Using the Abstract geolocation API with the Symfony HTTP client

Published on 2022-02-01 • Modified on 2022-02-01

In this snippet, we see how to use the Abstract geolocation API with the Symfony HTTP client. I use a factory to create the client, but in a Symfony application, you should inject the HttpClientInterface or declare your clients in the framework.yaml file. RedirectionExceptionInterface catch 3xx responses, ClientExceptionInterface catch 4xx responses, and finally ServerExceptionInterface catches the 5xx ones. For example, if your API key is not correct, you will get a 401 status code (HTTP_UNAUTHORIZED). GDPR: Nothing is logged nor stored.

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<?php

declare(strict_types=1);

namespace App\Controller\Snippet;

use Symfony\Component\HttpClient\HttpClient;
use Symfony\Component\HttpFoundation\Request;
use Symfony\Contracts\HttpClient\Exception\ClientExceptionInterface;
use Symfony\Contracts\HttpClient\Exception\RedirectionExceptionInterface;
use Symfony\Contracts\HttpClient\Exception\ServerExceptionInterface;
use Symfony\Contracts\HttpClient\Exception\TransportExceptionInterface;

use function Symfony\Component\String\u;

/**
 * I am using a PHP trait to isolate each snippet in a file.
 * This code should be called from a Symfony controller extending AbstractController (as of Symfony 4.2)
 * or Symfony\Bundle\FrameworkBundle\Controller\Controller (Symfony <= 4.1).
 * Services are injected in the main controller constructor.
 */
trait Snippet188Trait
{
    public function snippet188(Request $request): void
    {
        $ip = $request->getClientIp();
        if (u($ip)->isEmpty()) {
            echo 'IP not found 😞.';

            return;
        }

        try {
            $httpClient = HttpClient::createForBaseUri('https://ipgeolocation.abstractapi.com');
            $response = $httpClient->request('GET', '/v1', [
                'query' => [
                    'api_key' => $this->getParameter('abstract_api_key'), // your secret API key
                    'ip_address' => $ip, // If this parameter is not set, it uses the one of the current request
                ],
            ]);
            $data = $response->toArray();
        } catch (RedirectionExceptionInterface|ClientExceptionInterface|ServerExceptionInterface|TransportExceptionInterface $e) {
            echo 'Error when accessing the Abstract API service, sorry 😞, response code: '.$e->getCode();

            return;
        }

        /** @var array{total_time: ?string} $info */
        $info = $response->getInfo();

        echo 'Your IP is: '.($data['ip_address'] ?? 'NA').PHP_EOL;
        echo 'City: '.($data['city'] ?? 'NA').PHP_EOL;
        echo 'Flag: '.($data['flag']['emoji'] ?? 'NA').PHP_EOL;
        echo 'Total time: '.($info['total_time'] ?? 'NA').' sec'.PHP_EOL;

        // That's it! 😁
    }
}

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