PUT request status code 500? - ios

Question

I have an implementation of a PUT request in Objective C. The request is successful when executed externally from iOS / Objective C using Postman but returns an error (status code 500) when called within Objective C. As far as I can see, the implementation mirrors the way the call is set up in Postman. Here is the call I am trying to mirror using Objective C:
And here is my implementation in Objective C:
- (void)callUnregisterForPushNotifications:(NSString *)accessToken
pushToken:(NSString *)pushToken
completionBlock:(void (^)(NSMutableArray *resultsArray))completion{
NSLog(#"UNREGISTER FOR PUSH CALLED!");
NSLog(#"PUSH TOKEN %#", pushToken);
NSString *appendUrl = #"alerts/unregisterpush/";
NSLog(#"APPEND URL %#",appendUrl);
NSURL *unregisterUrl = [NSURL URLWithString:[NSString stringWithFormat:#"%#%#", BaseURLString, appendUrl]];
NSLog(#"UNREGISTER URL: %#",unregisterUrl);
NSMutableURLRequest *request = [NSMutableURLRequest requestWithURL:unregisterUrl
cachePolicy:NSURLRequestUseProtocolCachePolicy
timeoutInterval:30.0];
[request setHTTPMethod:#"PUT"];
NSString *appendToken = [NSString stringWithFormat:#"Bearer %#", accessToken];
NSLog(#"TOKEN: %#",appendToken);
[request addValue:appendToken forHTTPHeaderField:#"Authorization"];
NSString *postString = [NSString stringWithFormat:#"Guid=%#",pushToken];
NSLog(#"POST STRING: %#",postString);
[request setHTTPBody:[postString dataUsingEncoding:NSUTF8StringEncoding]];
NSLog(#"REQUEST %#",request);
[NSURLConnection sendAsynchronousRequest:request
queue:[NSOperationQueue mainQueue]
completionHandler:^(NSURLResponse *response, NSData *data, NSError *error) {
NSLog(#"UNREGISTER PUSH NOTIFICATIONS RESPONSE: %#", response);
NSLog(#"UNREGISTER PUSH NOTIFICATIONS ERROR: %#", error);
NSLog(#"UNREGISTER PUSH NOTIFICATIONS DATA: %#", data);
NSData *_data = data;// ... whatever
NSMutableString *_string = [NSMutableString stringWithString:#""];
for (int i = 0; i < _data.length; i++) {
unsigned char _byte;
[_data getBytes:&_byte range:NSMakeRange(i, 1)];
if (_byte >= 32 && _byte < 127) {
[_string appendFormat:#"%c", _byte];
} else {
[_string appendFormat:#"[%d]", _byte];
}
}
NSLog(#"UNREGISTER PUSH RESPONSE: %#", _string);
id obj= [NSJSONSerialization JSONObjectWithData:data options:0 error:&error];
if (!obj) {
//NSLog(#"REGISTER PUSH NOTIFICATIONS ERROR: %#", error);
} else {
//NSLog(#"REGISTER PUSH NOTIFICATIONS DATA: %#", obj);
if(completion) {
[[UIApplication sharedApplication] setNetworkActivityIndicatorVisible:NO];
completion((NSMutableArray*)obj);
}
//self.accessToken = [obj valueForKey:#"access_token"];
//NSLog(#"ACCESS TOKEN: %#",self.accessToken);
}
}];
}
Any input / help would be greatly appreciated, thanks in advance!

Answer 1

This line:
NSString *postString = [NSString stringWithFormat:#"Guid=%#",pushToken];
Doesn't match what you are showing in Postman.
Missing { } around the object
Missing " " around the field and value
The Accept and Content-type header are missing