API Gateway mocked API example template

template.yaml

AWSTemplateFormatVersion: '2010-09-09'
Transform: AWS::Serverless-2016-10-31

Description: Mocked HTTP API

Parameters:
  ThrottlingRateLimit:
    Type: Number
    Description: The rate limit for the mock API.
    Default: 1
  ThrottlingBurstLimit:
    Type: Number
    Description: The burst limit for the mock API.
    Default: 5

Resources:

  MockedApi:
    Type: AWS::Serverless::Api
    Properties:
      Name: !Sub "${AWS::StackName}-mocked"
      StageName: api
      GatewayResponses:
        DEFAULT_4XX:
          StatusCode: 403
          ResponseTemplates: 
            "text/plain": "Unauthorized"
        RESOURCE_NOT_FOUND:
          StatusCode: 404
          ResponseTemplates: 
            "text/plain": "Not Found"
        THROTTLED:
          StatusCode: 429
          ResponseTemplates:
            "text/plain": "Request Throttled"
        DEFAULT_5XX:
          StatusCode: 500
          ResponseTemplates:
            "text/plain": "Internal Server Error"
      MethodSettings:
        - ResourcePath: "/*"
          HttpMethod: "*"
          ThrottlingRateLimit: !Ref MockApiThrottlingRateLimit
          ThrottlingBurstLimit: !Ref MockApiThrottlingBurstLimit
      DefinitionBody:
        swagger: 2.0
        info:
          title: "Mocked API"
        schemes:
          - "https"
        paths:
          /:
            put:
              produces:
                - "application/json"
              responses:
                "200":
                  description: "OK"
              x-amazon-apigateway-integration:
                type: "mock"
                requestTemplates:
                  application/json: |
                    {
                      "statusCode": 200
                    }
                responses:
                  default:
                    statusCode: "200"
                    responseTemplates:
                      application/json: |
                        {
                          "id": "example"
                        }
          /{id}:
            get:
              produces:
                - "application/json"
              responses:
                "200":
                  description: "OK"
              x-amazon-apigateway-integration:
                type: "mock"
                requestTemplates:
                  application/json: |
                    {
                      "statusCode": 200
                    }
                responses:
                  default:
                    statusCode: "200"
                    responseTemplates:
                      application/json: |
                        {
                          "id": "example",
                          "sku": "example",
                          "name": "Example",
                          "description": "This is an example",
                          "price": 15.49
                        }
            post:
              produces:
                - "application/json"
              responses:
                "200":
                  description: "OK"
                "404":
                  description: "Bad Request"
              x-amazon-apigateway-integration:
                type: "mock"
                requestTemplates:
                  application/json: |
                    {
                      "statusCode": 200
                    }
                responses:
                  default:
                    statusCode: "200"
                    responseTemplates:
                      application/json: |
                        {
                          "id": "example"
                        }
Outputs:
  ApiEndpoint:
    Description: "The REST API endpoint to query data"
    Value: !Sub "https://${MockedApi}.execute-api.${AWS::Region}.amazonaws.com/api/"