fundon / co-ware Goto Github PK

It's kinda nice convenience I like about koa that you can call use with dynamic number of middlewares to use. It's super handy for building the list dynamically and then adding at once.

What if i want to abort from a middleware by returning some value , let's take this example

var ware    = require("co-ware")
var w         = ware()
var auth    = false

w
.use(function *(next){
   if(!auth){
     return "You are not logged in"
   }
  yield next
})
.use(function *(next){
   console.log("Final handler")
})
.on("error",function(err){
   console.log(err.stack)
})

w.run()

Is there any way to get the message returned from the middleware which says "You are not logged in"

虽然参考ware,但个人认为某些地方不妥。

1. run的回调应作为co的回调执行，而不是作为中间件
2. 无论如何, 但run的回调存在, 必须保证执行，第一个参数为 error.(这也是1的缘由)