koa-body-validator v1.0.1

koa-body-validator

A simple koa-router body validator middleware based on Joi.

Usage

This package requires koa-body or an alternative body-parser that saves the parsed body in koas context object (ctx.request.body).

const Koa = require('koa')
const koaBody = require('koa-body')
const router = require('koa-router')()

const {Joi, bodySchema} = require('koa-body-validator')

const app = new Koa()

app.use(koaBody())

router.post('/', bodySchema({ name: Joi.string().min(5).max(128).required(), email: Joi.string().email().required(), password: Joi.string().regex(/^a-zA-Z0-9{3,30}$/).required(), birthyear: Joi.number().integer().min(1900).max(2007), }), async ctx => { try { ctx.validate()

  ctx.body = {
     name:     ctx.request.body.name,
     email:    ctx.request.body.email,
     password: ctx.request.body.password
  }

} catch(err) { ctx.body = err.message } })

app.use(router.routes()) app.use(router.alloweMethods())

app.listen(8080)

For more instructions on how to define the schema, see [the detailed Joi API Reference](https://github.com/hapijs/joi/blob/v14.3.1/API.md).