API Gateway to Lambda to DynamoDB

Make a request to API Gateway that saves data in DynamoDB.

This pattern demonstrates how making an HTTP POST request to an Amazon API Gateway endpoint invokes an AWS Lambda function and inserts an item into an Amazon DynamoDB table.

AWSTemplateFormatVersion: '2010-09-09'
Transform: AWS::Serverless-2016-10-31
Description: Serverless patterns - Amazon API Gateway to AWS Lambda to Amazon DynamoDB (uksb-1tthgi812) (tag:apigw-lambda-dynamodb)
Resources:
  LambdaFunction:
    Type: AWS::Serverless::Function
    Description: 'Lambda function inserts data into DynamoDB table'
    Properties:
      FunctionName: WeatherFunction
      Handler: index.lambda_handler
      Runtime: python3.7
      CodeUri: src/
      Policies:
        DynamoDBCrudPolicy:
          TableName: !Ref DynamoDBTable
      Events:
        ApiEvent:
          Type: Api
          Properties:
            Path: /
            Method: POST
  DynamoDBTable:
    Type: AWS::Serverless::SimpleTable
    Properties:
      TableName: WeatherData
Outputs:
  EndpointUrl:
    Description: 'HTTP REST endpoint URL'
    Value: !Sub 'https://${ServerlessRestApi}.execute-api.${AWS::Region}.amazonaws.com/Prod'