Working with two different baseUrl - AFHTTPSessionManager - objective-c

Question

I am using AFHTTPSessionManager to make api calls on the web. I have signleton object of session manager and it initiates the base url once. Occasionally, I am in a need of making api call with different baseurl. And its readonly in AFNetworking.h file.
What is the proper way of handing different baseurl here? Plese help.
+ (ApiClient *)sharedClient {
static ApiClient *_sharedClient = nil;
static dispatch_once_t oncePredicate;
dispatch_once(&oncePredicate, ^{
_sharedClient = [[self alloc] initWithBaseURL:[NSURL URLWithString:kTraktBaseURLString]];
});
return _sharedClient;
}

Answer 1

You can use the behaviour of +URLWithString:relativeToURL: method to override baseURL.
Matt mentioned it in Docs
For HTTP convenience methods, the request serializer constructs URLs from the path relative to the baseURL, using NSURL +URLWithString:relativeToURL:, when provided. If baseURL is nil, path needs to resolve to a valid NSURL object using NSURL +URLWithString:.
Below are a few examples of how baseURL and relative paths interact:
NSURL *baseURL = [NSURL URLWithString:#"http://example.com/v1/"];
[NSURL URLWithString:#"foo" relativeToURL:baseURL]; // http://example.com/v1/foo
[NSURL URLWithString:#"foo?bar=baz" relativeToURL:baseURL]; // http://example.com/v1/foo?bar=baz
[NSURL URLWithString:#"/foo" relativeToURL:baseURL]; // http://example.com/foo
[NSURL URLWithString:#"foo/" relativeToURL:baseURL]; // http://example.com/v1/foo
[NSURL URLWithString:#"/foo/" relativeToURL:baseURL]; // http://example.com/foo/
[NSURL URLWithString:#"http://example2.com/" relativeToURL:baseURL]; // http://example2.com/
So if you want to alter baseURL for single request, you can pass Absolute URL as a URLString argument to GET:parameters:success:failure: instead of URL path.
[manager GET:#"http://otherBaseURL.com/url/path" parameters:nil success:... failure:...]