如何将变量从app.js传递给routes / index.js？

问题描述

我正在使用shrinkroute 来链接的NodeJS。我得到错误500 ReferenceError：shrinkr没有定义

I'm using shrinkroute https://npmjs.org/package/shrinkroute to make links in nodejs. I get error 500 ReferenceError: shrinkr is not defined

如何将shrinkroute传递给routes / index.js？有没有更好的方法通过传递查询字符串args来创建url？

How to pass shrinkroute to routes/index.js? Is there a better way to create url by passing query string args?

//app.js
var app = express();

var shrinkr = shrinkroute( app, {
    "user": {
        path: "/user/:id?",
        get: routes.showOrListUsers
    }
});
//url method works in app.js
var url = shrinkr.url( "user", { id: 5, page:40, type:'a' } );
console.log(url);

app.use( shrinkr.middleware );

//routes/index.js
exports.showOrListUsers = function(req, res, next) {
    console.log(req.params);
    //shrinkr errors out in index.js
    var url2 = shrinkr.url( "users", {name: "foo"});
    console.log(url2);
}

推荐答案

一个解决方案是存储您的应用对象中的 shrinkr 使用：

One solution would be to store shrinkr in your app object using app.set:

// app.js
...
app.set('shrinkr', shrinkr);
...

在 routes / index.js ，您可以通过 req.app 或 res.app 对象访问它：

exports.showOrListUsers = function(req, res, next) {
  var shrinkr = req.app.get('shrinkr');
  ...
};

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