what is swagger . An example yaml file for swagger .

Swagger is an open-source framework for building, documenting, and testing RESTful APIs. It provides tools for developers to design and document APIs using a common language and allows clients to interact with the API using standardized HTTP requests and responses. A Swagger file, also known as a Swagger specification or OpenAPI specification, is a document that describes an API in a machine-readable format. The file can be written in YAML or JSON and includes information such as the API's endpoints, parameters, data models, response formats, and authentication methods.

Here is an example Swagger file in YAML format:

swagger: '2.0'

info:

  version: 1.0.0

  title: Sample API

  description: A sample API for demonstration purposes

host: api.example.com

basePath: /v1

schemes:

  - https

consumes:

  - application/json

produces:

  - application/json

paths:

  /users:

    get:

      summary: Get a list of users

      description: Returns a list of all users in the system

      produces:

        - application/json

      responses:

        200:

          description: OK

          schema:

            type: array

            items:

              type: object

              properties:

                id:

                  type: integer

                  example: 123

                name:

                  type: string

                  example: John Doe

                email:

                  type: string

                  example: mukesh@bhrikutisoft.com

    post:

      summary: Create a new user

      description: Creates a new user in the system

      consumes:

        - application/json

      parameters:

        - in: body

          name: user

          description: The user to create

          schema:

            type: object

            properties:

              name:

                type: string

                example: Jane Doe

              email:

                type: string

                example: mukesh@bhrikutisoft.com

      responses:

        201:

          description: Created

          schema:

            type: object

            properties:

              id:

                type: integer

                example: 124

              name:

                type: string

                example: Jane Doe

              email:

                type: string

                example: mukesh@bhrikutisoft.com

This Swagger file describes a sample API that has two endpoints: /users and /users/{id}. The /users endpoint supports GET and POST requests for retrieving a list of users and creating a new user, respectively. The /users/{id} endpoint supports GET, PUT, and DELETE requests for retrieving, updating, and deleting a specific user, respectively.

The Swagger file includes information about the API's host, base path, schemes, and supported media types. It also includes definitions of the data models used by the API, such as the User object.