ios - AFNetworking 3 x-www-form-urlencoded post data -

i'm trying post data x-www-form-urlencoded body. posting via postman, ok

but cant via afnetworking 3. here code

nsdictionary *parameters = @{@"login"   : email,                              @"password": password};  nserror *error; nsdata *jsondata = [nsjsonserialization datawithjsonobject:parameters                                                    options:0                                                      error:&error]; nsstring *jsonstring = [[nsstring alloc] initwithdata:jsondata encoding:nsutf8stringencoding];  self.requestserializer = [afjsonrequestserializer serializer];  nsstring *urlstring = [nsstring stringwithformat:@"%@/%@", httpbaserequesturl, appendloginurl];  nslog(@"url %@\njsonstring %@", urlstring, jsonstring);   [self post:urlstring parameters:nil constructingbodywithblock:^(id<afmultipartformdata>  _nonnull formdata) {     [formdata appendpartwithformdata:jsondata name:@"data"]; } progress:nil success:^(nsurlsessiondatatask * _nonnull task, id  _nullable responseobject) {             onsuccess(responseobject); } failure:^(nsurlsessiondatatask * _nullable task, nserror * _nonnull error) {     nsstring *errordescription = [nserror servererrormessagefromdata:(nsdata *)error.userinfo[afnetworkingoperationfailingurlresponsedataerrorkey]];     nsinteger statuscode = [nshttpurlresponse errorcode:(nshttpurlresponse*)task.response];      networkrequesterror *requesterror = [[networkrequesterror alloc] initwithtype:                                          (nshttpurlresponse*)task.response ? networkrequesterrortypeservererror : networkrequesterrortypenoconnection                                                                       description:                                          (nshttpurlresponse*)task.response ? errordescription : nil];     requesterror.statuscode = statuscode;      nslog(@"error server: %@, status code = %ld, error type = %lu", requesterror.errordescription, (long)requesterror.statuscode, (unsigned long)requesterror.type);     onfailure(requesterror); }]; 

please, me understand how correctly this. thanks!

after commenting found answer this. here's correctly functioning request now, note addition of

[manager.requestserializer setvalue:@"application/x-www-form-urlencoded; charset=utf-8" forhttpheaderfield:@"content-type"]; 

here's full code:

nsstring *url = [nsstring stringwithformat:@"%@%@",apibase,apiuserendpoint];  nsdictionary* parametersdictionary = [nsdictionary dictionarywithobjectsandkeys:                           username, @"username",                           password, @"password",                           nil                           ];  afhttpsessionmanager *manager = [[afhttpsessionmanager alloc]initwithsessionconfiguration:[nsurlsessionconfiguration defaultsessionconfiguration]];     [manager.requestserializer setvalue:@"application/x-www-form-urlencoded; charset=utf-8" forhttpheaderfield:@"content-type"];     manager.requestserializer = [afhttprequestserializer serializer];  [manager post:url parameters:parametersdictionary progress:nil success:^(nsurlsessiondatatask * _nonnull task, id  _nullable responseobject) {     nslog(@"%@",responseobject); } failure:^(nsurlsessiondatatask * _nullable task, nserror * _nonnull error) {     nslog(@"%@",error); }];