Send an SMS

In this code snippet you will see how to send an SMS using the Messages API.

For a step-by-step guide to this topic, you can read our tutorial Sending SMS messages with the Messages API.

Note: To include a new line in the message, see the documentation for Concatenation and Encoding

Delivery receipts

The webhook used for the delivery receipt will depend on the type of authentication used:

Authentication type used	Webhook used for delivery receipt
Basic Auth	account-level webhook is used for delivery receipt.
JWT Auth	application-level webhook is used for delivery receipt / status.

Reception of delivery receipts depends on availability of network support.

Example

Find the description for all variables used in each code snippet below:

Key	Description
`VONAGE_APPLICATION_ID`	The Vonage Application ID.
`VONAGE_PRIVATE_KEY`	Private key for the Vonage Application.
`MESSAGES_TO_NUMBER`	The number you are sending the to in E.164 format. For example `447700900000`.
`SMS_SENDER_ID`	The alphanumeric string that represents the name or number of the organization sending the message.

NOTE: Don't use a leading + or 00 when entering a phone number, start with the country code, for example 447700900000.

Prerequisites

If you do not have an application you can create one. Make sure you also configure your webhooks.

Write the code

Add the following to send-sms.sh:

curl -X POST https://api.nexmo.com/v1/messages \
  -H "Authorization: Bearer "$JWT\
  -H 'Content-Type: application/json' \
  -H 'Accept: application/json' \
  -d $'{
    "to": "'${MESSAGES_TO_NUMBER}'",
    "from": "'${SMS_SENDER_ID}'",
    "channel": "sms",
    "message_type": "text",
    "text": "This is an SMS sent using the Vonage Messages API."
  }'

View full source

Run your code

Save this file to your machine and run it:

bash send-sms.sh

Prerequisites

If you do not have an application you can create one. Make sure you also configure your webhooks.

npm install @vonage/server-sdk @vonage/messages

Create a file named send-sms.js and add the following code:

const { Vonage } = require('@vonage/server-sdk');
const { Channels } = require('@vonage/messages');

/**
 * It is best to send messages using JWT instead of basic auth. If you leave out
 * apiKey and apiSecret, the messages SDK will send requests using JWT tokens
 *
 * @link https://developer.vonage.com/en/messages/technical-details#authentication
 */
const vonage = new Vonage(
  {
    applicationId: VONAGE_APPLICATION_ID,
    privateKey: VONAGE_PRIVATE_KEY,
  },
  {
    ...(MESSAGES_API_URL ? {apiHost: MESSAGES_API_URL} : {}),
  },
);

View full source

Write the code

Add the following to send-sms.js:

vonage.messages.send({
  messageType: 'sms',
  channel: Channels.SMS,
  text: 'This is an SMS text message sent using the Messages API',
  to: MESSAGES_TO_NUMBER,
  from: SMS_SENDER_ID,
})
  .then(({ messageUUID }) => console.log(messageUUID))
  .catch((error) => console.error(error));

View full source

Run your code

Save this file to your machine and run it:

node send-sms.js

Prerequisites

If you do not have an application you can create one. Make sure you also configure your webhooks.

Add the following to build.gradle:

implementation 'com.vonage:server-sdk-kotlin:2.1.1'

Create a file named SendSmsText and add the following code to the main method:

val client = Vonage {
    applicationId(VONAGE_APPLICATION_ID)
    privateKeyPath(VONAGE_PRIVATE_KEY_PATH)
}

View full source

Write the code

Add the following to the main method of the SendSmsText file:

val messageId = client.messages.send(
    smsText {
        to(MESSAGES_TO_NUMBER)
        from(SMS_SENDER_ID)
        text("This is an SMS text message sent using the Messages API")
    }
)

View full source

Run your code

We can use the application plugin for Gradle to simplify the running of our application. Update your build.gradle with the following:

apply plugin: 'application'
mainClassName = project.hasProperty('main') ? project.getProperty('main') : ''

Run the following gradle command to execute your application, replacing com.vonage.quickstart.kt.messages.sms with the package containing SendSmsText:

gradle run -Pmain=com.vonage.quickstart.kt.messages.sms.SendSmsText

Prerequisites

If you do not have an application you can create one. Make sure you also configure your webhooks.

