Just a simple test to get some data via API doensn't work. I use the PHP example from their own website, but no result is printed. Source: https://pro.coinmarketcap.com/api/v1#section/Quick-Start-Guide Is there anything I do wrong? I use the sandbox-environment with the demo API key. Curl is installed at my server. Thanks a lot!
<?php
$url = 'https://sandbox-api.coinmarketcap.com/v1/cryptocurrency/listings/latest';
$parameters = [
'start' => '1',
'limit' => '5000',
'convert' => 'USD'
];
$headers = [
'Accepts: application/json',
'X-CMC_PRO_API_KEY: b54bcf4d-1bca-4e8e-9a24-22ff2c3d462c'
];
$qs = http_build_query($parameters); // query string encode the parameters
$request = "{$url}?{$qs}"; // create the request URL
$curl = curl_init(); // Get cURL resource
// Set cURL options
curl_setopt_array($curl, array(
CURLOPT_URL => $request, // set the request URL
CURLOPT_HTTPHEADER => $headers, // set the headers
CURLOPT_RETURNTRANSFER => 1 // ask for raw response instead of bool
));
$response = curl_exec($curl); // Send the request, save the response
print_r(json_decode($response)); // print json decoded response
curl_close($curl); // Close request
?>
When I var_dump($response) I'm getting:
error code: 1020
This is caused by the API detecting a bot/script.
Consider adding a user agent:
PHP cURL how to add the User Agent value OR overcome the Servers blocking cURL requests?
curl_setopt_array($curl, array(
CURLOPT_URL => $request,
CURLOPT_HTTPHEADER => $headers,
CURLOPT_RETURNTRANSFER => 1,
CURLOPT_USERAGENT => 'Mozilla/5.0 (Windows NT 6.2; WOW64; rv:17.0) Gecko/20100101 Firefox/17.0'
));
Now, the script outputs:
stdClass Object
(
[status] => stdClass Object
(
[timestamp] => 2021-08-30T15:06:20.200Z
[error_code] => 0
[error_message] =>
[elapsed] => 0
[credit_count] => 1
[notice] =>
)
[data] => Array
... and a lot more ...