open-api.text.yaml

gistfile1.txt

openapi: 3.0.0
info:
  title: Mateus API
  description: A simple API with one route
  version: 1.0.0
paths:
  /hello:
    get:
      summary: Get a friendly greeting
      description: Returns a simple greeting message
      responses:
        '200':
          description: Successful response
          content:
            application/json:
              example: { "message": "Hello, world!" }