template.yaml

Transform: 'AWS::Serverless-2016-10-31'
Resources:
    postsFunction:
        Type: 'AWS::Serverless::Function'
        Properties:
            Runtime: nodejs12.x
            Handler: index.postsHandler
            CodeUri: ./src
            Events:
                lambdaGetAllPosts:
                    Type: Api
                    Properties:
                        Path: /posts
                        Method: GET
                lambdaGetPost:
                    Type: Api
                    Properties:
                        Path: /posts/{postid}
                        Method: GET
                lambdaAddPost:
                    Type: Api
                    Properties:
                        Path: /posts
                        Method: POST
                lambdaAddComment:
                    Type: Api
                    Properties:
                        Path: /posts/{postid}/comments
                        Method: POST
                lambdaUpdatePost:
                    Type: Api
                    Properties:
                        Path: /posts/{postid}
                        Method: PUT
                lambdaDeletePost:
                    Type: Api
                    Properties:
                        Path: /posts/{postid}
                        Method: DELETE
                lambdaDeleteComment:
                    Type: Api
                    Properties:
                        Path: /posts/{postid}/comments/{commentid}
                        Method: DELETE
            Policies:
                -   Version: '2012-10-17'
                    Statement: 
                        -   Effect: Allow
                            Action:
                                -   'dynamodb:Scan'
                                -   'dynamodb:Query'
                                -   'dynamodb:DeleteItem'
                                -   'dynamodb:GetItem'
                                -   'dynamodb:PutItem'
                                -   'dynamodb:UpdateItem'
                            Resource:
                                'Fn::Join':
                                    -   ''
                                    -   -   'arn:aws:dynamodb:'
                                        -   Ref: 'AWS::Region'
                                        -   ':'
                                        -   Ref: 'AWS::AccountId'
                                        -   ':table/posts'
    
    postsTable:
        Type: 'AWS::DynamoDB::Table'
        Properties:
            TableName: posts
            AttributeDefinitions:
                -   AttributeName: postid
                    AttributeType: S
            KeySchema:
                -   AttributeName: postid
                    KeyType: HASH
            ProvisionedThroughput:
                ReadCapacityUnits: 5
                WriteCapacityUnits: 5
Outputs:
  PublicApi:
    Description: "API Gateway endpoint URL for Prod stage for Posts handler function"
    Value: !Sub "https://${ServerlessRestApi}.execute-api.${AWS::Region}.amazonaws.com/Prod/posts/"