Hi,Thought I'd point out what may be a problem with AGSJSONRequestOperation (or at least something that should be mentioned in the documentation). Anyway, following the directions on the page http://help.arcgis.com/en/arcgismobile/10.0/apis/iOS/2.0/concepts/00pw/00pw0000004w000000.htm:I found a quirk with the json that it is capable of returning. It appears that they key "error" is not accepted.
{"error": "The login credentials are not valid."}
returns an error in the api:
2011-08-23 13:02:50.896 LNOSitRep[6324:ec03] -[NSCFString allKeys]: unrecognized selector sent to instance 0x6292700
2011-08-23 13:02:50.899 LNOSitRep[6324:ec03] *** Terminating app due to uncaught exception 'NSInvalidArgumentException', reason: '-[NSCFString allKeys]: unrecognized selector sent to instance 0x6292700'
*** Call stack at first throw:
(
0 CoreFoundation 0x01b855a9 __exceptionPreprocess + 185
1 libobjc.A.dylib 0x01cd9313 objc_exception_throw + 44
2 CoreFoundation 0x01b870bb -[NSObject(NSObject) doesNotRecognizeSelector:] + 187
3 CoreFoundation 0x01af6966 ___forwarding___ + 966
4 CoreFoundation 0x01af6522 _CF_forwarding_prep_0 + 50
5 LNOSitRep 0x0001fc3a -[AGSJSONRequestOperation processResultData:] + 593
6 LNOSitRep 0x000215ee -[AGSRequestOperation requestOperationDidFinishLoading:] + 716
7 LNOSitRep 0x000212d4 -[AGSRequestOperation connectionDidFinishLoading:] + 79
8 Foundation 0x01581112 -[NSURLConnection(NSURLConnectionReallyInternal) sendDidFinishLoading] + 108
9 Foundation 0x0158106b _NSURLConnectionDidFinishLoading + 133
10 CFNetwork 0x0216c48e _ZN19URLConnectionClient23_clientDidFinishLoadingEPNS_26ClientConnectionEventQueueE + 220
11 CFNetwork 0x022376e1 _ZN19URLConnectionClient26ClientConnectionEventQueue33processAllEventsAndConsumePayloadEP20XConnectionEventInfoI12XClientEvent18XClientEventParamsEl + 293
12 CFNetwork 0x022379cf _ZN19URLConnectionClient26ClientConnectionEventQueue33processAllEventsAndConsumePayloadEP20XConnectionEventInfoI12XClientEvent18XClientEventParamsEl + 1043
13 CFNetwork 0x02162c80 _ZN19URLConnectionClient13processEventsEv + 100
14 CFNetwork 0x02162acf _ZN17MultiplexerSource7performEv + 251
15 CoreFoundation 0x01b668ff __CFRUNLOOP_IS_CALLING_OUT_TO_A_SOURCE0_PERFORM_FUNCTION__ + 15
16 CoreFoundation 0x01ac488b __CFRunLoopDoSources0 + 571
17 CoreFoundation 0x01ac3d86 __CFRunLoopRun + 470
18 CoreFoundation 0x01ac3840 CFRunLoopRunSpecific + 208
19 CoreFoundation 0x01ac3761 CFRunLoopRunInMode + 97
20 GraphicsServices 0x025f41c4 GSEventRunModal + 217
21 GraphicsServices 0x025f4289 GSEventRun + 115
22 UIKit 0x00de5c93 UIApplicationMain + 1160
23 LNOSitRep 0x00002629 main + 121
24 LNOSitRep 0x000025a5 start + 53
)
terminate called throwing an exception
I was able to fix it by using the following as my result instead
{"errorMessage": "The login credentials are not valid."}
I just thought that I should mention it, because it seems that using the { "error": "message" } convention may be obvious (and used in other esri REST services). If this is actually a problem on my end please tell me, I'd like to know.Thanks
