上传到Amazon S3和Rails的服务器调用亚马逊Cognito身份 [英] Upload to Amazon S3 and Calling Amazon Cognito Identity from Rails server

问题描述

我试图按照从iOS应用程序上传文件到Amazon S3的步骤。

I am trying to follow the steps to upload files to Amazon S3 from an iOS app.

据AWS的iOS的SDK文档，上传前，需要进行身份验证的应用程序，用户通过我的后端服务器的安全访问AWS资源： 的http://docs.aws.amazon.com/mobile/sdkforios/developerguide/cognito-auth.html#providing-creds

According to the AWS iOS SDK docs, before uploading, it is required to authenticate the app users for secure access to AWS resources via my backend server: http://docs.aws.amazon.com/mobile/sdkforios/developerguide/cognito-auth.html#providing-creds

什么是正确的方式来调用AWS Cognito身份 GetOpenIdTokenForDeveloperIdentity 从轨服务（4.1版）服务器？

What is the right way to call the AWS Cognito Identity GetOpenIdTokenForDeveloperIdentity service from a rails (version 4.1) server?

这个服务是不是AWS-SDK宝石的一部分。

This service is not part of the aws-sdk gem.

推荐答案

Cognito仅通过在 V2的Ruby支持SDK 。

Cognito is only supported via the the v2 Ruby SDK.

下面是一个使用V2 SDK一个小例子为 GetOpenIdTokenForDeveloperIdentity ：

Here is a minimal example for GetOpenIdTokenForDeveloperIdentity using the v2 SDK:

require 'aws-sdk'
cognito = Aws::CognitoIdentity::Client.new(region:'us-east-1')
resp = cognito.get_open_id_token_for_developer_identity(
           identity_pool_id: 'IDENTITY_POOL_ID', 
           logins: {'MY_PROVIDER_NAME' => 'USER_IDENTIFIER'})

• IDENTITY_POOL_ID - 池的ID
• MY_PROVIDER_NAME - 你对你的身份池中配置的提供者的名称
• USER_IDENTIFIER - 该用户在系统中的唯一标识符
• IDENTITY_POOL_ID - The ID of your pool
• MY_PROVIDER_NAME - The provider name you configured on your identity pool
• USER_IDENTIFIER - The unique identifier for this user in your system

响应（成功时）将包含 identity_id 和标记为您的用户，可以通过回为您的移动应用程序。

The response (when successful) will contain an identity_id and token for your user, which can be passed back to your mobile application.

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