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Hubtel USSD

Based on Hubtel's USSD API

About

This package helps you to build maintainable and scalable USSD applications by breaking down your "long switch" statement USSD application into modules

Getting Started

Check out this link to know how you can acquire a USSD code from Hubtel.

Installing

Install the package from composer

composer require norris1z/hubtel-ussd

Usage

Setup a route to respond to all Hubtel's requests.

Note that Hubtel sends no csrf tokens hence disable csrfprotection for that route.

For Laravel, add the route to the except array in the VerifyCsrfToken middleware.

Hubtel\USSD\Request::class is a class which represents the request from Hubtel. It has methods for all the parameters listed on Hubtel's Documentation Page.

View Source Request.php

Hubtel\USSD\Response::class is a class which represents the response sent to Hubtel. It has methods for all the parameters listed on Hubtel's Documentation Page.

View Source Response.php

RequestTypes::class has two properties, RESPONSE and RELEASE for indicating the type of response in a sequence.

    $response = Response::createInstance('Hello Hubtel, i want a response',RequestTypes::RESPONSE);
    $response = Response::createInstance('Hello Hubtel, end the sequence',RequestTypes::RELEASE);

USSD::class is a class with one static method process which takes two parameters a Request (an instance of Hubtel\USSD\Reqeust) and an array of sequence (any class that implements the Hubtel\USSD\SequenceInterface);

     USSD::process(/** An instance of Hubtel\USSD\Request **/,[
        new Sequence1(),
        new Sequence2(),
        new Sequence3()
    ])->toArray();

All seqeunces must have implement the SequenceInterface and hence have a handle method and must return an instance of Hubtel\USSD\Response (Response). The USSD::process method automagically injects a Request parameter into the handle method of each sequence. This Request is an instace of Hubtel\USSD\Request which grants access to all properties and methods in the request.

    //Sequence1.php
    use Hubtel\USSD\Request;
    use Hubtel\USSD\RequestTypes;
    use Hubtel\USSD\Response;
    use Hubtel\USSD\SequenceInterface;

    class Sequence1 implements SequenceInterface
    {

        public function handle(Request $request)
        {
            return Response::createInstance('Welcome to Freebie Service.\n1. Free Food\n2. Free Drink\n3. Free Airtime',RequestTypes::RESPONSE);
        }
    }

Visit Hubtel's USSD Api documentation page for the list of methods on the request and response classes

Examples

  1. Laravel
  2. Lumen

Feel free to submit pull-requests for examples with other frameworks 😊

Running the tests

composer test

Authors

License

This project is licensed under the MIT License

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An unofficial php library for processing Hubtel USSD requests

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