Appending ?token=<auth_token> to the query params in AFNetworking for every request

gistfile1.m

- (NSMutableURLRequest *)requestWithMethod:(NSString *)method 
                                      path:(NSString *)path 
                                parameters:(NSDictionary *)parameters {
    NSString *token = [[PSCredentialRepository sharedRepository] authenticationToken];
    if ([method isEqualToString:@"POST"] || [method isEqualToString:@"PUT"]) {
        if ([path rangeOfString:@"token="].location == NSNotFound) {
            NSString *separator = @"&";
            if ([path rangeOfString:@"?"].location == NSNotFound) {
                separator = @"?";
            }
            path = [path stringByAppendingFormat:@"%@token=%@", separator, token];
        }
    } else {
        NSMutableDictionary *newParams = [NSMutableDictionary dictionaryWithDictionary:parameters];
        [newParams setObject:token forKey:@"token"];
        parameters = newParams;
    }
    
    return [super requestWithMethod:method path:path parameters:parameters];
}

Actually, even better:

- (NSMutableURLRequest *)requestWithMethod:(NSString *)method 
                                      path:(NSString *)path 
                                parameters:(NSDictionary *)parameters {
    NSString *token = [[PSCredentialRepository sharedRepository] authenticationToken];
    if ([path rangeOfString:@"?token="].location == NSNotFound) {
        path = [path stringByAppendingFormat:@"?token=%@", token];
    }
    return [super requestWithMethod:method path:path parameters:parameters];
}

As @mattt pointed out, I'd have to be careful not to ever include other query params in the path parameter. For some additional safeguard, this one will safely append using ? or &.

- (NSMutableURLRequest *)requestWithMethod:(NSString *)method 
                                      path:(NSString *)path 
                                parameters:(NSDictionary *)parameters {
    NSString *token = [[PSCredentialRepository sharedRepository] authenticationToken];
    if ([path rangeOfString:@"token="].location == NSNotFound) {
        NSString *separator = [path rangeOfString:@"?"].location == NSNotFound ? @"?" : @"&";
        path = [path stringByAppendingFormat:@"%@token=%@", separator, token];
    }
    return [super requestWithMethod:method path:path parameters:parameters];
}