Sample config, API backend generation

api_generation.yaml

!import "common.groovy"
!import "springboot.groovy"
!import "postgres.groovy"

!merge "moreConfig.yaml" #!dominant
!merge "otherConfig.yaml" #!submissive

springboot:
  - db: "postgres"

postgres:
  - production:
    - host: "database.example.com"
    - username: "username"
    - password: "password"

  - staging:
    - host: "stagingdb.example.org"
    - username: "staging"
    - password: "changeme"

  - development:
    - default: true
    - host: "localhost"
    - username: "clientdatabase"
    - password: "test"

api:
  - name: "ClientDatabase"
  - type: "springboot"
  - entities:
    - client:
      - id: "PK,AI"

      - name:
        - type: "string"
        - length: 128

      - wealth:
        - type: "long"

      - households:
        - relation: "multi household"

      - related:
        - relation: "multi client"

    - household:
      - id: "PK,AI"

      - address:
        - type: "string"
        - length: 256

  - endpoints:
    - "household/calculate_price": ´sum(household.getClients()*.getWealth()) * 0.15´

I think it might also be a cool idea to use Java 8 Streams for adding functionality to the generated api. Maybe even using streams to override etc.