credentials here in following way:
AWS.config.update({
  accessKeyId: 'asdjsadkskdskskdk',
  secretAccessKey: 'sdsadsissdiidicdsi',
  region: 'eu-central-1'
});
var cloudwatchlogs = new AWS.CloudWatchLogs({apiVersion: '2014-03-28'});