GraphQL Fullstack Samples using Spring GraphQL & React

GraphQL

GraphQL is a query language and server-side runtime for application programming interfaces (APIs) that prioritizes giving clients exactly the data they request and no more. GraphQL is designed to make APIs fast, flexible, and developer-friendly. It can even be deployed within an integrated development environment (IDE) known as GraphiQL. As an alternative to REST, GraphQL lets developers construct requests that pull data from multiple data sources in a single API call.

Prerequisites

Java 17
GraalVM 22.3+
Kotlin
Maven 3.x
Kafka

Build

You can install the dependencies and build by typing the following command

mvn clean install

To compile as native, run the following goal:

$ mvn native:compile -Pnative

Then, you can run the app as follows:

$ target/spring-graphql-samples

Testing

You can run application's tests by typing the following command

mvn verify

Code Quality

You can test code quality locally via sonarqube by typing the following command

mvn -Psonar compile initialize sonar:sonar

Detekt

Detekt a static code analysis tool for the Kotlin programming language

You can run detekt by typing the following command

mvn antrun:run@detekt

Dependency Vulnerabilities Check

You can check for security vulnerabilities by typing the following command

$ mvn -Powasp dependency-check:check

You can see the generated report at target/dependency-check-report.html

Docker

You can also fully dockerize the sample applications. To achieve this, first build a docker image of your app. The docker image of sample app can be built as follows:

mvn -Pjib verify jib:dockerBuild

to build native image

mvn -Pnative spring-boot:build-image

Prerequisites for Frontend

Nodejs 16+

Run the app

You can install the dependencies by typing the following command

npm run dev

You can run the react app(accessible on http://localhost:3000) by typing the following command

npm start

Rsocket

rsc --stream --route=subscriptions --dataMimeType="application/graphql+json" --data='{"query":"subscription { postAdded { id, title, content } }" }' --debug tcp://localhost:8079 --authBearer ${TOKEN}

Deployment with Docker Compose

Prerequisites for Docker Compose Deployment

Docker
Docker Compose

You can deploy app by running the following bash command

 sudo chmod +x deploy.sh

 ./deploy.sh -d

You can uninstall app the following bash command

 ./deploy.sh -d -r

The GraphQL App be accessed from the link below.
http://127.0.0.1:9091

Deployment Kubernetes with Helm

Prerequisites for Kubernetes Deployment

Kubernetes
Helm