Amplifyで自動構築される内容の観察：DynamoDB編

$ amplify add api
? Please select from one of the below mentioned services: GraphQL
? Provide API name: amplifytest
? Choose the default authorization type for the API Amazon Cognito User Pool
 Do you want to use the default authentication and security configuration? Default configuration
 How do you want users to be able to sign in? Username
 Do you want to configure advanced settings? No, I am done.
? Do you want to configure advanced settings for the GraphQL API No, I am done.
? Do you have an annotated GraphQL schema? No
? Choose a schema template: Single object with fields (e.g., “Todo” with ID, name, description)
? Do you want to edit the schema now? No

$ amplify push
? Are you sure you want to continue? Yes
? Do you want to generate code for your newly created GraphQL API Yes
? Choose the code generation language target javascript
? Enter the file name pattern of graphql queries, mutations and subscriptions src/graphql/**/*.js
? Do you want to generate/update all possible GraphQL operations - queries, mutations and subscriptions Yes
? Enter maximum statement depth [increase from default if your schema is deeply nested] 2

type Todo @model {
  id: ID!
  name: String!
  description: String
}

type Todo @model
  @key(name: "todosByStatus", fields: ["status"], queryField: "todosByStatus") {
  id: ID!
  name: String!
  status: String!
}

Resources:
  DynamoDBTable:
    Type: AWS::DynamoDB::Table
    Properties:
      TableName: Todo-xxxxxxxx
      AttributeDefinitions:
        - AttributeName: id
          AttributeType: S
        - AttributeName: status
          AttributeType: S
      KeySchema:
        - AttributeName: id
          KeyType: HASH
      GlobalSecondaryIndexes:
        - IndexName: todoByStatus
          KeySchema:
            - AttributeName: status
              KeyType: HASH
          Projection:
            ProjectionType: ALL

type Item @model
  @key(fields: ["orderId", "status", "createdAt"])
  @key(name: "ByStatus", fields: ["status", "createdAt"], queryField: "itemsByStatus") {
  orderId: ID!
  status: Status!
  createdAt: AWSDateTime!
  name: String!
}
enum Status {
  DELIVERED
  IN_TRANSIT
  PENDING
  UNKNOWN
}

Resources:
  DynamoDBTable:
    Type: AWS::DynamoDB::Table
    Properties:
      TableName: Item-xxxxxxxx
      AttributeDefinitions:
        - AttributeName: orderId
          AttributeType: S
        - AttributeName: status#createdAt
          AttributeType: S
        - AttributeName: status
          AttributeType: S
        - AttributeName: createdAt
          AttributeType: S
      KeySchema:
        - AttributeName: orderId
          KeyType: HASH
        - AttributeName: status#createdAt
          KeyType: RANGE
      GlobalSecondaryIndexes:
        - IndexName: todoByStatus
          KeySchema:
            - AttributeName: status
              KeyType: HASH
            - AttributeName: createdAt
              KeyType: RANGE
          Projection:
            ProjectionType: ALL