Write your First mesibo Enabled Application

Estimated reading time: 4 minutes

Are you excited to see real-time messaging in action? We are too. In this first tutorial, we will create a simple real-time app using Mesibo API for various platforms including Android, iOS, Web (JavaScript), C++ (Linux, Mac, Raspberry Pi), and Python. We will cover the following:

  • Basic Mesibo Settings common across all the platforms (on this page)
  • Anatomy of a Mesibo App - essential elements of a Mesibo App and design pattern which are common across all the platforms.
  • Platform-specific tutorials - Android, iOS, Web (JavaScript), C++ (Linux, Mac, Raspberry Pi), and Python.
  • Other topics


Ensure that you have gone through following prerequisites before you read further.

You are not required to go through Real-time APIs for now.


Mesibo APIs are very simple to use. You only need to perform following steps to use mesibo APIs.

  1. Create a mesibo application that will host all your users and groups. Once you create a mesibo application, you will get an App Token that you can use it to create users and users tokens. Note that, App Token is secret and you should never expose it to your users. Hence, you MUST not use it in client-side APIs (Android, iOS, JS, etc).

  2. Create users using App Token that you have generated in step 1.

  3. Create a user-token (access token) for each user that you need to use in client-side APIs.

  4. That’s it! Start messaging and calling using mesibo APIs.

Let’s say you are creating a new app BingoMessage for Android, iOS, and web. Login to Mesibo console and create a new application BingoMessage.


Once your application is created, note down the App token. The App Token looks like the following:


We will need this app token to create users and groups for this Application.

App Token is secret and you should never expose it to your users. Hence, you MUST not use it in client-side APIs (Android, iOS, JS, etc)

Create Users (Endpoints)

Once you have created your application, it’s time to add users and groups. Typically, you will add users and groups dynamically on a need basis. However, for this sample app, you can create a few users and groups manually so that you can test messaging between them.

Note that all your users and groups are local and confined to an Application. So there is no conflict when the same user is created by another application.

Now we will create two users by using Mesibo backend API and the app token obtained in the previous step. The user is a string. It is not neccessary to use phone number, you can use whatever suits your app, as long as it’s a unquie across your Application.

  • 18005550001
  • 18005550002

Note that, you also need to pass the Android app id (bundle id in iOS), for example, com.mesibo.demoapp while creating users. This is a security feature that restricts your users from using the user access token on intended platforms only.

User Creation Request



  • token = Application Token
  • appid = Android or iOS app id (for example, com.mesibo.xxx). In case of C++, Python and Javascript, you can pass whatever appid you prefer. However, the same app id you will need to pass in setAppName API call. Note that, for security reasons, the token generated for a particular appid will only be usable on app matching that appid.
  • addr = end point address, for example, a user phone number.

You can find more about backend API in the reference section. The above API returns JSON response like this,



The token returned in the above API JSON response is the access token, that will be used by real-time API to connect to Mesibo real-time server (using setAccessToken API).

You can now create more users in a similar fashion so that you can test messaging between them. You can also send messages to a particular user using the console in ‘Users’ section.

You can also create users from the console by clicking on ‘New User’ button from the Application settings page.

We are now all set to create our first mobile app which can send and receive real-time messages.

In the next section, we will learn about basic components of a Mesibo application.

On to Part 2 >>

mesibo, android, ios