An API is a set of definitions and protocols for building and integrating application software. API stands for application programming interface.
How it works:
// for example
let data = new FormData();
data.append('email', 'asd@asd.com');
data.append('password', 'test');
//
MyObject.api.signup(data, function(successData){
// promise success
}, function(error){
//promise errorData
}, null);
//