graphql-rxjava
This is an execution strategy for graphql-java that makes it easier to use rxjava's Observable. It currently requires Java8.
Table of Contents
Rx Hello World
This is the famous "hello world" in graphql-rxjava:
import graphql.schema.GraphQLObjectType;
import graphql.schema.GraphQLSchema;
import graphql.execution.RxExecutionStrategy;
import graphql.execution.RxExecutionResult;
import static graphql.Scalars.GraphQLString;
import static graphql.schema.GraphQLFieldDefinition.newFieldDefinition;
import static graphql.schema.GraphQLObjectType.newObject;
public class HelloWorld {
    public static void main(String[] args) {
        GraphQLObjectType queryType = newObject()
                        .name("helloWorldQuery")
                        .field(newFieldDefinition()
                                .type(GraphQLString)
                                .name("hello")
                                .staticValue(Observable.just("world")))
                                .build())
                        .build();
        GraphQLSchema schema = GraphQLSchema.newSchema()
                        .query(queryType)
                        .build();
        Observable<?> result = ((RxExecutionResult)new GraphQL(schema, new RxExecutionStrategy()).execute("{hello}")).getDataObservable();
        result.subscribe(System.out::println);
        // Prints: {hello=world}
    }
} 
Getting started with gradle
Make sure mavenCentral is among your repos:
repositories {
    mavenCentral()
}
 
Dependency:
dependencies {
  compile 'com.graphql-java:graphql-rxjava:0.0.1'
}
 
License
graphql-rxjava is licensed under the MIT License. See LICENSE for details.
Copyright (c) 2015, NFL and Contributors
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