CODEWITHSUNDEEP
angularjshttpwrapperprovider
rahulmr
rahulmr

Reputation: 681

providers with $http wrapper angularjs

I would like to know whether we can create a provider in angularjs which will replace the $http operation .which means where we can use this provider in other modules where we can make use of these $http operation. The reason why provider has to be taken is because we can configure the http parameters like the api path, request type .

Also can we have logging/exception handling mechanism inside the provider so that the modules(eg: any other factories) which inherit the provider wont need to do any extra logging/exception mechanisms. Is there any way to have some loading screen using this provider when http requests are made ?

Upvotes: 1

Views: 887

Answers (1)

gkalpak
gkalpak

Reputation: 48211

For the things you mentioned, you don't need another provider, because $http has the concept of interceptors.

Interceptors can specify different callbacks to be executed at different phases:

  • request (runs before any request is sent): It can modify the configuration (e.g. the request URL, method etc). It could also be used to show some loading message/animation (e.g. using some property on the $rootScope).

  • requestError (runs when there is an error before sending the request): It can be used for logging, recovering, exception handling.

  • response (runs after any response is received): It can be used for logging. It could also be used to hide the loading message/animation. (Don't forget to also handle this on response error.)

  • responseError (runs when there is an error regarding the response (e.g. bad request)): It can be used for logging, recovering, exception handling.

If interceptors do not cover your needs, you could use $provide's decorator to monkey-patch, augment or totally replace the $http service:

.config(function ($provide) {
    $provide.decorator('$http', function ($delegate) {
        var newHttp = $delegate;   // or a totally new object
        // ...monkey-patch newHttp or define new methods or whatever
        return newHttp;
    });
});

Upvotes: 4

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