koa-joi v1.0.0

koa-joi

Koa middleware for validating requests using @hapi/joi

Version 2.x is a complete re-write of this library to support Koa2 and @hapi/joi.

Version 1.x can be found on the v1 branch and was originally created by Pierre Inglebert

Installation

npm install koa-joi

Example

import Koa from 'koa'
import Joi from '@hapi/joi'
import bodyParser from 'koa-bodyparser'
import { validateBody } from 'koa-joi'

/**
 * Init application
 *
 * @constant {Koa} app
 */
const app = new Koa()
app.use(bodyParser())

/**
 * Request body schema
 *
 * @constant {Joi.Schema} bodySchema
 */
const bodySchema = Joi.object({
  name: Joi.string().required()
})
app.use(validateBody(bodySchema))

/**
 * Function logic
 *
 * @param {Koa.Context} ctx
 */
ctx.use(async (ctx) => {
  const { name } = ctx.request.body
  ctx.body = `Hello, ${name}`
  ctx.status = 200
})

// start server
app.listen(3000)
console.info('listening at http://127.0.0.1:3000')