CODEWITHSUNDEEP
loopbackjs
Jonathan Eustace
Jonathan Eustace

Reputation: 2489

Extend a LoopbackJS endpoint method

I'd like to extend the user login POST method in loopback.

So far I have extended the base user class to roll out my own, however how do I add functionality to a particular endpoint?

Upvotes: 0

Views: 67

Answers (1)

Jonathan Eustace
Jonathan Eustace

Reputation: 2489

In this example I've created a new model called "UserAuth2" which extended the existing User model provided by LoopbackJS. I've created the model using the slc loopback:model tool.

In order to extend a function in Loopback use the following code within your model's JS file : 

module.exports = function(UserAuth2) {
   // Get reference to endpoint
   var previousImplementation = UserAuth2.login;

   // Create new implementation of endpoint
   UserAuth2.login = function(){

   //Get existing implementation
   /*** arguments is an array of existing arguments that the login 
      function takes***/

   previousImplementation.apply(this, arguments);

   //Extend the method and do something else here
   console.log("New functionality");
   }
}

Upvotes: 1

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