Question

so I want to have a class that does all the http requests so I don’t have to copy the same code over and over. How can I make an http request to the http class and receive the response in the class I made the request from?

Answer 1

You will want to set the class (class A) as the delegate of the class that is actually triggering the http requests (class B). You create an instance of the method of class B, call your method, and have your method send a notification and/or response back to class A.

Something along the lines of:
Class A:

if(bwebservice == nil){
    bwebservice = [[WebServiceClass alloc] initWithDelegate:self];
}
[bwebservice start];

.
.
.

#pragma mark - Web Service Methods
- (void)webService:(WebServiceClass *)webService didFailWithError:(NSError *)error{
    NSLog(@"ERROR: %@", error);

}
- (void)webServiceDidComplete:(JSONService *)webService{
}

Class B:

// ...REQUEST SEND DATA...
.
.
.
- (void)notifyDelegateOfError:(NSError *)error{
    [delegate webService:self didFailWithError: error];
}


- (void)notifyDelegateOfCompletion
{
    if ([delegate respondsToSelector:@selector(webServiceDidComplete:)]) {
        [delegate webServiceDidComplete:self];
    }
}