iphone - Posting http JSON request using NSJSONSerializer iOS -

iphone - Posting http JSON request using NSJSONSerializer iOS -

here code:

in .m

nsarray *keys = [nsarray arraywithobjects:@"training_code", @"training_duration",@"training_startdate",@"training_enddate",@"trainer_id",@"training_location",@"comments",@"keyword",@"numberofdays", nil]; nsarray *objects = [nsarray arraywithobjects:@"training_code", @"training_duration",@"training_startdate",@"training_enddate",@"trainer_id",@"training_location",@"comments",@"keyword",@"numberofdays", nil]; nsdata *jsondata; nsstring *jsonstring; nsdictionary *jsondictionary = [nsdictionary dictionarywithobjects:objects forkeys:keys]; if([nsjsonserialization isvalidjsonobject:jsondictionary]) { jsondata = [nsjsonserialization datawithjsonobject:jsondictionary options:0 error:nil]; jsonstring = [[nsstring alloc]initwithdata:jsondata encoding:nsutf8stringencoding]; } // sure escape url string. nsurl *url1 = [nsurl urlwithstring:@"http://xx.xx.xx.xxx/deployioscalender/service1.asmx"]; nsmutableurlrequest *request = [nsmutableurlrequest requestwithurl:url1]; [request sethttpmethod:@"post"]; [request sethttpbody: jsondata]; [request setvalue:@"application/json" forhttpheaderfield:@"content-type"]; [request setvalue:[nsstring stringwithformat:@"%d", [jsondata length]] forhttpheaderfield:@"content-length"]; nserror *errorreturned = nil; nsurlresponse *theresponse =[[nsurlresponse alloc]init]; nsdata *data = [nsurlconnection sendsynchronousrequest:request returningresponse:&theresponse error:&errorreturned]; if (errorreturned) { // handle error. } else { nserror *jsonparsingerror = nil; nsarray *jsonarray = [nsjsonserialization jsonobjectwithdata:data options:nsjsonreadingmutablecontainers|nsjsonreadingallowfragments error:&jsonparsingerror]; }

this returning me info as:

{ d = "[{\"training_code\":\"1234 \",\"training_duration\":\"2hrs \",\"training_startdate\":\"14/02/2013 15:00:00\",\"training_enddate\":\"14/02/2013 17:00:00\",\"trainer_id\":1,\"training_location\":\"b-wing training room-4\",\"comments\":\"c# training\",\"keyword\":\"c#1234\",\"numberofdays\":1},{\"training_code\":\"4321 \",\"training_duration\":\"16 \",\"training_startdate\":\"17/02/2013 10:30:00\",\"training_enddate\":\"17/02/2013 17:30:00\",\"trainer_id\":2,\"training_location\":\"a-wing training room-6\",\"comments\":\"objective-c\",\"keyword\":\"obj-c4321\",\"numberofdays\":2}]"; }

this not in right format. want create this:

[{"training_code":"1234 ","training_duration":"2hrs ","training_startdate":"14/02/2013 15:00:00","training_enddate":"14/02/2013 17:00:00","trainer_id":1,"training_location":"b-wing training room-4","comments":"c# training","keyword":"c#1234","numberofdays":1},{"training_code":"4321 ","training_duration":"16 ","training_startdate":"17/02/2013 10:30:00","training_enddate":"17/02/2013 17:30:00","trainer_id":2,"training_location":"a-wing training room-6","comments":"objective-c","keyword":"obj-c4321","numberofdays":2}

note: web service returning proper json format.

what additional things need accomplish this.please suggest.

you web service returning proper json, but it's not. should talk web services developer , find out why they're returning malformed json. put, getting web service cannot parsed json--unless string extraction (ugh).

consider response data, improve formatted:

{ d = " [ { \"training_code\":\"1234 \", \"training_duration\":\"2hrs \", \"training_startdate\":\"14/02/2013 15:00:00\", \"training_enddate\":\"14/02/2013 17:00:00\", \"trainer_id\":1, \"training_location\":\"b-wing training room-4\", \"comments\":\"c# training\", \"keyword\":\"c#1234\", \"numberofdays\":1 }, { \"training_code\":\"4321 \", \"training_duration\":\"16 \", \"training_startdate\":\"17/02/2013 10:30:00\", \"training_enddate\":\"17/02/2013 17:30:00\", \"trainer_id\":2, \"training_location\":\"a-wing training room-6\", \"comments\":\"objective-c\", \"keyword\":\"obj-c4321\", \"numberofdays\":2 } ] "; }

first, convert info response string:

nsstring *json = [[nsstring alloc] initwithdata:data encoding:nsutf8stringencoding];

then need strip off top:

{ d = "

and bottom

"; }

then can replace of escaped quotes using code:

json = [json stringbyreplacingoccurrencesofstring:@"\\\"" withstring:@"\""];

at point, string should parsable json this:

[ { "training_code":"1234 ", "training_duration":"2hrs ", "training_startdate":"14/02/2013 15:00:00", "training_enddate":"14/02/2013 17:00:00", "trainer_id":1, "training_location":"b-wing training room-4", "comments":"c# training", "keyword":"c#1234", "numberofdays":1 }, { "training_code":"4321 ", "training_duration":"16 ", "training_startdate":"17/02/2013 10:30:00", "training_enddate":"17/02/2013 17:30:00", "trainer_id":2, "training_location":"a-wing training room-6", "comments":"objective-c", "keyword":"obj-c4321", "numberofdays":2 } ]

so can this:

id object = [nsjsonserialization jsonobjectwithdata:[json datausingencoding:nsutf8stringencoding] options:0 error:&error];

now object should hold array containing 2 records dictionaries.

if me, though, go web services developer , demand prepare response they're sending you. shouldn't have deal of string extraction nonsense.

iphone ios objective-c json nsjsonserialization