SendFormDataByUsingAFNetworking

SendFormDataByUsingAFNetworking

- (void)sendEmailWithReferral:(Referral *)referral completionBlock:(NetworkCompletionBlock)completion {
    [[NetworkHelper sharedInstance] updateEmailAuthorizationForRequestHeader];
    
    NSString *appName=[[[NSBundle mainBundle] infoDictionary] objectForKey:(id)kCFBundleNameKey];
    NSString *message = [NSString stringWithFormat:@"Hi %@\nI found this interesting. You can join %@ and get discount at http://quickref.io/app/%@?code=%@", referral.name, appName, kGroupID, referral.code];
    
    [[NetworkHelper sharedInstance] POST:@"https://api.mailgun.net/v3/quickref.io/messages" parameters:nil constructingBodyWithBlock:^(id<AFMultipartFormData> formData) {
        [formData appendPartWithFormData:[@"verification@quickref.io" dataUsingEncoding:NSUTF8StringEncoding] name:@"from"];
        [formData appendPartWithFormData:[referral.consentEmail dataUsingEncoding:NSUTF8StringEncoding] name:@"to"];
        [formData appendPartWithFormData:[message dataUsingEncoding:NSUTF8StringEncoding] name:@"text"];
        [formData appendPartWithFormData:[[NSString stringWithFormat:@"Invitation to %@", appName] dataUsingEncoding:NSUTF8StringEncoding] name:@"subject"];
    } success:^(NSURLSessionDataTask *task, id responseObject) {
        if (completion) {
            completion(responseObject, nil);
        }
    } failure:^(NSURLSessionDataTask *task, NSError *error) {
        if (completion) {
            completion(nil, nil);
        }
    }];
}