Aws lambda proxy Swagger template integration

问题

I'm trying to setup swagger template to call my all in one lambda.

lets say there are two "functions" underneath processlambda. Would this be a correct openapi 3.0 template, or do I have to specifically configure request types and response types

{
   "openapi": "3.0.0",
   "info": {
      "version": "2016-09-12T17:50:37Z",
      "title": "ProxyIntegrationWithLambda"
   },
   "paths": {
      "/GetItemById": {
         "x-amazon-apigateway-any-method": {
            "parameters": [
               {
                  "name": "proxy",
                  "in": "path",
                  "required": true,
                  "schema": {
                     "type": "string"
                  }
               }
            ],
            "responses": {},
            "x-amazon-apigateway-integration": {
               "responses": {
                  "default": {
                     "statusCode": "200"
                  }
               },
               "uri": "arn:aws:apigateway:us-east-1:lambda:path/2015-03-31/functions/arn:aws:lambda:us-east-1:123456789012:function:SimpleLambda4ProxyResource/invocations",
               "passthroughBehavior": "when_no_match",
               "httpMethod": "POST",
               "cacheNamespace": "roq9wj",
               "cacheKeyParameters": [
                  "method.request.path.proxy"
               ],
               "type": "aws_proxy"
            }
         }
      }
   },
      "/SaveItem": {
         "x-amazon-apigateway-any-method": {
            "parameters": [
               {
                  "name": "proxy",
                  "in": "path",
                  "required": true,
                  "schema": {
                     "type": "string"
                  }
               }
            ],
            "responses": {},
            "x-amazon-apigateway-integration": {
               "responses": {
                  "default": {
                     "statusCode": "200"
                  }
               },
               "uri": "arn:aws:apigateway:us-east-1:lambda:path/2015-03-31/functions/arn:aws:lambda:us-east-1:123456789012:function:SimpleLambda4ProxyResource/invocations",
               "passthroughBehavior": "when_no_match",
               "httpMethod": "POST",
               "cacheNamespace": "roq9wj",
               "cacheKeyParameters": [
                  "method.request.path.proxy"
               ],
               "type": "aws_proxy"
            }
         }
      }
   },
   "servers": [
      {
         "url": "https://gy415nuibc.execute-api.us-east-1.amazonaws.com/{basePath}",
         "variables": {
            "basePath": {
              "default": "/Process"
            }
         }
      }
   ]
}

haven't tested this yet, but C# function code uses APIGateway response/request standart aws objects

回答1:

As an alternative, a good path you may use is to configure your API Gateway(pointing to AWS Lambda) and then generate your openapi specs from API Gateway config and then generate your c# clients.

After API Gateway is configured you can run the following steps:

Step 1 of 2) run get-export , example :

aws apoigateway get-export 
  --rest-api-id 'idfromapigateway-grab-inside-awsdashboard' 
  --stage-namem 'stage-grab-inside-awsdashboard' 
  --export-type 'swagger' outputfile-with-openapispec-generated-step1.json

Step 2 of 2) Generate client, example:

nswag swagger2csclient /input:outputfile-with-openapispec-generated-step1.json
  /classname:SpecifyYourCSharpClassName
  /namespace:SpecifyYourCSharpNamespace
  /output:SpecifyYourCSharpFile

The result of step 2 generates c# classes that can be used in integration testing.

来源：https://stackoverflow.com/questions/56040691/aws-lambda-proxy-swagger-template-integration