openapi: 3.0.3
info:
  title: LX Trading API
  version: 1.0.0
servers:
  - url: http://localhost:8080/api/v1
paths:
  /orders:
    post:
      summary: Submit order
      requestBody:
        content:
          application/json:
            schema:
              type: object
              properties:
                symbol:
                  type: string
                side:
                  type: string
                  enum: [buy, sell]
                quantity:
                  type: number
                price:
                  type: number
      responses:
        '201':
          description: Order created