rootcastleco/rei-skills/azure-communication-sms-java

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Send SMS messages with Azure Communication Services SMS Java SDK. Use when implementing SMS notifications, alerts, OTP delivery, bulk messaging, or delivery reports.

Install

npx vskill@latest install rootcastleco/rei-skills/azure-communication-sms-java

SKILL.md

Azure Communication SMS (Java)

Send SMS messages to single or multiple recipients with delivery reporting.

Installation

xml
<dependency>
<groupId>com.azure</groupId>
<artifactId>azure-communication-sms</artifactId>
<version>1.2.0</version>
</dependency>

Client Creation

java
import com.azure.communication.sms.SmsClient;
import com.azure.communication.sms.SmsClientBuilder;
import com.azure.identity.DefaultAzureCredentialBuilder;
// With DefaultAzureCredential (recommended)
SmsClient smsClient = new SmsClientBuilder()
.endpoint("https://<resource>.communication.azure.com")
.credential(new DefaultAzureCredentialBuilder().build())
.buildClient();
// With connection string
SmsClient smsClient = new SmsClientBuilder()
.connectionString("<connection-string>")
.buildClient();
// With AzureKeyCredential
import com.azure.core.credential.AzureKeyCredential;
SmsClient smsClient = new SmsClientBuilder()
.endpoint("https://<resource>.communication.azure.com")
.credential(new AzureKeyCredential("<access-key>"))
.buildClient();
// Async client
SmsAsyncClient smsAsyncClient = new SmsClientBuilder()
.connectionString("<connection-string>")
.buildAsyncClient();

Send SMS to Single Recipient

java
import com.azure.communication.sms.models.SmsSendResult;
// Simple send
SmsSendResult result = smsClient.send(
"+14255550100", // From (your ACS phone number)
"+14255551234", // To
"Your verification code is 123456");
System.out.println("Message ID: " + result.getMessageId());
System.out.println("To: " + result.getTo());
System.out.println("Success: " + result.isSuccessful());
if (!result.isSuccessful()) {
System.out.println("Error: " + result.getErrorMessage());
System.out.println("Status: " + result.getHttpStatusCode());
}

Send SMS to Multiple Recipients

java
import com.azure.communication.sms.models.SmsSendOptions;
import java.util.Arrays;
import java.util.List;
List<String> recipients = Arrays.asList(
"+14255551111",
"+14255552222",
"+14255553333"
);
// With options
SmsSendOptions options = new SmsSendOptions()
.setDeliveryReportEnabled(true)
.setTag("marketing-campaign-001");
Iterable<SmsSendResult> results = smsClient.sendWithResponse(
"+14255550100", // From
recipients, // To list
"Flash sale! 50% off today only.",
options,
Context.NONE
).getValue();
for (SmsSendResult result : results) {
if (result.isSuccessful()) {
System.out.println("Sent to " + result.getTo() + ": " + result.getMessageId());
} else {
System.out.println("Failed to " + result.getTo() + ": " + result.getErrorMessage());
}
}

Send Options

java
SmsSendOptions options = new SmsSendOptions();
// Enable delivery reports (sent via Event Grid)
options.setDeliveryReportEnabled(true);
// Add custom tag for tracking
options.setTag("order-confirmation-12345");

Response Handling

java
import com.azure.core.http.rest.Response;
Response<Iterable<SmsSendResult>> response = smsClient.sendWithResponse(
"+14255550100",
Arrays.asList("+14255551234"),
"Hello!",
new SmsSendOptions().setDeliveryReportEnabled(true),
Context.NONE
);
// Check HTTP response
System.out.println("Status code: " + response.getStatusCode());
System.out.println("Headers: " + response.getHeaders());
// Process results
for (SmsSendResult result : response.getValue()) {
System.out.println("Message ID: " + result.getMessageId());
System.out.println("Successful: " + result.isSuccessful());
if (!result.isSuccessful()) {
System.out.println("HTTP Status: " + result.getHttpStatusCode());
System.out.println("Error: " + result.getErrorMessage());
}
}

