objective c - RestKit - Repeat request if auth timeout -

i'm talking .net web api 2 service, using it's default "individual user accounts" authentication. i'm using restkit 0.22.0.

my issue when session timeout occurs, want have ios app re-authenticate stored credentials , replay request. way i've found like this - asked year ago. not think answer should check if status code 401, re-authenticate, retry request in every failure block. that's lot of copy , pasting!

is there better way accomplish want?

call common method failure block takes required inputs. preferably might want have multiple common methods capable of verifying response details , restarting process automatically (so 1 get, 1 post, ...).

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pseudo code

- (void)do info:  {     ... calculate method specifics call general method ...     [self getobjectsatpath:urlarg parameters:p success:s]; }  - (void)getobjectsatpath:urlarg               parameters:p                  success:s {     [rk getobjectsatpath:urlarg               parameters:nil                  success:      { -- yay -- call success callback        s();      }                  failure:      { -- humph -- retry        ... auth updates, retry ...        [self getobjectsatpath:urlarg parameters:p success:s];      } }