If you want to use IP Messaging, Video or Client, you’ll want a server to generate access tokens for those services too. Using a pattern like this, we could also add phone number lookups to an application or generate phone calls. It is also great to now have a backend we can use with other other platforms as we can just perform direct HTTP requests to it. There’s a warm feeling about knowing that we were able to squash at least one vulnerability from our app by just following a few simple steps. Run the application again, and when the S end button is clicked we pass on the URL we want to post our data to, and upon getting a callback we either show an error message, or display a Toast on the screen saying the SMS message was sent. We use the onClick listener method on the button to to know when to make a request to our post method. Now that our project is created, open adle and add the following plugins and dependencies to it. We wrote a Getting Started with Gradle and the Spark Framework tutorial in the past in case you need help setting things up. Creating our backendīecause I’ll be using Java to create this backend, I’m gonna start by opening IntelliJ IDEA and creating a new Java project there. You will also find the entire Android application in this repository. If you just want to skip to coding your mobile app, feel free clone this repository with the backend, or just deploy it to Heroku. ngrok – You can read more about ngrok here.I will use the Twilio Java library with IntelliJ IDEA, but feel free to use any of our other libraries. A secondary choice of language to create our backend.
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