(Objective-C) Send SMS Text Message to Phone Number

Uses Amazon SNS to send an SMS text message to a phone number.

See SNS Publish for more information.

For more information, see https://docs.aws.amazon.com/sns/latest/dg/sms_publish-to-phone.html

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#import <CkoRest.h>
#import <CkoAuthAws.h>
#import <NSString.h>
#import <CkoXml.h>

// This example requires the Chilkat API to have been previously unlocked.
// See Global Unlock Sample for sample code.

CkoRest *rest = [[CkoRest alloc] init];

// Connect to the Amazon AWS REST server.
// such as https://sns.us-west-2.amazonaws.com/
BOOL bTls = YES;
int port = 443;
BOOL bAutoReconnect = YES;
BOOL success = [rest Connect: @"sns.us-west-2.amazonaws.com" port: [NSNumber numberWithInt: port] tls: bTls autoReconnect: bAutoReconnect];

// Provide AWS credentials for the REST call.
CkoAuthAws *authAws = [[CkoAuthAws alloc] init];
authAws.AccessKey = @"AWS_ACCESS_KEY";
authAws.SecretKey = @"AWS_SECRET_KEY";
// the region should match our URL above..
authAws.Region = @"us-west-2";
authAws.ServiceName = @"sns";

[rest SetAuthAws: authAws];

[rest AddQueryParam: @"Action" value: @"Publish"];
// ----------------------------------------------------
// Please use your own phone number here for testing...
// ----------------------------------------------------
[rest AddQueryParam: @"PhoneNumber" value: @"+15551239999"];
[rest AddQueryParam: @"Message" value: @"This is a test message from Amazon SNS"];

NSString *responseXml = [rest FullRequestNoBody: @"GET" uriPath: @"/"];
if (rest.LastMethodSuccess != YES) {
    NSLog(@"%@",rest.LastErrorText);
    return;
}

// A successful response will have a status code equal to 200.
if ([rest.ResponseStatusCode intValue] != 200) {
    NSLog(@"%@%d",@"response status code = ",[rest.ResponseStatusCode intValue]);
    NSLog(@"%@%@",@"response status text = ",rest.ResponseStatusText);
    NSLog(@"%@%@",@"response header: ",rest.ResponseHeader);
    NSLog(@"%@%@",@"response body: ",responseXml);
    return;
}

// Examine the successful XML response.
CkoXml *xml = [[CkoXml alloc] init];
[xml LoadXml: responseXml];
NSLog(@"%@",[xml GetXml]);

// To get the MessageId
NSLog(@"%@%@",@"MessageId: ",[xml ChilkatPath: @"PublishResult|MessageId|*"]);

// A sample successful response:
// <?xml version="1.0" encoding="utf-8"?>
// <PublishResponse xmlns="http://sns.amazonaws.com/doc/2010-03-31/">
//     <PublishResult>
//         <MessageId>5ffca506-6ff6-502c-bca3-f098971bcb9c</MessageId>
//     </PublishResult>
//     <ResponseMetadata>
//         <RequestId>6c815022-050e-5930-a7b4-05bcfde35280</RequestId>
//     </ResponseMetadata>
// </PublishResponse>