@nswbmw/kless

Kless

A MVC framework inspired by FaaS, based on koa.

Installation

$ npm i @nswbmw/kless --save

Scaffold

see create-kless-app.

Example

simple

const Kless = require('@nswbmw/kless')
const app = new Kless()
 
app.route({
  name: 'User.getUserById',
  controller: async (ctx, next) => {
    ctx.body = ctx.query.id
  }
})
 
app.listen(3000)
 
/*
$ curl localhost:3000/User.getUserById?id=123
123
*/

complex

const Kless = require('@nswbmw/kless')
const app = new Kless()
 
app.service('User', {
  async getUserById (uid) {
    return this.randomUser(uid)
  },
 
  async randomUser (uid) {
    return {
      uid,
      name: Date.now(),
      age: Math.floor(Math.random() * 100)
    }
  }
})
 
app.controller('User.getUserById', async function getUserById (ctx, next) {
  ctx.body = await app.service.User.getUserById(ctx.query.id)
})
 
app.route({
  name: 'User.getUserById',
  controller: app.controller.User.getUserById
})
 
app.listen(3000)
 
/*
$ curl localhost:3000/User.getUserById?id=123
{"uid":"123","name":1547619443338,"age":18}
*/

Validator

const Kless = require('@nswbmw/kless')
const app = new Kless()
 
app.route({
  name: 'User.getUserById',
  controller: [
    app.middleware.validator({
      query: {
        id: { type: Kless.Types.Number, required: true }
      }
    }),
    async (ctx, next) => {
      ctx.body = ctx.query.id
    }
  ]
})
 
app.listen(3000)
 
/*
$ curl localhost:3000/User.getUserById
($.query.id: undefined) ✖ (required: true)
$ curl localhost:3000/User.getUserById?id=test
($.query.id: "test") ✖ (type: Number)
$ curl localhost:3000/User.getUserById?id=123
123
*/

More validators usage see another-json-schema.

Array controllers

const bodyParser = require('koa-bodyparser')
const Kless = require('@nswbmw/kless')
const app = new Kless()
 
app.route({
  name: 'User.createUser',
  controller: [
    bodyParser(),
    async (ctx, next) => {
      ctx.body = ctx.request.body
    }
  ]
})
 
app.listen(3000)

API

app.middleware(name, fn) app.middleware(name, obj)

• name(String): middleware name.
• fn(Function)|obj(Object): middleware function or object.

app.route(obj)

• name(String): route name, mapping to a router, eg: User.createUser -> /User.createUser.
• controller(Function|AsyncFunction|[Function|AsyncFunction]): router controller.

app.controller(name, fn) app.controller(name, obj)

• name(String): controller name.
• fn(Function)|obj(Object): controller function or object.

app.service(name, fn) app.service(name, obj)

• name(String): service name.
• fn(Function)|obj(Object): service function or object.

NB: When use object as service's second parameter, you can use this in function that reference to obj.

Test

$ npm test (coverage 100%)

License

MIT