GraphQL and GraphiQL Spring Framework Boot Starters

Table of Contents

Intro
Requirements and Downloads
Enable GraphQL Servlet
Enable GraphiQL
Supported GraphQL-Java Libraries
- GraphQL Java Tools - https://github.com/graphql-java/graphql-java-tools
- GraphQL Spring Common - https://github.com/oembedler/spring-graphql-common
Contributions
Licenses

Intro

Repository contains:

graphql-spring-boot-starter to turn your boot application into GraphQL server (see graphql-java-servlet)
graphiql-spring-boot-starterto embed GraphiQL tool for schema introspection and query debugging (see graphiql)

Requirements and Downloads

Requirements:

Java 1.8
Spring Framework Boot > 1.3.x (web)

Gradle:

repositories {
    mavenCentral()
}

dependencies {
  compile 'com.graphql-java:graphql-spring-boot-starter:3.9.2'
  
  // to embed GraphiQL tool
  compile 'com.graphql-java:graphiql-spring-boot-starter:3.9.2'
}

Maven:

<dependency>
    <groupId>com.graphql-java</groupId>
    <artifactId>graphql-spring-boot-starter</artifactId>
    <version>3.10.0</version>
</dependency>

<!-- to embed GraphiQL tool -->
<dependency>
    <groupId>com.graphql-java</groupId>
    <artifactId>graphiql-spring-boot-starter</artifactId>
    <version>3.10.0</version>
</dependency>

Enable GraphQL Servlet

The servlet becomes accessible at /graphql if graphql-spring-boot-starter added as a dependency to a boot application and a GraphQLSchema bean is present in the application. Check out the simple example for the bare minimum required.

A GraphQL schema can also be automatically created when a supported graphql-java schema library is found on the classpath.

See the graphql-java-servlet usage docs for the avaiable endpoints exposed.

Available Spring Boot configuration parameters (either application.yml or application.properties):

graphql:
      servlet:
               mapping: /graphql
               enabled: true
               corsEnabled: true

By default a global CORS filter is enabled for /graphql/** context. The corsEnabled can be set to false to disable it.

Enable GraphiQL

GraphiQL becomes accessible at the root /graphiql if graphiql-spring-boot-starter is added as a dependency to a boot application.

Note that GraphQL server must be available at /graphql/* context to be discovered by GraphiQL.

Available Spring Boot configuration parameters (either application.yml or application.properties):

graphiql:
    mapping: /graphiql
    endpoint: /graphql
    enabled: true

Supported GraphQL-Java Libraries

The following libraries have auto-configuration classes for creating a GraphQLSchema.

GraphQL Java Tools

https://github.com/graphql-java/graphql-java-tools

All GraphQLResolver and GraphQLScalar beans, along with a bean of type SchemaParserDictionary (to provide all other classes), will be used to create a GraphQLSchema. Any files on the classpath named *.graphqls will be used to provide the schema definition. See the Readme for more info.

GraphQL Spring Common [LATEST SUPPORTED VERSION: 3.1.1]

https://github.com/oembedler/spring-graphql-common

See the Readme and the example for usage instructions.

Application Properties

graphql:
      spring-graphql-common:
               clientMutationIdName: clientMutationId
               injectClientMutationId: true
               allowEmptyClientMutationId: false
               mutationInputArgumentName: input
               outputObjectNamePrefix: Payload
               inputObjectNamePrefix: Input
               schemaMutationObjectName: Mutation