middleware-injector

Node.js middleware dependency injection tool.

Install

npm install middleware-injector

Usage

parseToken = (req, res, next) ->
  req.token = req.cookies.token
  next()

accountInfo = (req, res, next) ->
  req.inject [parseToken], ->
    mAccount.authenticate req.token, (account) ->
      req.account = account
      next()

errorHandling = (req, res, next) ->
  res.error = (name, param) ->
    param = _.extend param, error: name
    res.json 400, param
  next()

requestAuthenticate = (req, res, next) ->
  req.inject [accountInfo, errorHandling], ->
    if req.account
      next()
    else
      if req.method == 'GET'
        res.redirect '/account/login/'
      else
        res.error 'auth_failed'