graphql-java-immutables

Generator for Immutable Java classes from GraphQL Schema.

This project assists you in creating either a GraphQL server or client in Java. You can configure it to create either Lombok or Immutables or Groovy based DTOs.

Getting Started

Clone the project and run ./gradlew build

This should build the project using Gradle.

Then run:

java -jar build/libs/graphql-java-immutables-0.0.1.jar

You get a warning like Missing 'generator.file' property!

Set it like this:

export GENERATOR_FILE=your_file.graphql

Where your_file.graphql points to a valid GraphQL schema.

Config

All the available configuration properties and the defaults are the following:

    File file
    OutputType outputType = IMMUTABLES or LOMBOK_JAVA or GROOVY
    String fileComment = ''
    String javadocComment = ''
    boolean includeJacksonJson = true
    String classnameSuffix = 'DTO'
    String classnamePrefix = ''
    String packageName = 'org.example'

Each of these should be set using environment variable. For example, to set the package name:

export GENERATOR_PACKAGENAME=com.your_package

Output

Files are put under the src/main/java directory.

Examples

For example, given the following GraphQL file:

scalar Date
scalar DateTime

type Query {
  user(name: String): User
}

type User {
  created: Date!
  id: ID!
  name: String!
  type: UserType!
  events: [Event!]
}

type Event {
  when: DateTime!
  type: String!
  comments: String
}

enum UserType {
    USER
    ADMIN
}

It will create a User class, Event class, and UserType enum.