Has anyone built an integration with any SMS Receivers?

Question

I want to be able to send a text message to some number and then (upon receiving the text) basically just send a post request off to a different service after receiving the text. Does anyone know of a service I could use to set this up? Would like for it to be as fast as possible

Answer 1

Here's a summary of the steps to setup a sample app:

1. Navigate to Amazon SNS Service → Topics
2. Enter Name and create a new Topic
3. For the newly created topic, create a subscription where the Protocol is AWS Lambda (see image1 below)
4. Navigate to Amazon Pinpoint Service, create new Pinpoint application
5. Enable SMS & voice feature for this Pinpoint application
6. Get a new Long Code (long code price is $1/month)
7. For the long code, Enable two-way SMS , select the Choose an existing SNS topic option and select the SNS topic created in Step 2 above (see image2 below)
8. Finally, now you can send a message to that phone number from your phone and it will trigger your lambda function. In your lambda function, you can send a POST request to a different service or do whatever else. You can also respond back to the user's message - see example below.

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Here's an example of how to send a message using Amazon Pinpoint in Java:

public void sendSMS(String pinpointPhoneNumber, String userPhoneNumber, String messageContent) {
    // define who the message is going to and via what platform
    Map<String, AddressConfiguration> addressMap = new HashMap<>();
    addressMap.put(userPhoneNumber, new AddressConfiguration().withChannelType(ChannelType.SMS));

    SMSMessage smsMessage = new SMSMessage();
    smsMessage.setOriginationNumber(pinpointPhoneNumber);
    smsMessage.setMessageType(MessageType.TRANSACTIONAL);
    smsMessage.setBody(messageContent);

    // add sms message to the direct message config
    // this can have many other types of messages
    DirectMessageConfiguration directMessageConfiguration = new DirectMessageConfiguration()
        .withSMSMessage(smsMessage);

    // put the phone numbers and all messages in here
    MessageRequest messageRequest = new MessageRequest()
        .withAddresses(addressMap)
        .withMessageConfiguration(directMessageConfiguration);

    // create send request
    SendMessagesRequest sendMessagesRequest = new SendMessagesRequest()
        .withApplicationId("put-pinpoint-app-id-here")
        .withMessageRequest(messageRequest);

    // send the message
    AmazonPinpoint pinpointClient = AmazonPinpointClientBuilder.standard().build();
    SendMessagesResult sendMessagesResult = pinpointClient.sendMessages(sendMessagesRequest);
    MessageResponse messageResponse = sendMessagesResult.getMessageResponse();
}

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