NodeJs how to pass variable into export function

Question

I have NodeJs restful api made by tutorial. And in my endpoint I want to pass export function. For example:

// main.js
REST_ROUTER.prototype.handleRoutes = function(router, connection, md5) {
    router.get("/create", function(req, res) {
        var query = ... 
        connection.query(query,function(err, row) {...}
    });
}

But I want to do it like this:

// main.js
var example = require('./example.js');

REST_ROUTER.prototype.handleRoutes = function(router, connection, md5) {
    router.get("/create", example.create);
}

// example.js
exports.create = function(req, res) {
    var query = ... 
    connection.query(query,function(err, row) {...}
}

However, my connection is not available in example.js. How can I pass it?

exports.connection.<stuff>...?

Cerbrus
– Cerbrus

2016-02-23 07:34:04 +00:00
Commented Feb 23, 2016 at 7:34 — Cerbrus
– Cerbrus, Commented Feb 23, 2016 at 7:34
@Cerbrus can you explain pls?

user256968
– user256968

2016-02-23 07:39:43 +00:00
Commented Feb 23, 2016 at 7:39 — user256968
– user256968, Commented Feb 23, 2016 at 7:39
Just a guess. Don't mind me 😉

Cerbrus
– Cerbrus

2016-02-23 07:40:12 +00:00
Commented Feb 23, 2016 at 7:40 — Cerbrus
– Cerbrus, Commented Feb 23, 2016 at 7:40

nitishagar · Accepted Answer · 2016-02-23 07:36:39Z

3

Something like this might help:

// main.js
var example = require('./example.js');

REST_ROUTER.prototype.handleRoutes = function(router, connection, md5) {
    router.get("/create", example.create(connection));
}

// example.js
exports.create = function(connection) {
    return function(req, res) {
       var query = ... 
       connection.query(query,function(err, row) {...}
    }
}

answered Feb 23, 2016 at 7:36

nitishagar

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Comments

Jagdish Idhate · Accepted Answer · 2016-02-23 07:42:34Z

1

Bind example to create example.create.bind(example,connections)

// main.js
var example = require('./example.js');

REST_ROUTER.prototype.handleRoutes = function(router, connection, md5) {
    router.get("/create", example.create.bind(example,connections));
}

// example.js
exports.create = function(connection, req, res) {
    var query = ... 
    connection.query(query,function(err, row) {...}
}

edited Feb 23, 2016 at 7:42

answered Feb 23, 2016 at 7:37

Jagdish Idhate

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