A simple block for sending SMS messages through Nexmo

gistfile1.txt

//
//  Nexmo.m
//
//  Created by Tewodros Wondimu on 3/7/15.
//  Contact: tewodroswondimu@gmail.com
//  Copyright (c) 2015 Tewodros Wondimu. All rights reserved.
//

#import "Nexmo.h"

// Please replace the value below with your own account details
#define apiKey @"Your-Nexmo-API-Key"
#define apiSecret @"Your-Nexmo-API-Secret"
#define yourNumber @"Your-Nexmo-Phone-Number"

@implementation Nexmo

// A completion block that helps you send your messages to a specific number
+ (void)sendSMSToUserWithPhoneNumber:(NSString *)phoneNumber andMessage:(NSString *)message ithCompletionBlock:(void(^)(NSArray *messagesArray))complete
{
    // Modify message to strip out spaces
    NSString *modifiedMessage = [message stringByReplacingOccurrencesOfString:@" " withString:@"+"];
    
    // URL to send the message to
    NSString *urlString = [NSString stringWithFormat:@"https://rest.nexmo.com/sms/json?api_key=%@&api_secret=%@&from=@%&to=%@&text=%@", apiKey, apiSecret, yourNumber, phoneNumber, modifiedMessage];
    NSURL *url = [NSURL URLWithString:urlString];

    // Setup a URL Request
    NSMutableURLRequest *request = [[NSMutableURLRequest alloc] init];
    [request setURL:url];;

    // Send a request
    [NSURLConnection sendAsynchronousRequest:request queue:[NSOperationQueue mainQueue] completionHandler:^(NSURLResponse *response, NSData *data, NSError *connectionError) {
        if (!connectionError) {
            NSError *error = nil;
            NSDictionary *response = [NSJSONSerialization JSONObjectWithData:data options:NSASCIIStringEncoding error:&error];
            if (!error) {
                // A response from Nexmo with details about the message you just sent
                NSArray *messagesArray = response[@"messages"];
                complete(messagesArray);
            }
            else
            {
                NSLog(@"Error retrieving results from Nexmo");
            }
        }
    }];
}

@end