* array ( * 'oauth_version' => '1.0', * 'oauth_signature_method' => 'HMAC-SHA1', * 'oauth_nonce' => 'rI7PSWxTZRHWU3R', * 'oauth_timestamp' => '1377183099', * 'oauth_consumer_key' => 'a6aa81cc3e65e2960a4879392445e718', * 'oauth_signature' => 'VNg4mhFlXk7%2FvsxMqqUd5DWIj9s%3D' * ) * * @param string $requestUrl - The request Url. * @param string $httpMethod - (default: 'POST') * @return array - The request token/secret pair. * 
     * array (
     *         'oauth_token' => 'gshsjkndtyhwjhdbutfgbsnhtrequikf',
     *         'oauth_token_secret' => 'gshsjkndtyhwjhdbutfgbsnhtrequikf'
     * )
     *
* @throws \Magento\Framework\Oauth\Exception - Validation errors. */ public function getRequestToken($params, $requestUrl, $httpMethod = 'POST'); /** * Get access token for a pre-authorized request token. * * @param array $params - Array containing parameters necessary for requesting Access Token. * 
     * array (
     *         'oauth_version' => '1.0',
     *         'oauth_signature_method' => 'HMAC-SHA1',
     *         'oauth_token' => 'a6aa81cc3e65e2960a487939244sssss',
     *         'oauth_nonce' => 'rI7PSWxTZRHWU3R',
     *         'oauth_timestamp' => '1377183099',
     *         'oauth_consumer_key' => 'a6aa81cc3e65e2960a4879392445e718',
     *         'oauth_signature' => 'VNg4mhFlXk7%2FvsxMqqUd5DWIj9s%3D',
     *         'oauth_verifier' => 'a6aa81cc3e65e2960a487939244vvvvv'
     * )
     *
* @param string $requestUrl - The request Url. * @param string $httpMethod - (default: 'POST') * @return array - The access token/secret pair. * 
     * array (
     *         'oauth_token' => 'gshsjkndtyhwjhdbutfgbsnhtrequikf',
     *         'oauth_token_secret' => 'gshsjkndtyhwjhdbutfgbsnhtrequikf'
     * )
     *
* @throws \Magento\Framework\Oauth\Exception */ public function getAccessToken($params, $requestUrl, $httpMethod = 'POST'); /** * Validate an access token request. * * @param array $params - Array containing parameters necessary for validating Access Token. * 
     * array (
     *         'oauth_version' => '1.0',
     *         'oauth_signature_method' => 'HMAC-SHA1',
     *         'oauth_token' => 'a6aa81cc3e65e2960a487939244sssss',
     *         'oauth_nonce' => 'rI7PSWxTZRHWU3R',
     *         'oauth_timestamp' => '1377183099',
     *         'oauth_consumer_key' => 'a6aa81cc3e65e2960a4879392445e718',
     *         'oauth_signature' => 'VNg4mhFlXk7%2FvsxMqqUd5DWIj9s%3D'
     * )
     *
* @param string $requestUrl - The request Url. * @param string $httpMethod - (default: 'POST') * @return int Consumer ID. * @throws \Magento\Framework\Oauth\Exception - Validation errors. */ public function validateAccessTokenRequest($params, $requestUrl, $httpMethod = 'POST'); /** * Validate an access token string. * * @param string $accessToken - The access token. * @return int - Consumer ID if the access token is valid. * @throws \Magento\Framework\Oauth\Exception - Validation errors. */ public function validateAccessToken($accessToken); /** * Build the Oauth authorization header for an authenticated API request * * @param array $params - Array containing parameters to build the Oauth HTTP Authorization header * 
     *  array (
     *      'oauth_consumer_key' => 'edf957ef88492f0a32eb7e1731e85d',
     *      'oauth_consumer_secret' => 'asdawwewefrtyh2f0a32eb7e1731e85d',
     *      'oauth_token' => '7c0709f789e1f38a17aa4b9a28e1b06c',
     *      'oauth_secret' => 'a6agsfrsfgsrjjjjyy487939244ssggg',
     *      'custom_param1' => 'foo',
     *      'custom_param2' => 'bar'
     *   );
     *
* @param string $requestUrl e.g 'http://www.example.com/endpoint' * @param string $signatureMethod (default: 'HMAC-SHA1') * @param string $httpMethod (default: 'POST') * @return string * 
     * OAuth oauth_version="1.0", oauth_signature_method="HMAC-SHA1", oauth_nonce="5X1aWR2qzf2uFm1",
     * oauth_timestamp="1381930661", oauth_consumer_key="34edf957ef88492f0a32eb7e1731e85d",
     * oauth_token="7c0709f789e1f38a17aa4b9a28e1b06c", oauth_signature="agVxK0epXOOeQK4%2Bc7UAqUXoAok%3D"
     * 
     * @throws \Magento\Framework\Oauth\Exception
     */
    public function buildAuthorizationHeader(
        $params,
        $requestUrl,
        $signatureMethod = self::SIGNATURE_SHA1,
        $httpMethod = 'POST'
    );
}