I need to generate access token for third party extension in Magento. I create integration, now I should sent request to /oauth/token/request in order to get a request token, but I get following error:
oauth_problem=The+signatire+is+invalid.+Verify+and+try+again.
My signature function is as follow
function sign($method, $url, $data, $consumerSecret, $tokenSecret)
{
$array=[
$method,
$url,
$data['oauth_nonce'],
$data['oauth_signature_method'],
$data['oauth_timestamp'],
$data['oauth_version'],
$data['oauth_consumer_key'],
$tokenSecret,
];
$url = urlEncodeAsZend($url);
$data = urlEncodeAsZend(http_build_query($array, '', '&'));
$data = implode('&', $array);
$secret = implode('&', [$consumerSecret, $tokenSecret]);
return base64_encode(hash_hmac('sha1', $data, $secret, true));
}
function urlEncodeAsZend($value)
{
$encoded = rawurlencode($value);
$encoded = str_replace('%7E', '~', $encoded);
return $encoded;
}
PS: my oauth_token is empty because in this step no token is created in Integrations.Doc says :
To generate the signature, you must use the HMAC-SHA1 signature method. The signing key is the concatenated values of the consumer secret and token secret separated by the ampersand (&) character (ASCII code 38), even if empty.
https://devdocs.magento.com/guides/v2.2/get-started/authentication/gs-authentication-oauth.html
I am using Magento 2.3
