Open Source Ecosystems

OTP Verification System Using Africa's Talking API (Sandbox)

This project is a basic OTP (One-Time Password) sending and verification system, built with PHP, Bootstrap, and Composer. It utilizes the Africa's Talking API (Sandbox environment) to generate and send OTPs via SMS to users, ensuring secure authentication. The system includes both sending the OTP and verifying it for user login or account validation.

Features:

OTP generation and sending via SMS using Africa's Talking API (Sandbox)
OTP verification for secure user authentication
Simple user interface built with Bootstrap
PHP backend for managing OTP generation and verification
Composer for managing dependencies

Installation:

Clone the repository:

  git clone https://github.com/Maithy-a/OTP-Request-VerificationSys.git
  cd OTP-Africa-s-talking

Install dependencies with Composer:

composer require africastalking/africastalking
composer require vlucas/phpdotenv

Set up your Africa's Talking Sandbox API credentials in the .env file:

AFRICASTALKING_USERNAME=sandbox
AFRICASTALKING_API_KEY=your_api_key_here

Create a .env file at the root of the project and add the following environment variables:
```
AFRICASTALKING_USERNAME=sandbox
AFRICASTALKING_API_KEY=your_api_key_here
```
Obtain your OTP code via Africa's Talking Simulator: Since this project uses Africa's Talking Sandbox, the OTP will not be sent to your physical phone. Instead, follow these steps to use the simulator to retrieve the OTP:
- Go to the Africa's Talking Dashboard.
- Click on the "Sandbox" section.
- You will be redirected to your Sandbox Dashboard. From there, click on "Launch Simulator" on the left sidebar.
- In the Simulator, you'll get a virtual phone interface. Enter a phone number you wish to use for receiving the OTP (e.g., a fake number starting with +254 for Kenyan numbers) and click "Connect."
- Once connected, you'll see a virtual phone screen with options for SMS, Calls, and Payments.
- Click on the "SMS" app on the virtual phone screen to open the SMS inbox.
- Now, when you send the OTP using your application, it will appear in the SMS inbox of the simulator.
Run the project on a local PHP server:
```
php -S localhost:8000
```