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，它从 AWS CloudWatch Logs 中读取一些信息。

根据Configuring region in Node.js AWS SDK 和AWS nodejs SDK documentation 的答案，我得出以下结论：

代码

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

代码在node v8.1.2下本地运行。

我的问题

如何在 AWS js SDK 中正确配置区域？

附录

打开an issue on github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即可。

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'});

Answer 3

使用以下。

AWS.config.update({region: 'eu-central-1'});

您可以在以下链接中找到更多信息。

http://docs.aws.amazon.com/sdk-for-javascript/v2/developer-guide/setting-region.html