Error Domain=NSCocoaErrorDomain Code=3840 "The operation couldn’t be completed using AFNetworking

Question

I am using AFNetworking library to post data on server using POST method.

Following is my code

- (void) callLoginAPI:(NSDictionary *)dictProfile{
            


        

Answer 1

The problem comes from response parsing. You are trying to de-serialize a JSON reponse (which MUST be contained in either a NSArray or NSDictionary) however your response is none of the above (Most likely a simple string).

Also, try to set the "allow fragments" to the response serializer.

AFJSONResponseSerializer *responseSerializer = [AFJSONResponseSerializer serializerWithReadingOptions:NSJSONReadingAllowFragments];

Answer 2

May be you need authentication to access JSON response. Set authentication like that:

[manager.requestSerializer setAuthorizationHeaderFieldWithUsername:@"XYZ" password:@"xyzzzz"];

Try this:

AFJSONResponseSerializer *responseSerializer = [AFJSONResponseSerializer serializerWithReadingOptions:NSJSONReadingAllowFragments];
[self setResponseSerializer:responseSerializer];

instead of:

AFHTTPRequestOperationManager *manager = [AFHTTPRequestOperationManager manager];
manager.requestSerializer = [AFJSONRequestSerializer serializer];

Answer 3

AFHTTPSessionManager *manager = [[AFHTTPSessionManager alloc]initWithSessionConfiguration:[NSURLSessionConfiguration defaultSessionConfiguration]];

//Request Serializer
manager.requestSerializer = [AFJSONRequestSerializer serializer];

//Response Serializer
AFJSONResponseSerializer *responseSerializer = [AFJSONResponseSerializer serializerWithReadingOptions:NSJSONReadingAllowFragments];
manager.responseSerializer = responseSerializer;