First commit

composer.json

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+{
+    "name": "mehedi/bkash",
+    "description": "Bkash payment gateway",
+    "keywords": ["bkash", "payment", "gateway", "php", "laravel"],
+    "homepage": "https://github.com/MehediDracula/Bkash",
+    "type": "package",
+    "license": "MIT",
+    "authors": [
+        {
+            "name": "Mehedi Hassan",
+            "email": "MehediDracula@gmail.com"
+        }
+    ],
+    "require": {
+        "php": ">=5.5.9",
+        "illuminate/support": "5.0.* || 5.1.* || 5.2.* || 5.3.* || 5.4.*"
+    },
+    "autoload": {
+        "psr-4": {
+            "Mehedi\\Bkash\\": "src/"
+        }
+    },
+    "minimum-stability": "dev",
+    "prefer-stable": true
+}

src/Bkash.php

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+<?php
+
+namespace Mehedi\Bkash;
+
+use Exception;
+
+class Bkash
+{
+    /**
+     * Bkash api base url.
+     *
+     * @var string
+     */
+    protected $base_url = 'http://www.bkashcluster.com:9080/dreamwave/merchant/trxcheck/sendmsg';
+
+    /**
+     * Check bkash payment transaction.
+     *
+     * @param string $transactionId
+     * @return bool
+     * @throws Exception
+     */
+    public function check($transactionId)
+    {
+        $fields = [
+            'user' => config('bkash.username'),
+            'pass' => config('bkash.password'),
+            'msisdn' => config('bkash.mobile'),
+            'trxid' => $transactionId
+        ];
+
+        $response = $this->callApi($fields);
+
+        return $this->apiResponse($response);
+    }
+
+    /**
+     * Call the bkash api.
+     *
+     * @param array $fields
+     * @return array
+     */
+    protected function callApi($fields)
+    {
+        $ch = curl_init();
+
+        curl_setopt($ch, CURLOPT_URL, $this->base_url);
+        curl_setopt($ch, CURLOPT_POST, 1);
+        curl_setopt($ch, CURLOPT_POSTFIELDS, http_build_query($fields));
+        curl_setopt($ch, CURLOPT_RETURNTRANSFER, true);
+
+        $response = curl_exec($ch);
+
+        curl_close($ch);
+
+        return json_decode($response);
+    }
+
+    /**
+     * @param array $response
+     * @return bool
+     * @throws Exception
+     */
+    protected function apiResponse($response)
+    {
+        switch ($response->trxStatus) {
+            case '0010':
+            case '0011':
+                throw new Exception('Transaction is pending, please try again later.');
+                break;
+
+            case '0100':
+                throw new Exception('Transaction ID is valid but transaction has been reversed.');
+                break;
+
+            case '0111':
+                throw new Exception('Transaction is failed.');
+                break;
+
+            case '1001':
+                throw new Exception('Invalid MSISDN input. Try with correct mobile no.');
+                break;
+
+            case '1002':
+                throw new Exception('Invalid transaction ID.');
+                break;
+
+            case '1003':
+                throw new Exception('Authorization Error, please contact site admin.');
+                break;
+
+            case '1004':
+                throw new Exception('Transaction ID not found.');
+                break;
+
+            case '9999':
+                throw new Exception('System error, could not process request. Please contact site admin.');
+                break;
+
+            case '0000':
+                return true;
+        }
+    }
+}

src/BkashServiceProvider.php

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+<?php
+
+namespace Mehedi\Bkash;
+
+use Illuminate\Support\ServiceProvider;
+
+class BkashServiceProvider extends ServiceProvider
+{
+    /**
+     * Bootstrap the application services.
+     *
+     * @return void
+     */
+    public function boot()
+    {
+        $this->publishes([
+            __DIR__ . '/config/bkash.php' => config_path('bkash.php'),
+        ]);
+    }
+
+    /**
+     * Register the application services.
+     *
+     * @return void
+     */
+    public function register()
+    {
+        $this->app->singleton('bkash', function () {
+            return new Bkash;
+        });
+    }
+}

src/Facades/Bkash.php

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+<?php
+
+namespace Mehedi\Bkash\Facades;
+
+use Illuminate\Support\Facades\Facade;
+
+class Bkash extends Facade
+{
+    /**
+     * Get the binding in the IoC container
+     *
+     * @return string
+     */
+    protected static function getFacadeAccessor()
+    {
+        return 'bkash';
+    }
+}

src/config/bkash.php

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+<?php
+
+return [
+    'username' => env('BKASH_USERNAME', null),
+
+    'password' => env('BKASH_PASSWORD', null),
+
+    'mobile' => env('BKASH_MOBILE', null)
+];