Koa-cast-joi NPM

koa-cast-joi

Koa casting middleware using Joi.

Usage

import Koa from 'koa'

import Joi from 'joi'
import cast from 'koa-cast-joi'

const app = new Koa()

const schema = Joi.object().keys({
  page: Joi.number().default(1)
})

// app.use(cast({ 'request.query': schema }))
app.use(cast.query(schema))

app.use((ctx, next) => {
  console.log('next:', ctx.request.query.page + 1)
  return next()
})

Install

npm install koa-cast-joi joi

Note: Joi is a peer dependency, so it must be installed independently.

API

`cast(schemata, [options], [callback])`

Cast app.context by given schemata and options

schemata is map of paths to coresponding Joi schemas
options is passed to Joi.validate
- options.context is app.context by default
callback is passed to Joi.validate