Best way to invoke Rest APIs from angularjs?

Question

From where should REST API request be invoked from angular js?

I.e. from controller, module, service, factory. I am totally confused that what should be the right w

Answer 1

Here's what I would regard as best practice:

• Use a factory service to handle the mechanics of access to the RESTful web api
• Inject the factory service into the controller that needs access
• Use a promise in the factory to resolve or reject the response from the $http call
• The promise allows the controller to determine how it should respond to the result of the RESTful call. For example, it may want to invoke a toast popup to notify the user of any problem.

This maintains good separation between the data service layer, the business logic and the front-facing UI. It also limits any consequences of changes to any one layer, to other layers.