Async Operations

java
import reactor.core.publisher.Mono;
SmsAsyncClient asyncClient = new SmsClientBuilder()
.connectionString("<connection-string>")
.buildAsyncClient();
// Send single message
asyncClient.send("+14255550100", "+14255551234", "Async message!")
.subscribe(
result -> System.out.println("Sent: " + result.getMessageId()),
error -> System.out.println("Error: " + error.getMessage())
);
// Send to multiple with options
SmsSendOptions options = new SmsSendOptions()
.setDeliveryReportEnabled(true);
asyncClient.sendWithResponse(
"+14255550100",
Arrays.asList("+14255551111", "+14255552222"),
"Bulk async message",
options)
.subscribe(response -> {
for (SmsSendResult result : response.getValue()) {
System.out.println("Result: " + result.getTo() + " - " + result.isSuccessful());
}
});

Error Handling

java
import com.azure.core.exception.HttpResponseException;
try {
SmsSendResult result = smsClient.send(
"+14255550100",
"+14255551234",
"Test message"
);
// Individual message errors don't throw exceptions
if (!result.isSuccessful()) {
handleMessageError(result);
}
} catch (HttpResponseException e) {
// Request-level failures (auth, network, etc.)
System.out.println("Request failed: " + e.getMessage());
System.out.println("Status: " + e.getResponse().getStatusCode());
} catch (RuntimeException e) {
System.out.println("Unexpected error: " + e.getMessage());
}
private void handleMessageError(SmsSendResult result) {
int status = result.getHttpStatusCode();
String error = result.getErrorMessage();
if (status == 400) {
System.out.println("Invalid phone number: " + result.getTo());
} else if (status == 429) {
System.out.println("Rate limited - retry later");
} else {
System.out.println("Error " + status + ": " + error);
}
}

Delivery Reports

Delivery reports are sent via Azure Event Grid. Configure an Event Grid subscription for your ACS resource.

java
// Event Grid webhook handler (in your endpoint)
public void handleDeliveryReport(String eventJson) {
// Parse Event Grid event
// Event type: Microsoft.Communication.SMSDeliveryReportReceived
// Event data contains:
// - messageId: correlates to SmsSendResult.getMessageId()
// - from: sender number
// - to: recipient number
// - deliveryStatus: "Delivered", "Failed", etc.
// - deliveryStatusDetails: detailed status
// - receivedTimestamp: when status was received
// - tag: your custom tag from SmsSendOptions
}

SmsSendResult Properties

PropertyTypeDescription
getMessageId()StringUnique message identifier
getTo()StringRecipient phone number
isSuccessful()booleanWhether send succeeded
getHttpStatusCode()intHTTP status for this recipient
getErrorMessage()StringError details if failed
getRepeatabilityResult()RepeatabilityResultIdempotency result

Environment Variables

bash
AZURE_COMMUNICATION_ENDPOINT=https://<resource>.communication.azure.com
AZURE_COMMUNICATION_CONNECTION_STRING=endpoint=https://...;accesskey=...
SMS_FROM_NUMBER=+14255550100

Best Practices

  1. Phone Number Format - Use E.164 format: +[country code][number]
  2. Delivery Reports - Enable for critical messages (OTP, alerts)
  3. Tagging - Use tags to correlate messages with business context
  4. Error Handling - Check isSuccessful() for each recipient individually
  5. Rate Limiting - Implement retry with backoff for 429 responses
  6. Bulk Sending - Use batch send for multiple recipients (more efficient)

Trigger Phrases

  • "send SMS Java", "text message Java"
  • "SMS notification", "OTP SMS", "bulk SMS"
  • "delivery report SMS", "Azure Communication Services SMS"

When to Use

This skill is applicable to execute the workflow or actions described in the overview.


🏰 Rei Skills — Curated by Rootcastle Engineering & Innovation | Batuhan Ayrıbaş
Engineering Beyond Boundaries | admin@rootcastle.com

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Source

Popularity

Repository stars
6
Repository forks
2
7-day trend score
15

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