/*
   Copyright Amazon.com, Inc. or its affiliates. All Rights Reserved.
   This file is licensed under the Apache License, Version 2.0 (the "License").
   You may not use this file except in compliance with the License. A copy of
   the License is located at
    http://aws.amazon.com/apache2.0/
   This file is distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR
   CONDITIONS OF ANY KIND, either express or implied. See the License for the
   specific language governing permissions and limitations under the License.
*/


package com.example.handlingformsubmission;

import software.amazon.awssdk.auth.credentials.EnvironmentVariableCredentialsProvider;
import software.amazon.awssdk.regions.Region;
import software.amazon.awssdk.services.sns.SnsClient;
import software.amazon.awssdk.services.sns.model.PublishRequest;
import software.amazon.awssdk.services.sns.model.PublishResponse;
import software.amazon.awssdk.services.sns.model.SnsException;
import org.springframework.stereotype.Component;

@Component("PublishTextSMS")
public class PublishTextSMS {

    public void sendMessage(String id) {

        Region region = Region.US_EAST_1;
        SnsClient snsClient = SnsClient.builder()
                .region(region)
                .credentialsProvider(EnvironmentVariableCredentialsProvider.create())
                .build();
        String message = "A new item with ID value "+ id +" was added to the DynamoDB table";
        String phoneNumber="18195765654"; //Replace with a mobile phone number

        try {
            PublishRequest request = PublishRequest.builder()
                    .message(message)
                    .phoneNumber(phoneNumber)
                    .build();

            PublishResponse result = snsClient.publish(request);

        } catch (SnsException e) {

            System.err.println(e.awsErrorDetails().errorMessage());
            System.exit(1);
        }
    }
}

/*
   Copyright Amazon.com, Inc. or its affiliates. All Rights Reserved.
   This file is licensed under the Apache License, Version 2.0 (the "License").
   You may not use this file except in compliance with the License. A copy of
   the License is located at
    http://aws.amazon.com/apache2.0/
   This file is distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR
   CONDITIONS OF ANY KIND, either express or implied. See the License for the
   specific language governing permissions and limitations under the License.
*/


package com.example.handlingformsubmission;

import software.amazon.awssdk.auth.credentials.EnvironmentVariableCredentialsProvider;
import software.amazon.awssdk.regions.Region;
import software.amazon.awssdk.services.sns.SnsClient;
import software.amazon.awssdk.services.sns.model.PublishRequest;
import software.amazon.awssdk.services.sns.model.PublishResponse;
import software.amazon.awssdk.services.sns.model.SnsException;
import org.springframework.stereotype.Component;

@Component("PublishTextSMS")
public class PublishTextSMS {

    public void sendMessage(String id) {

        Region region = Region.US_EAST_1;
        SnsClient snsClient = SnsClient.builder()
                .region(region)
                .credentialsProvider(EnvironmentVariableCredentialsProvider.create())
                .build();
        String message = "A new item with ID value "+ id +" was added to the DynamoDB table";
        String phoneNumber="ENTER MOBILE NUMBER"; //Replace with a mobile phone number

        try {
            PublishRequest request = PublishRequest.builder()
                    .message(message)
                    .phoneNumber(phoneNumber)
                    .build();

            PublishResponse result = snsClient.publish(request);

        } catch (SnsException e) {

            System.err.println(e.awsErrorDetails().errorMessage());
            System.exit(1);
        }
    }
}

Update PublishTextSMS.java