graphql-query-builder

GraphQL query builder for Java

Installation

Maven (pom.xml)

<dependencies>
    <dependency>
        <groupId>com.github.k0kubun</groupId>
        <artifactId>graphql-query-builder</artifactId>
        <version>0.2.0</version>
    </dependency>
</dependencies>

Gradle (build.gradle)

dependencies {
    compile 'com.github.k0kubun:graphql-query-builder:0.2.0'
}

Usage

To build following query,

user(name:"k0kubun") {
  name
  friends(first:10 after:"Y3Vyc29yMQ==") {
    totalCount
    edges {
      cursor
      node {
        ... on User {
          name
        }
      }
    }
  }
}

you can write code in the following way.

import com.github.k0kubun.builder.query.graphql.GraphQL;
import java.util.HashMap;
import java.util.Map;

Map<String, String> userParams = new HashMap<>();
userParams.put("name", "k0kubun");

String query = GraphQL.createQueryBuilder()
    .object("user", userParams, GraphQL.createObjectBuilder()
        .field("name")
        .objects("friends", 10, "Y3Vyc29yMQ==", GraphQL.createObjectBuilder()
            .field("totalCount")
            .object("edges", GraphQL.createObjectBuilder()
                .field("cursor")
                .object("node", GraphQL.createObjectBuilder()
                    .on("User", GraphQL.createObjectBuilder()
                        .field("name")
                        .build()
                    ).build()
                ).build()
            ).build()
        ).build()
    ).build();

Project Status

Experimental.

Unsupported features

• @include
• @skip
• Mutation
• Fragments
• Variables
• Aliases

License

MIT License