gistfile1.txt

13> X3 = riakc_obj:new(<<"b">>, <<"k">>, <<"{\"v\":123}">>, <<"application/json">>).
{riakc_obj,<<"b">>,<<"k">>,undefined,[],
           {dict,1,16,16,8,80,48,
                 {[],[],[],[],[],[],[],[],[],[],[],[],[],[],[],...},
                 {{[],[],[],[],[],[],[],[],[],[],[[<<...>>|...]],[],[],...}}},
           <<"{\"v\":123}">>}
14> riakc_obj:get_update_content_type(X3).                                          
<<"application/json">>
15> riakc_pb_socket:put(Pid, X3).                                                   
ok
16> {ok, X4} = riakc_pb_socket:get(Pid, <<"b">>, <<"k">>).                          
{ok,{riakc_obj,<<"b">>,<<"k">>,
               <<107,206,97,96,96,96,202,96,202,5,82,44,204,143,110,148,
                 101,48,37,50,230,177,50,...>>,
               [{{dict,2,16,16,8,80,48,
                       {[],[],[],[],[],[],[],[],[],[],[],[],...},
                       {{[],[],[],[],[],[],[],[],[],[],...}}},
                 <<"{\"v\":123}">>}],
               undefined,undefined}}
17> riakc_obj:get_update_content_type(X4).                
undefined
18> riakc_obj:get_content_type(X4).       
undefined