Add the following to build.gradle:

implementation 'com.vonage:server-sdk:9.3.1'

Create a file named SendSmsText and add the following code to the main method:

VonageClient client = VonageClient.builder()
		.applicationId(VONAGE_APPLICATION_ID)
		.privateKeyPath(VONAGE_PRIVATE_KEY_PATH)
		.build();

View full source

Write the code

Add the following to the main method of the SendSmsText file:

var response = client.getMessagesClient().sendMessage(
		SmsTextRequest.builder()
			.from(SMS_SENDER_ID).to(MESSAGES_TO_NUMBER)
			.text("This is an SMS text message sent using the Messages API")
			.build()
);
System.out.println("Message sent successfully. ID: " + response.getMessageUuid());

View full source

Run your code

We can use the application plugin for Gradle to simplify the running of our application. Update your build.gradle with the following:

apply plugin: 'application'
mainClassName = project.hasProperty('main') ? project.getProperty('main') : ''

Run the following gradle command to execute your application, replacing com.vonage.quickstart.messages.sms with the package containing SendSmsText:

gradle run -Pmain=com.vonage.quickstart.messages.sms.SendSmsText

Prerequisites

If you do not have an application you can create one. Make sure you also configure your webhooks.

Install-Package Vonage

Write the code

Add the following to SendSms.cs:

var credentials = Credentials.FromAppIdAndPrivateKeyPath(VONAGE_APP_ID, VONAGE_PRIVATE_KEY_PATH);

var vonageClient = new VonageClient(credentials);

var request = new Vonage.Messages.Sms.SmsRequest
{
    To = MESSAGES_TO_NUMBER,
    From = SMS_SENDER_ID,
    Text = "An SMS sent using the Vonage Messages API"
};

var response = await vonageClient.MessagesClient.SendAsync(request);

View full source

Prerequisites

If you do not have an application you can create one. Make sure you also configure your webhooks.

composer require vonage/client

Create a file named send-sms.php and add the following code:

$keypair = new \Vonage\Client\Credentials\Keypair(
    file_get_contents(VONAGE_APPLICATION_PRIVATE_KEY_PATH),
    VONAGE_APPLICATION_ID
);

$client = new \Vonage\Client($keypair);

View full source

Write the code

Add the following to send-sms.php:

$sms = new \Vonage\Messages\Channel\SMS\SMSText(
    TO_NUMBER,
    FROM_NUMBER,
    'This is an SMS sent using the Vonage PHP SDK'
);

View full source

Run your code

Save this file to your machine and run it:

php send-sms.php

Prerequisites

If you do not have an application you can create one. Make sure you also configure your webhooks.

pip install vonage python-dotenv

Write the code

Add the following to send-sms.py:

from vonage import Auth, Vonage
from vonage_messages import Sms

client = Vonage(
    Auth(
        application_id=VONAGE_APPLICATION_ID,
        private_key=VONAGE_PRIVATE_KEY,
    )
)

response = client.messages.send(
    Sms(
        to=MESSAGES_TO_NUMBER,
        from_=SMS_SENDER_ID,
        text='This is an SMS sent using the Vonage Messages API.',
    )
)
print(response)

View full source

Run your code

Save this file to your machine and run it:

python messages/sms/send-sms.py

Prerequisites

If you do not have an application you can create one. Make sure you also configure your webhooks.

gem install vonage

Create a file named send-sms.rb and add the following code:

client = Vonage::Client.new(
  application_id: VONAGE_APPLICATION_ID,
  private_key: VONAGE_PRIVATE_KEY
)

View full source

Write the code

Add the following to send-sms.rb:

message = client.messaging.sms(
  message: "A SMS message sent using the Vonage Messages API"
)

client.messaging.send(
  from: SMS_SENDER_ID,
  to: MESSAGES_TO_NUMBER,
  **message
)

View full source

Run your code

Save this file to your machine and run it:

ruby send-sms.rb

Try it out

When you run the code a message is sent to the destination number.