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How to implement and use Swagger in Node.js
OpenAPI
OpenAPI defines some standards which are used;
- for the design of RESTful web servers,
- for testing APIs, without accessing source codes,
- for the documenting of APIs
You can inform the users of your APIs with OpenAPI about
- the endpoints
- CRUD operations
- Authentication methods
- Contact information
Swagger
Swagger is a set of open-source software tools built around the OpenAPI Specification with which we can build, document, and test our APIs.
You can get more information about Swagger from its web site.
In this article, I will talk about;
- how to implement Swagger to a RESTful web server built with Node.js
- Swagger UI
- API documentation
I will go on to tell assuming that you are familiar with Node.js and RESTful API concepts at least at a basic level and I will use VS Code as the code editor.
Firstly let’s create a RESTful web server: