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Quick and "dirty" demo project for my "GraphQL with Quarkus" talk

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GraphQL Quarkus Talk Demo

Quick and "dirty" demo project for my "GraphQL with Quarkus" talk.

Running and packaging

Running the application in dev mode

You can run your application in dev mode that enables live coding using:

./gradlew quarkusDev

NOTE: Quarkus now ships with a Dev UI, which is available in dev mode only at http://localhost:8080/q/dev/.

Packaging and running the application

The application can be packaged using:

./gradlew build

It produces the quarkus-run.jar file in the build/quarkus-app/ directory.

Be aware that it’s not an über-jar as the dependencies are copied into the build/quarkus-app/lib/ directory.

The application is now runnable using java -jar build/quarkus-app/quarkus-run.jar.

If you want to build an über-jar, execute the following command:

./gradlew build -Dquarkus.package.type=uber-jar

The application, packaged as an über-jar, is now runnable using java -jar build/*-runner.jar.

Creating a native executable

You can create a native executable using:

./gradlew build -Dquarkus.package.type=native

Or, if you don't have GraalVM installed, you can run the native executable build in a container using:

./gradlew build -Dquarkus.package.type=native -Dquarkus.native.container-build=true

You can then execute your native executable with: ./build/graphql-talk-quarkus-demo-1.0.0-SNAPSHOT-runner

If you want to learn more about building native executables, please consult https://quarkus.io/guides/gradle-tooling.

Discovering the GraphQL API

After startup go to http://localhost:8080 page that lists handy links: GraphQL and REST endpoints, GraphQL UI, OpenAPI UI...

Queries

Fetch single card entity:

{
  card(id: 1) {
    alias
    pan
    paymentSystem
  }
}

Fetch cards list:

{
  cards {
    pan
    paymentSystem
    tokens {
      tokenId
    }
    rewards {
      points
    }
  }
}

Fetch card CVV (it's retrieval performs from another datasource):

{
  card(id: 1) {
    cvv
  }
}

Mutations

Block card:

mutation {
  blockCard(id: 1) {
    status
  }
}

Mutate client's profile:

mutation updateProfile {
  updateProfile(update: {
    email: "1@example.com"
    firstName: "John"
    lastName: "Doe"
    language: UA
  }) 
  {
    email
    language
  }
}

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Quick and "dirty" demo project for my "GraphQL with Quarkus" talk

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