无法通过API网关POST请求以异步模式执行Lambda [英] Unable to execute Lambda in Async mode via API Gateway POST request

问题描述

为什么为什么现在不通过网关API以异步模式执行AWS Lambda而不涉及仅用于调用invoke()方法的中间Lambda?

Why currently there no way to execute AWS Lambda in asynchronous mode via Gateway API without involving intermediary Lambda just for calling invoke() method?

即使我添加这样的集成:

Even if i add integration like this:

r = client.put_integration(
    restApiId=rest_api_id,
    resourceId=resource_id,
    httpMethod='POST',
    type='AWS',
    integrationHttpMethod='POST',
    uri=uri,
    requestParameters={
        'integration.request.header.X-Amz-Invocation-Type': "'Event'",
        'integration.request.header.Invocation-Type': "'Event'"
    }
)

它仍然同步执行... 大约有平台限制吗?

It still executed synchronously... Are there some platform limitation or so?

推荐答案

我有一个示例Swagger文档，您可以将调用类型切换为Lambda函数.我想您已经了解了如何映射标头以触发不同的调用类型，但是我认为您可能会忘记部署API.

I have an example Swagger document which you can switch invocation type to Lambda function. I guess you already got how to map the header to trigger the different invocation types, but I think you might forget to deploy the API.

{
  "swagger": "2.0",
  "info": {
    "version": "2016-02-11T22:00:31Z",
    "title": "LambdaAsync"
  },
  "host": "<placeholder>",
  "basePath": "<placeholder>",
  "schemes": [
    "https"
  ],
  "paths": {
    "/": {
      "get": {
        "produces": [
          "application/json"
        ],
        "parameters": [
          {
            "name": "X-Amz-Invocation-Type",
            "in": "header",
            "required": false,
            "type": "string"
          }
        ],
        "responses": {
          "200": {
            "description": "200 response",
            "schema": {
              "$ref": "#/definitions/Empty"
            }
          }
        },
        "x-amazon-apigateway-integration": {
          "passthroughBehavior": "when_no_match",
          "httpMethod": "POST",
          "uri": "arn:aws:apigateway:us-east-1:lambda:path/2015-03-31/functions/arn:aws:lambda:us-east-1:<account>:function:<function_name>/invocations?Qualifier=$LATEST",
          "responses": {
            "default": {
              "statusCode": "200"
            }
          },
          "requestParameters": {
            "integration.request.header.X-Amz-Invocation-Type": "method.request.header.X-Amz-Invocation-Type"
          },
          "type": "aws"
        }
      }
    }
  },
  "definitions": {
    "Empty": {
      "type": "object",
      "title": "Empty Schema"
    }
  }
}

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