AWS API网关错误：API网关没有将提供的角色作为S3代理的权限

Question

也有类似的问题，但它们都有我尝试过的答案。我不确定我可能做错了什么，但任何帮助都将不胜感激。

方法执行测试产生的错误；提交请求：

Execution log for request test-request
Mon Oct 16 10:13:47 UTC 2017 : Starting execution for request: test-invoke-request
Mon Oct 16 10:13:47 UTC 2017 : HTTP Method: PUT, Resource Path: /pop-data-xmlz/test.xml
Mon Oct 16 10:13:47 UTC 2017 : Method request path: {item=test.xml, folder=pop-data-xmlz}
Mon Oct 16 10:13:47 UTC 2017 : Method request query string: {}
Mon Oct 16 10:13:47 UTC 2017 : Method request headers: {Content-Type=application/xml}
Mon Oct 16 10:13:47 UTC 2017 : Method request body before transformations: <test>
test string
</test>
Mon Oct 16 10:13:47 UTC 2017 : Request validation succeeded for content type application/json
Mon Oct 16 10:13:47 UTC 2017 : Execution failed due to configuration error: API Gateway does not have permission to assume the provided role
Mon Oct 16 10:13:47 UTC 2017 : Method completed with status: 500

我正在学习S3的API网关教程(http://docs.aws.amazon.com/apigateway/latest/developerguide/integrating-api-with-aws-services-s3.html)以及尝试执行PUT请求。

API网关位于us-东-1，S3存储桶位于us-东-2。

创建的角色：APIGatewayProxyCustom

Answer 1

要解决此问题，请转到IAM中角色的定义，并选择信任关系选项卡。从这里编辑策略，并为主体服务添加apigateway.amazonaws.com，如下所示。

这将授予API网关除现有Lambda权限外，还可以担任运行函数的角色。

{
   "Version": "2012-10-17",
   "Statement": [
      {
        "Effect": "Allow",
        "Principal": {
            "Service": ["apigateway.amazonaws.com","lambda.amazonaws.com"]
        },
        "Action": "sts:AssumeRole"
      }
    ]
}