To see a more detailed explanation of how the code will work, visit our SMS getting started page.

• JDK 11 or later
• Gradle https://gradle.org/install/
• Sinch account

This template repo allows you to quickly set up a Java Spring boot application to enable you to send and receive SMS via rest commands. It also spins up an ngrok tunnel than you can use to configure your application to receive SMS in the dashboard.

Open SmsJavaSampleApplication.java and fill in your values. You will find all the below values at https://dashboard.sinch.com/sms/api.

static String SERVICE_PLAN_ID = "";
static String TOKEN = "";
private static String SENDER = ""; 

and run ''' .\gradlew bootRun '''

The method that handles sending SMS is located at src/main/main/java/com/sinchdemos/smsjavasample/SmsJavaSampleApplication.java and is named sendSMS.

Make a post request with your favorite tool and don't forget to change ToPhonenumber to your own number including + and country code.

Curl

curl --location --request POST 'https://localhost:8080/sms/send' \
--header 'Content-Type: application/json' \
--data-raw '{
    "ToPhonenumber": "+15612600684",
    "Body": "Hello"
}'

PowerShell

$headers = New-Object "System.Collections.Generic.Dictionary[[String],[String]]"
$headers.Add("Content-Type", "application/json")
$body = "{
`n    `"ToPhonenumber`": `"+1Your phonenumber`",
`n    `"Body`": `"Hello`"
`n}"
$response = Invoke-RestMethod 'http://localhost:8080/sms/send' -Method 'POST' -Headers $headers -Body $body
$response | ConvertTo-Json

To be able to handle replies to your sent SMS, you need to configure a callback url in the Sinch dashboard. When you start your Java application, an ngrok tunnel is set up that temporarily exposes a website to your application. Open a browser, go to http://localhost:4040/status and copy the URL that ends in ngrok.io. Head over to https://dashboard.sinch.com/sms/api and click the serviceplan id you use for this application. Then click edit where you see Callback URL and paste the url from the ngrok status page. Be sure to click SAVE when you are done.

Note: Every time you restart your application, you will get a new ngrok domain. If you want to set up ngrok manually and keep it running, you can turn off the automatic ngrok by removing compile('io.github.kilmajster:ngrok-spring-boot-starter:0.1') from your gradle file.