How to create a 'chaining' JavaScript API with intermediate 'fluent' verbage?

Question

I am creating js sdk, where I am looking for creating user (API)/ user call function like;

var user = new user();

user.message.to("username").get.friendlist(function(data){
    //process data received from callback.
});

Now, I know that method chaining can be done, and I am able to make something like

function User(Name) {
    this.uname = Name;
}

User.prototype = {
    constructor: User,

    MessageTo: function (username) {
        this.uname = username;
        return this;
    },

    getFriendList: function (callback) {
        callback("My list");
    }
}

and I can use it as below after creating object of User();

user.messageTo("username").getFriendList(function(data){
});

But I have no Idea about how to get the method call like what I am looking for as;

user.message.to("username").get.friendlist(function(data){
});

Evan I am not sure if it is possible or not. Any help or pointer with same regards is appreciated.

Can you please show us how you are able to make the `getFriendList` chaining example? — Bergi, May 20 '15 at 06:11
To me `.get('friendlist', function(data) {` makes more sense. — Ram, May 20 '15 at 06:14
@Vohuman , yes its a option but I have to do it other way ...!! — H. Mahida, May 20 '15 at 06:22
possible duplicate of https://stackoverflow.com/questions/15884096/organize-prototype-javascript-while-perserving-object-reference-and-inheritance or https://stackoverflow.com/questions/16502467/prototype-deep-scope-of-this-to-access-instances-scope — Bergi, May 20 '15 at 06:24
I don't understand. What's wrong with `user.messageTo("username").getFriendList(callback)`? — Aadit M Shah, May 20 '15 at 07:10
@AaditMShah yes, there is nothing wrong with it, it just to make more verbiage..! — H. Mahida, May 20 '15 at 07:30

score 1 · Accepted Answer · answered May 25 '15 at 13:14

As, commented by other member, there are other option to do same thing, but as I have to do it the way I needed here is how we managed to do that.

This solution fits in my requirement, so may be not best suited in other cases.

sdk.js

var User = function(){
UserName = null;
this.message = {

to : function(uname){

  UserName = uname   
  alert('called to '+uname);

  this.get = {
    friendlist : function(callback){
      console.log('called friendlist');
        callback('Hello friendlist :: '+ UserName);
    }
  }
  return this;
  }
  };
}

and using it like;

  var user1 = new User();

  user1.message.to('H.Mahida').get.friendlist(function(data){
      alert('call back says '+ data);
  });

Here is link to jsfiddle

Hope it may be useful to some one or guide in same direction...!!!

How to create a 'chaining' JavaScript API with intermediate 'fluent' verbage?

1 Answers1