openapi: 3.0.3
info:
  title: URL shortener
  version: 0.1.0
  description: An URL shortener service.
paths:
  "/{hash}":
    get:
      responses:
        "307":
          description: Redirect client to long URL.
          headers:
            Location:
              schema:
                type: string
              description: Long URL
        "404":
          description: Not Found
      description: Redirect client to long URL.
    parameters:
      - schema:
          type: string
        name: hash
        in: path
        required: true
        description: Hash of shorten URL.
  /create:
    post:
      requestBody:
        description: Create a shorten URL
        required: true
        content:
          application/json:
            schema:
              type: object
              properties:
                url:
                  type: string
                  description: URL to shorten
                  example: "https://example.com"
              required:
                - url
      responses:
        "201":
          description: Succesfully created shorten URL.
          content:
            application/json:
              schema:
                type: object
                properties:
                  shorten:
                    type: string
                    description: Created shorten URL. Going to this URL should redirect to URL from request body.
              examples: {}
        "400":
          description: Bad Request
          content:
            application/json:
              schema:
                type: object
                properties:
                  message:
                    type: string
              examples:
                Example 1:
                  value:
                    message: URL already exist.
components:
  schemas: {}