CODEWITHSUNDEEP
node.js
Adam Genshaft
Adam Genshaft

Reputation: 824

making event in module.exports functions

I'm trying to make a module with an even that I could call from the index file (after a require). My code includes var events = require("events"); and I've wrote only the tricky part here.

index.js:

var reqw = require('./module.js');
reqw.on('data', function(d) {
    console.log(d);
});

module.js:

module.exports = {
    listaccts: function() {
        events.EventEmitter.call(this);
    }
}
util.inherits(exports.listaccts, events.EventEmitter);
exports.listaccts.prototype.listme = function() {
    thisList = this;
    var req = https.request(requestOptions, function(res) {
        res.on('data', function(chuck) {
            store = chuck;
        });
        res.on('end', function(d) {
            thisList.emit("data", store.toString());
        });
    });
}

Searched the whole we and yet to find a proper answer..

Upvotes: 1

Views: 3830

Answers (1)

eenagy
eenagy

Reputation: 971

Modified your code slightly :

module.js

function listaccts(){

}
util.inherits(listaccts, EventEmitter);
listaccts.prototype.listMe = function(){
    var self = this;
    var store = [];
    console.log('here');
    var req = https.request(requestOptions, function(res) {
        res.on('data', function(chuck) {
            console.log('data');
            store.push(chuck);
        });
        res.on('end', function() {
            console.log('end');
            self.emit("data", store);
        });
    });
    req.end();
};

module.exports = listaccts;

index.js

var reqw = require('./module');
var obj = new reqw();
obj.listMe();
obj.on('data', function(err, data) {
    console.log(err);
});

req.end is important, I have forgot to include and got a never-ending cycle.

Created instance for binding this, so no need for EventEmitter.call. Maybe you want to the listMe function to inside your constructor.

Hope this help.

Upvotes: 1

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