spring-graphql-sample

Spring GraphQL examples using the following frameworks and libraries:

• Netflix DGS(Domain Graph Service) framework
• Spring GraphQL
• GraphQL Java Kickstart
• GraphQL Java
• GraphQL SPQR(GraphQL Schema Publisher & Query Resolver, pronounced like speaker)
• ExpediaGroup GraphQL Kotlin

Other GraphQL Java integration examples with Java frameworks.

• GraphQL with Quarkus
• GraphQL with Vertx

Guide

TBD

Example Codes

Example name	Description
dgs	Simple Netflix DGS example
dgs-webflux	Simple Netflix DGS example with Spring WebFlux
dgs-subscription-ws	Simple Netflix DGS Subscription example using WebSocket protocol
dgs-subscription-ui	Angular Client app for dgs-subscription-ws
dgs-subscription-sse	Simple Netflix DGS Subscription example using Http/SSE protocol
dgs-codegen	Netflix DGS example with Spring Jdbc and Gradle codegen plugin
dgs-fileupload	Netflix DGS file upload example
dgs-client	Netflix DGS Typesafe Client example
dgs-kotlin-co	A complete Netflix DGS example with WebFlux, Kotlin Coroutines, Spring Data R2dbc and Spring Security
dgs-kotlin	A complete Netflix DGS example with WebMvc/Kotlin, Spring Data Jdbc, Spring Security and Spring Session/Spring Data Redis
graphql-kotlin	ExpediaGroup Graphql Kotlin Spring Boot example
spring-graphql	Spring GraphQL example
spring-graphql-webmvc	Spring GraphQL with WebMvc Controller annotation example
spring-graphql-querydsl	Spring GraphQL/JPA/QueryDSl Data Fetchers example
spring-graphql-webflux	Spring GraphQL/WebFlux example with WebSocket transport protocol
spring-graphql-rsocket-kotlin-co	Spring GraphQL/WebFlux/Kotlin Coroutines example with RSocket transport protocol

Legacy Codes

Some example codes are moved to legacy folder, because the upstream project is discontinued or under an inactive development status.

Example name	Description
graphql-java	GraphQL Java vanilla Spring Boot example, upstream project is discontinuned, replaced by Spring GraphQL
graphql-spqr	GraphQL SPQR Spring example, inactive
graphql-java-kickstart	GraphQL Java Kickstart Spring Boot example
graphql-java-kickstart-webclient	GraphQL Java Kickstart Spring WebClient example
graphql-java-kickstart-annotations	GraphQL Java Kickstart Spring Boot example(Code first)

Prerequisites

Make sure you have installed the following software.

• Java 21
• Apache Maven 3.8.x / Gradle 7.x
• Docker

Some sample codes are written in Kotlin. If you are new to Kotlin, start to learn it from the the Kotlin homepage.

Build

Clone the source codes from Github.

git clone https://github.com/hantsy/spring-graphql-sample/

Open a terminal, and switch to the root folder of the project, and run the following command to build the whole project.

docker-compose up postgres // start up a postgres it is required
cd examplename // change to the example folder
mvn clean install // build the project
//or
./gradlew build

Run the application.

mvn spring-boot:run 
//or 
./gradlew bootRun
// or from command line after building
java -jar target/xxx.jar

Contribution

Any suggestions are welcome, filing an issue or submitting a PR is also highly recommended.

References

• Getting started with GraphQL Java and Spring Boot
• Getting Started with GraphQL and Spring Boot
• Open Sourcing the Netflix Domain Graph Service Framework: GraphQL for Spring Boot
• Netflix Open Sources Their Domain Graph Service Framework: GraphQL for Spring Boot
• Netflix Embraces GraphQL Microservices for Rapid Application Development
• GraphQL Reference Guide: Building Flexible and Understandable APIs