serverless.yml

service: user-service

plugins:
  - serverless-esbuild # used for compiling/packaging the Typescript code
  - serverless-offline # used for local execution
  - serverless-dynamodb # used for local execution with dynamodb

package:
  patterns:
    - 'src/**'
    - '!test/**'

provider:
  name: aws
  runtime: nodejs18.x
  region: us-west-2
  stage: ${opt:stage, 'dev'}
  timeout: 30
  environment:
    STAGE: ${self:provider.stage}
    LOG_LEVEL: 'DEBUG' #${ssm:${self:provider.stage}.LOG_LEVEL}
    USER_TABLE: ${self:provider.stage}.user
  iam:
    role:
      statements:
        - Effect: Allow
          Action:
            - dynamodb:GetItem
            - dynamodb:Query
            - dynamodb:PutItem
          Resource:
            - arn:aws:dynamodb:${self:provider.region}:${self:custom.accountId}:table/${self:provider.environment.USER_TABLE}*

custom:
  accountId: 9999999 #FIXME got an error when trying to resolve ${aws:accountId} with serverless offline. this must be manually set (for now)
  managedTablesDeletionPolicy: # This is useful to avoid data loss when deploying changes to table key schema to production
    prod: Retain
    default: Delete
  serverless-dynamodb:
    stages:
      - local
      - dev
    start:
      docker: false
      migrate: true,
      seed: true
      port: 8000
      inMemory: true
    seed:
      test:
        sources:
          - table: ${self:provider.environment.USER_TABLE}
            sources: [./test/integration/seed-data/user.data.json]

functions:
  get-user:
    handler: ./src/user-handlers.get
    events:
      - httpApi: 'GET /user/{userId}'
  create-user:
    handler: ./src/user-handlers.create
    events:
      - httpApi: 'POST /user'
  # update-user:
  #   handler: ./src/user-handlers.update
  #   events:
  #     - httpApi: 'PUT /user/{id}'
  list-users:
    handler: ./src/user-handlers.list
    events:
      - httpApi: 'GET /users'

resources:
  Resources:
    userTable:
      Type: AWS::DynamoDB::Table
      DeletionPolicy: ${self:custom.managedTablesDeletionPolicy.${self:provider.stage}, self:custom.managedTablesDeletionPolicy.default}
      Properties:
        TableName: ${self:provider.environment.USER_TABLE}
        KeySchema:
          - AttributeName: id
            KeyType: HASH
        AttributeDefinitions:
          - AttributeName: id
            AttributeType: S
          - AttributeName: GSI1_PK
            AttributeType: S
          - AttributeName: name
            AttributeType: S
        BillingMode: PAY_PER_REQUEST
        GlobalSecondaryIndexes:
          - IndexName: GSI1
            KeySchema:
              - AttributeName: GSI1_PK
                KeyType: HASH
              - AttributeName: name
                KeyType: RANGE
            Projection:
              ProjectionType: ALL
        Tags:
          - Key: DDBTableGroupKey-${self:provider.stage}
            Value: ${self:provider.stage}
          - Key: OwnerService
            Value: ${self:service}