![]() To be able to reference the generated code in the Spring Boot application it needs to be configured as sourceSet. The first task can be used to validate the schema definition, and the second task generates the code. The OpenAPI code generator needs a yaml schema definition file which includes all relevant information about the API code that should be generated.īased on the official petstore.yaml example I created a simple schema.yaml file for the demo news application:Īs you can see, two new Gradle tasks are defined: openApiValidate and openApiGenerate. This picture taken from the project's GitHub repository shows the impressive list of supported languages and frameworks:įor this article's demo project the package is used to generate the Angular code via npm and openapi-generator-gradle-plugin to generate the Spring code using Gradle. ![]() In this article, I want to focus on code generators, especially on the openapi-generator from OpenAPI Tools. The specification has undergone three revisions since its initial creation in 2010. Such an OpenAPI definition can be used by tools for testing, to generate documentation, server and client code in various programming languages, and many other use cases. OpenAPIĪ standard, language-agnostic interface to RESTful APIs which allows both humans and computers to discover and understand the capabilities of the service without access to source code, documentation, or through network traffic inspection The Angular frontend was generated with the Angular CLI and the Spring Boot backend with Spring Initializr. The frontend based on Angular requests this list from the backend and renders the list of news. The Demo Applicationįor this article, I have created a simple demo application that provides a backend REST endpoint based on Spring Boot that returns a list of gaming news. ![]() In this article, I want to demonstrate how you can implement such an OpenAPI generator in a demo application with an Angular frontend and a Spring Boot backend. Luckily, we can use generators that generate server stubs, models, configuration and more based on a OpenAPI specification. If you are developing the backend and frontend part of an application you know that it can be tricky to keep the data models between the backend & frontend code in sync.
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