Woocommerce REST API incorrect signature - php

Question

I currently want to make a plugin for Woocommerce for some personal stuff I was trying to connect through the API but I get:
{"code":"woocommerce_rest_authentication_error","message":"Invalid
signature - provided signature does not match.","data":{"status":401}}
Would anyone know where the signature isn't valid?
my curl request:
$curl = curl_init();
$cnonce = hash('sha256', makeRandomString());
$requesturl = "http://my-marketplace.test/wp-json/wc/v2/products";
$timestamp = time();
$signature = createSignature($requesturl,$consumerKey, $consumerSecret, $timestamp, $cnonce);
echo $signature;
curl_setopt_array($curl, array(
CURLOPT_URL => $requesturl,
CURLOPT_RETURNTRANSFER => true,
CURLOPT_ENCODING => "",
CURLOPT_MAXREDIRS => 10,
CURLOPT_TIMEOUT => 30,
CURLOPT_HTTP_VERSION => CURL_HTTP_VERSION_1_1,
CURLOPT_CUSTOMREQUEST => "GET",
CURLOPT_POSTFIELDS => "",
CURLOPT_HTTPHEADER => array(
"authorization: OAuth oauth_consumer_key=\"".$consumerKey."\",oauth_signature_method=\"HMAC-SHA1\",oauth_timestamp=\"".$timestamp."\",oauth_nonce=\"".$cnonce."\",oauth_signature=\"".$signature,
"cache-control: no-cache",
"content-type: multipart/form-data",
),
));
$response = curl_exec($curl);
$err = curl_error($curl);
curl_close($curl);
if ($err) {
echo "cURL Error #:" . $err;
} else {
echo $response;
}
And my createSignature() function:
function createSignature($myurl, $consumerKey, $consumerSecret, $timestamp, $cnonce){
$sig = "GET&".rawurlencode($myurl)."&";
$sig = $sig.rawurlencode("oauth_consumer_key=".$consumerKey."&
oauth_signature_method=HMAC-SHA1&
oauth_timestamp=".$timestamp."&
oauth_nonce=".$cnonce);
return hash_hmac ( "sha1",$sig, $consumerSecret);
}