android - Handling server errors with Retrofit -

it great if share knowledge me! here problem - have android app. , server. of calls client needs send obtained token server legit limited amount of time. if happens token not valid more, error returned sever, new token needs obtained , need retry request.

but how can handle such behavior retrofit? thoughts?

thank in advance!

how try , make request callback, if callback failure , error message token needs obtained, request new token example:

        connectioninterface.getsomestuff(object, new callback<objectpojo>() {             @override             public void success(objectpojo objectpojo, response response) {                 //success             }              @override             public void failure(retrofiterror error) {                 if (error.getlocalizedmessage().equals("token expire error")                     connectioninterface.gettoken();             } 

then in retrofit gettoken callback, if success redo getsomestuff method , if failure, let user know. example:

        connectioninterface.gettoken(token, new callback<token>() {             @override             public void success(token token, response response) {                 //success , token has been added                 //add token request somehow...                 connectioninterface.updatetoken(token);                 connectioninterface.getsomestuff();             }              @override             public void failure(retrofiterror error) {                 //error let user know             } 

let me know if have other question. think easiest way of doing it.