AppSync CRUD API sls file

serverless.yml

service: appsync-crud-api
frameworkVersion: '2'

provider:
  name: aws
  runtime: nodejs12.x
  lambdaHashingVersion: 20201221
  region: ${env:REGION, 'ap-south-1'}
  stage: ${opt:stage, 'dev'}
  timeout: 30

  # Environment variables
  environment:
    STAGE: ${self:provider.stage}
    REGION: ${self:provider.region}
    SERVICE_NAME: ${self:service}-${self:provider.stage}
    DYNAMODB: ${self:service}-${self:provider.stage}

 # IAM statements
  iamRoleStatements:
    - Effect: Allow
      Action:
        - dynamodb:GetItem
        - dynamodb:UpdateItem
        - dynamodb:DeleteItem
        - dynamodb:PutItem
      Resource: "arn:aws:dynamodb:${opt:region, self:provider.region}:*:table/${self:provider.environment.DYNAMODB}"
    - Effect: Allow
      Action:
        - lambda:invokeFunction
      Resource: "*" 
      
plugins:
  - serverless-appsync-plugin

functions:
  createBlog:
    handler: createBlog/index.handler
    name: createBlog-${self:provider.stage}
  getBlog:
    handler: getBlog/index.handler
    name: getBlog-${self:provider.stage}
  updateBlog:
    handler: updateBlog/index.handler
    name: updateBlog-${self:provider.stage}
  deleteBlog:
    handler: deleteBlog/index.handler
    name: deleteBlog-${self:provider.stage}

custom:
  appSync:
    name: appsync-crud-api
    schema: schema.api.graphql
    authenticationType: API_KEY
    apiKeys:
      - apiKey
    dataSources:
      - type: AWS_LAMBDA
        name: createBlog
        description: 'Lambda'
        config:
          functionName: createBlog           
      - type: AWS_LAMBDA
        name: getBlog
        description: 'Lambda'
        config:
          functionName: getBlog
      - type: AWS_LAMBDA
        name: updateBlog
        description: 'Lambda'
        config:
          functionName: updateBlog
      - type: AWS_LAMBDA
        name: deleteBlog
        description: 'Lambda'
        config:
          functionName: deleteBlog

resources:
  Resources:
    BlogsTable:
      Type: 'AWS::DynamoDB::Table'
      Properties:
        AttributeDefinitions:
          - AttributeName: id
            AttributeType: S
        KeySchema:
          - AttributeName: id
            KeyType: HASH
        ProvisionedThroughput:
          ReadCapacityUnits: 1
          WriteCapacityUnits: 1
        TableName: ${self:provider.environment.DYNAMODB}