Receiving "unauthorized_client" error when using php curl for auth/token {
"error" : "unauthorized_client",
"error_description" : "Unauthorized for this grant type",
"errors" : [ {
"errorCode" : "OAU-251",
"message" : "Unauthorized for this grant type"
} ]
}Here is my code below:-$ch = curl_init();
curl_setopt($ch, CURLOPT_URL, "https://platform.devtest.ringcentral.com/restapi/oauth/token");
curl_setopt($ch, CURLOPT_RETURNTRANSFER, 1);
curl_setopt($ch, CURLOPT_POSTFIELDS, "username=+12048184079&password=Reset321$$&extension=101&grant_type=password");
curl_setopt($ch, CURLOPT_POST, 1);
curl_setopt($ch, CURLOPT_USERPWD, "1RjNgM-LTxxxxxFuE-ggrHA" . ":" . "524fjcxxxxxxxxxxCPclIZHxxxxxx_FdfegzA");
$headers = array();
$headers[] = "Accept: application/json";
$headers[] = "Content-Type: application/x-www-form-urlencoded"
