@nxrocks/nx-spring-boot

Nx Plugin to generate, run, package, build (and more) Spring Boot projects inside your Nx workspace

Usage no npm install needed!

<script type="module">
  import nxrocksNxSpringBoot from 'https://cdn.skypack.dev/@nxrocks/nx-spring-boot';
</script>

README

nx-spring-boot

npm version github action - release semantic-release

Nx Plugin to generate, run, package, build (and more) Spring Boot projects inside your Nx workspace

Contents

Features

Here is a list of some of the coolest features of the plugin:

  • ✅ Generation of Spring Boot applications/libraries based on Spring Initializr API

  • ✅ Building, packaging, testing, etc your Spring Boot projects

  • ✅ Code formatting using the excellent Spotless plugin for Maven or Gradle

  • ✅ Integration with Nx's dependency graph (through nx dep-graph or nx affected:dep-graph): this allows you to visualize the dependencies of any Spring Boot's Maven/Gradle applications or libraries inside your workspace, just like Nx natively does it for JS/TS-based projects!

    Nx Spring Boot dependency graph Example of running the nx dep-graph command on a workspace with 2 Spring Boot projects inside

  • ...

Prerequisite

If you have not already, create an Nx workspace with the following:

# npm
npx create-nx-workspace@latest

# yarn
yarn create nx-workspace@latest

Getting Started

Then you need to install the plugin in order to generate Spring Boot applications later on.

Installing Plugin

# npm
npm install @nxrocks/nx-spring-boot --save-dev

# yarn
yarn add @nxrocks/nx-spring-boot --dev

Generating Project

Simply run the project generator with the following command:

nx g @nxrocks/nx-spring-boot:new <your-app-name>

you can also use the following aliases to call the generator: proj, new, gen, init, create, or generate

You will be prompted for entering the most commonly customized generation options (like project's groupId, artifactId, packaging, dependencies, etc).

To skip the interactive prompt, or if you want to customize all non-prompted options, you can pass them along directly when running the command, as such:

nx g @nxrocks/nx-spring-boot:project <your-app-name> --optionName1 optionValue1 ... --optionNameN optionValueN

Generation Options

Here the list of available generation options :

Arguments Description
<name> The name of your project.
Option Value Description
projectType application | library Type of project to generate
buildSystem maven-project | gradle-project Build system
packaging jar | war Packaging to use
javaVersion 8 | 11 | 15 Java version to use
language java | groovy | kotlin Language to use
groupId string GroupId of the project
artifactId string ArtifactId of the project
packageName string Main package name
description string Description of the project
dependencies string List of dependencies to use (comma-separated). Go to https://start.spring.io/dependencies to get the ids needed here
springInitializerUrl https://start.spring.io URL to the Spring Initializer instance to use
bootVersion string Spring Boot version to use
tags string Tags to use for linting (comma-separated)
directory string Directory where the project is placed

Plugin Usage

Once your app is generated, you can now use buidlers to manage it.

Here the list of available executors:

Executor Arguments Description
run | serve* ignoreWrapper:boolean, args: string[] Runs the project using either ./mvnw\|mvn spring-boot:run or ./gradlew\|gradle bootRun
test ignoreWrapper:boolean, args: string[] Tests the project using either ./mvnw\|mvn test or ./gradlew\|gradle test
clean ignoreWrapper:boolean, args: string[] Cleans the project using either ./mvnw\|mvn clean or ./gradlew\|gradle clean
format ignoreWrapper:boolean, args: string[] Format the project using Spotless plugin for Maven or Gradle
format-check ignoreWrapper:boolean, args: string[] Check whether the project is well formatted using Spotless plugin for Maven or Gradle
build ignoreWrapper:boolean, args: string[] Packages the project into an executable Jar using either ./mvnw\|mvn package or ./gradlew\|gradle build
buildInfo* ignoreWrapper:boolean, Generates a build-info.properties using either ./mvnw\|mvn spring-boot:build-info or ./gradlew\|gradle bootBuildInfo
buildImage* ignoreWrapper:boolean, args: string[] Generates an OCI Image using either ./mvnw\|mvn spring-boot:build-image or ./gradlew\|gradle bootBuildImage

In order to execute the requested command, each executor will use, by default, the embedded ./mvnw or ./gradlew executable, that was generated alongside the project. If you want to rely on a globally installed mvn or gradle executable instead, add the --ignoreWrapper option to bypass it. This can be useful in a CI environment for example, or in a restricted environment where the binary cannot be downloaded (due to proxy/firewall limitations).

Running the project - ('run' or 'serve' Executors)

nx run your-boot-app:run

// or its shorter alias

nx serve your-boot-app

You can pass in additional arguments by editing the related section in the workspace.json file, as such:

{
  "version": 1,
  "projects": {
    "you-boot-app": {
      "projectType": "application",
      "root": "apps/you-boot-app",
      "sourceRoot": "apps/you-boot-app/src",
      "targets": {
        "run": { // or "serve", according to your preference
          "executor": "@nxrocks/nx-spring-boot:run",// or "@nxrocks/nx-spring-boot:serve", according to your preference
          "options": {
            "root": "apps/you-boot-app",
            "args": ["arg1", "arg2"]
          }
        }
      }
    }},
  "cli": {
    "defaultCollection": "@nrwl/workspace"
  }
}

Building the Jar or War - ('build' Executor)

nx build your-boot-app

Building the OCI Image - ('buildImage' Executor)

nx buildImage your-boot-app

You can pass in additional arguments by editing the related section in the workspace.json file, as such:

{
  "version": 1,
  "projects": {
    "you-boot-app": {
      "projectType": "application",
      "root": "apps/you-boot-app",
      "sourceRoot": "apps/you-boot-app/src",
      "targets": {
        "buildImage": {
          "executor": "@nxrocks/nx-spring-boot:buildImage",
          "options": {
            "root": "apps/you-boot-app",
            "args": ["--executor=gcr.io/paketo-buildpacks/executor:base-platform-api-0.3", "--runImage=my-image"]
          }
        }
      }
    }},
  "cli": {
    "defaultCollection": "@nrwl/workspace"
  }
}

Testing the project - ('test' Executor)

nx test your-boot-app

Cleaning the project - ('clean' Executor)

nx clean your-boot-app

Formatting the project - ('format' Executor)

nx run your-boot-app:format

//or simply

nx do-format your-boot-app

//or

nx apply-format your-boot-app

Checking the format the project - ('format-check' Executor)

nx check-format your-boot-app

//or

nx format-check your-boot-app

Compatibility with Nx

Every Nx plugin relies on the underlying Nx Workspace/DevKit it runs on. This table provides the compatibility matrix between major versions of Nx workspace and this plugin.

Plugin Version Nx Workspace version
>=v3.x.x >=v12.6.x
>=v2.x.x >=v11.x.x
<=v1.3.1 <=v10.x.x
## License

Copyright (c) 2020-2021 Tine Kondo. Licensed under the MIT License (MIT)