如何在Express.js中的控制器之间共享通用逻辑? [英] How to share the common logic between controller in Express.js?

问题描述

我用快递来建立我的网站，我有一个特殊的要求.我将路由器设置如下:

I had used the express to build my website, and I have a special require.I had set the routers as follow:

/* home */
app.get('/', function (req, res, next) {
    homeRacingHandle(req,res);
});

/* racing list */
app.get('/racing',function (req, res, next) {
    homeRacingHandle(req,res);
});

主页和

There is just a few differents between the home page and the racing list page. My method to process the common logic is like above.And the homeRacingHandle function according the variable isHome to decide which page to render.

    var location = req.path.split('?').toString();
    var isHome = location==='/' && true || false;

此方法对我有用.但是我不知道是否有一个很好的处理方法.还有其他最佳实践吗?

This method works for me.But I don't know wether is a good way to process.Are there any other best practice?

推荐答案

您可以使用curring来简化

You could use currying to simplify this

curryHomeRacing = require('./handler');

/* home */
app.get('/', curryHomeRacing('home'));

/* racing list */
app.get('/racing', curryHomeRacing('racing'));

在另一个文件handler.js中

In another file handler.js

//in handler.js

module.exports = function curryHomeRacing(route){
    return function(req, res) {
        homeRacingHandle(req, res, route);
    };
}

function homeRacingHandle(req, res, route) {
    if (route === 'home') {
        //do home stuff
    } else if (route === 'racing') {
        //do racing stuff
    }
}

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