Feature Request: Identifier for every request

[Pirdad Sakhizada]

Hi,

First of I would like to say, this is a great library that i've been using since IO 2013.

There's been a few times that I wished every request had the ability to take an id which could be passed along with the result on the callback functions.

Although, the library is extensible, I think this would be great to be handled on the base com.android.volley.Request class.

Example:

new Response.Listener<Model>() {

        @Override

        public void onResponse(long requestId, Model response) {

            // code here

        }

    }

AND

new Response.ErrorListener() {

        @Override

        public void onErrorResponse(long requestId, VolleyError error) {

            

             // code here

        }

    }

Thanks.

[Ficus Kirkpatrick]

What would you use this for?

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[Pirdad Sakhizada]

Recently, I wanted to use volley to make a bunch of requests through a service that would save the responses to disk and return the parsed object (basically an offline mode feature). Unlike a regular request on an Activity/Fragment, I would have to manage each of my requests.

I would need to know which ones are completed and which ones failed. I know that each request have #hasHadResponseDelivered() but it's not useful if you don't know which Request object to check on specially if you are implementing the listener interface instead of using it as anonymous class.

[Cheng Chi]

+1

My use case:

Some times the response is lost due to mobile network. Volley will retry the request automatically and server insert a new record for the second request. With a unique id in the request (and use same id in the retry request), I can add a cache layer on server, if there is a result for the request id, simply returns the result from previous response.