sending sms from java web app using aws sns

Question

A user will create an account on my web app. The app will need to authenticate the user by sending a text message to the mobile phone number that the user provides. The text m

Answer 1

SNS topics are only nedded when you need to send a SMS message to multiple mobile numbers. If you want to send a SMS message to a single number you can use the Amazon AWS SDK.

Docs are available at http://docs.aws.amazon.com/sns/latest/dg/sms_publish-to-phone.html#sms_publish_sdk.

Example code:

public static void main(String[] args) {
    AWSCredentials awsCredentials = new BasicAWSCredentials("YOUR_Client_ID", "YOUR_Client_secret");
    final AmazonSNSClient client = new AmazonSNSClient(awsCredentials);
    client.setRegion(Region.getRegion(Regions.REGION_YOU_WANT_TO_USE));

    AmazonSNSClient snsClient = new AmazonSNSClient(awsCredentials);
    String message = "My SMS message";
    String phoneNumber = "+1XXX5550100";
    Map smsAttributes = 
            new HashMap();
    //
    sendSMSMessage(snsClient, message, phoneNumber, smsAttributes);
}

public static void sendSMSMessage(AmazonSNSClient snsClient, String message, 
    String phoneNumber, Map smsAttributes) {
    PublishResult result = snsClient.publish(new PublishRequest()
                    .withMessage(message)
                    .withPhoneNumber(phoneNumber)
                    .withMessageAttributes(smsAttributes));
    System.out.println(result); // Prints the message ID.
}

Remember to create an user on IAM console adding a permission to access the SNS Service. You need to add AmazonSNSFullAccess role.

Replace YOUR_Client_ID and YOUR_Client_secret with user credentials you have created.