Pfthb

I am working on Magento2 REST API with oAuth.
I am also using CURL to call REST API.

My API's are working If I call API's for Particular Customer Information or
Particular Product Information .

But When I call API to get all products then It will ask for searchCriteria.
And If I use search criteria then it is showing me error like "Invalid Signature". I have seen that many of us having this problem.

Is there any solution ?

Thanks in advanced.

My Code Snippet is as follows.

function sign($method, $url, $data, $consumerSecret, $tokenSecret)

 $url = urlEncodeAsZend($url);

 $data = urlEncodeAsZend(http_build_query($data, '', '&'));
 $data = implode('&', [$method, $url, $data]);

 $secret = implode('&', [$consumerSecret, $tokenSecret]);

 return base64_encode(hash_hmac('sha1', $data, $secret, true));


function urlEncodeAsZend($value)

 $encoded = rawurlencode($value);
 $encoded = str_replace('%7E', '~', $encoded);
 return $encoded;


$consumerKey = "myconsumerKey";
$consumerSecret = "myconsumerSecret";
$accessToken = "myaccessToken";
$accessTokenSecret = "myaccessTokenSecret";



$method = 'GET';

$searchCriteria = urlencode('searchCriteria[filterGroups][0][filters][0][field]=category_id&searchCriteria[filterGroups][0][filters][0][value]=1268&searchCriteria[filterGroups][0][filters][0][conditionType]=eq&searchCriteria[sortOrders][0][field]=created_at&searchCriteria[sortOrders][0][direction]=DESC&searchCriteria[pageSize]=10&searchCriteria[currentPage]=1');
//$searchCriteria['pageSize'] = 20;
$url = 'http://myhost.local/rest/V1/products?' . $searchCriteria;

//var_dump($url);exit;

//
$data = [
 'oauth_consumer_key' => $consumerKey,
 'oauth_nonce' => md5(uniqid(rand(), true)),
 'oauth_signature_method' => 'HMAC-SHA1',
 'oauth_timestamp' => time(),
 'oauth_token' => $accessToken,
 'oauth_version' => '1.0',
];

$data['oauth_signature'] = sign($method, $url, $data, $consumerSecret, $accessTokenSecret);
//var_dump($data['oauth_signature']);exit;
$curl = curl_init();

curl_setopt_array($curl, [
 CURLOPT_RETURNTRANSFER => 1,
 CURLOPT_URL => $url,
 CURLOPT_HTTPHEADER => [
 'Authorization: OAuth ' . http_build_query($data, '', ',')
 ]
]);

$result = curl_exec($curl);
curl_close($curl);
var_dump($result);exit;