How to send JSON-data in post request Objective-C?

Question

I get an error while I send Json data to server. I used the following code to change the NSMutableDictionary To JSON.

NSString* jsonString1 = [postDict JSONRepresentation];
NSLog(@"%@",jsonString1);

JSON Format:

         {"user_email":"[email protected]","firstname":"nivrit","user_password":"1234","confirm_passward":"1234"}

I use the following method to send this JSON format to server:

NSMutableDictionary *responseDict = 
    (NSMutableDictionary *)[[mWebServiceHelperOBJ 
              makeCallToURL:@"register.php" 
              withDataPost:jsonString1] JSONValue];

When I implemented this code I received this issue

incompatible pointer type sending  NSString to parameter of type  NSMutableDictionary.

It would be nice to know why you "unaccepted" my answer ...

Martin R
– Martin R

2013-10-15 10:54:13 +00:00
Commented Oct 15, 2013 at 10:54 — Martin R
– Martin R, Commented Oct 15, 2013 at 10:54

Community · Accepted Answer · 2017-05-23 12:05:17Z

1

If your method

- (NSString *)makeCallToURL:(NSString*)url withDataPost:(NSMutableDictionary*)dict;

is the same as in this question: Uploading PDF file through JSON Web Service, then the JSON encoding of the request data is done inside that method, so you should call it directly with the postDict, and not with the JSON string jsonString1:

NSMutableDictionary *responseDict = 
    (NSMutableDictionary *)[[mWebServiceHelperOBJ makeCallToURL:@"register.php" 
                                                   withDataPost:postDict] JSONValue];

(This assumes that postDict is an NSMutableDictionary.)

edited May 23, 2017 at 12:05

CommunityBot

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answered Jul 28, 2013 at 14:46

Martin R

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