zend-blog-3-backend

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<?php
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namespace App\Service\IpInfo;
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class IpInfoDbClient implements IpInfoClientInterface
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{
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    private string $key;
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    /**
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     * @param string $key
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     */
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    public function __construct(string $key)
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    {
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        $this->key = $key;
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    }
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    public function getLocationInfo(string $ip): ?LocationInfo
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    {
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        if (filter_var($ip, FILTER_VALIDATE_IP)) {
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            $params = http_build_query([
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                'key' => $this->key,
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                'ip' => $ip,
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                'format' => 'json',
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            ]);
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            $context = stream_context_create([
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                'http' => [
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                    'timeout' => 5,
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                ],
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            ]);
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            try {
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                $json = file_get_contents('https://api.ipinfodb.com/v3/ip-city/?' . $params, false, $context);
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                sleep(2);
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                return LocationInfo::createFromArray(json_decode($json, true, 512, JSON_THROW_ON_ERROR));
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            } catch (\Throwable $e) {
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                return null;
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            }
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        }
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        return null;
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    }
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}
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