ktor-sample

Live-coding a web server with Ktor

Ktor is a Kotlin framework dedicated to building asynchronous servers and clients in connected systems. In this session, I will explain and demo the core concepts of Ktor 2 by live coding an HTTP server from scratch using Ktor Server. Also, we’ll take an overview of Ktor Client, from setting it up to making requests and installing plugins.

Getting Started

The purpose of this live session will be to send a POST request with a list of names to our web server and our web server will send a random value from this list. It’s a very simple call but it covers a lot of things from Ktor.

openapi: 3.0.3
info:
  version: 1.0.0
  title: Am Stram Gram
  description: We are hiring
  contact:
    email: tech@innovorder.fr

servers:
  - url: http://localhost:8080

paths:
  "/random":
    post:
      summary: Randomize
      operationId: randomize
      requestBody:
        content:
          application/json:
            schema:
              $ref: "#/components/schemas/PostRandomRequest"
        description: Value we want to randomize
        required: true
      responses:
        "201":
          description: Returns a random value
          content:
            application/json:
              schema:
                $ref: "#/components/schemas/PostRandomResponse"							
components:
  schemas:
    PostRandomRequest:
      type: object
      required:
        - names
      properties:
        names:
          type: array
          items:
            type: string
    PostRandomResponse:
      type: object
      required:
        - random
      properties:
        random:
          type: string

GitHub

View Github