Create POST API

  1. Open template.yaml file in fcj-book-shop folder
  2. Add the following script at the end of the file that create the POST method 
                post:
              responses:
                "200":
                  description: 200 response
                  headers:
                    Access-Control-Allow-Origin:
                      type: string
              x-amazon-apigateway-integration:
                uri:
                  Fn::Sub: "arn:aws:apigateway:${AWS::Region}:lambda:path/2015-03-31/functions/${BookCreate.Arn}/invocations"
                responses:
                  default:
                    statusCode: 200
                    responseParameters:
                      method.response.header.Access-Control-Allow-Origin: "'*'"
                passthroughBehavior: when_no_match
                httpMethod: POST #always POST
                type: aws_proxy
    CreatePostAPI
  • Add the following script at the end of the BookCreate function 
          Events:
        CreateBook:
          Type: Api
          Properties:
            Path: /books/
            Method: post
            RestApiId:
              Ref: BookApi
    CreatePostAPI

  1. Run the following command to deploy SAM

    sam build
sam deploy --guided

    CreatePostAPI

    Enter “y” if asked “BookCreate may not have authorization defined, Is this okay? [y/N]:”

  2. Open book_create function console

    • Click API Gateway CreatePostAPI

  3. Show API Gateway being interacted with this function

    • Click this API Gateway CreatePostAPI

  4. Display the resources and POST method CreatePostAPI

  5. Click Stages on the left menu

    • Click staging
    • Click POST
    • Record InvokeURL of POST method CreatePostAPI