how get json data from wordpress api?

Question

I created a REST API with wordpress to get some json data and this is the link is return all the data for me : https://alternativeviager.fr/wp-json/get-all-alternativeviager/v1/go

and from another domain i have another website made with wordpress also i create PHP script to get those data :

function file_contents($path) {
    $str = @file_get_contents($path);
    if ($str === FALSE) {
        throw new Exception("Cannot access '$path' to read contents.");
    } else {
        return $str;
    }
}

try {
    $json_data = file_contents("https://alternativeviager.fr/wp-json/get-all-alternativeviager/v1/go");
    var_dump($json_data);
} catch (Exception $e) {
    // Deal with it.
    echo "Error: " , $e->getMessage();
}

and i got this error instead :

Error: Cannot access 'https://alternativeviager.fr/wp-json/get-all-alternativeviager/v1/go' to read contents.

some help please

Thanks

Christopher Geary · Accepted Answer · 2021-07-04 20:25:54Z

As your other website is also WordPress, you should consider using the wp_remote_get() function that WordPress provides.

However, to answer your question using file_get_contents():

It seems your web server at alternativeviager.fr is blocking requests that do not contain the User-Agent header.

I've modified your file_contents function to include the User-Agent below. Feel free to choose a more suitable User-Agent.

function file_contents($path)
{
    $opts = [
        'http' => [
            'header' => 'User-Agent: PHP'
        ]
    ];

    $context = stream_context_create($opts);
    
    $str = @file_get_contents($path, false, $context);

    if ($str === FALSE) {
        throw new Exception("Cannot access '$path' to read contents.");
    }

    return $str;
}

I would also recommend you avoid using @ to suppress errors as this is preventing the underlying 403 response from being reported which would have helped you to debug the original issue.

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