Consuming payment gateway API in Laravel controller

Hi guys, I am doing a payment gateway integration for a Laravel 5.8 API project. So below is the logic I have come up with

User confirms they want to pay for a product
They hit this route Route::post('products/{product}/order', 'OrderController@store');
In the store method, I will consume the payment gateway initiate transaction API
Check the status of the transaction in the same controller method
Update the order table based on response from the gateway

Here's a summary version of OrderController

<?php
...
use GuzzleHttp\Client;


class OrderController extends Controller
{
    public function store(Request $request, Product $product)
    {
        // if status is loaded, allow order
        if ($product->status == 'loaded') {

            // redirect user to payment gateway
            $payment = new Client();

            $uri = 'https://sandbox.gateway.com/api/v1/merchant/transactions/init-transaction';

            $paylaod = ["amount" => 100"];

            return $payment->post($uri, $paylaod);

            // do something with returned object
        }
    }
}

When I run my code, I get 500 internal server error

GuzzleHttp\Exception\ClientException: Client error: POST https://sandbox.gateway.com/api/v1/merchant/transactions/init-transaction resulted in a 400 Bad Request

Why am I getting this error?

audunru

6 years ago

Level 4

That error is from sandbox.gateway.com. You should probably dump the full response from the gateway to see if they included an error message.

$response = $payment->post($uri, $paylaod);

$contents = $response->getBody()->getContents();

dump($contents)

Run php artisan dump before hitting the endpoint to see the contents in your console.

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