/**
* @param string $uri
* @param array $payload
*
* @return ResponseInterface
*/
private function signedPostRequest($uri, array $payload)
{
$header = ['alg' => 'RS256', 'jwk' => ['kty' => 'RSA', 'n' => Base64Url::encode($this->privateKey->getDetails()['rsa']['n']), 'e' => Base64Url::encode($this->privateKey->getDetails()['rsa']['e'])]];
$protected = $header;
$protected['nonce'] = $this->getLastNonce();
$payload64 = Base64Url::encode(json_encode($payload, JSON_UNESCAPED_SLASHES));
$protected64 = Base64Url::encode(json_encode($protected));
$signed64 = Base64Url::encode($this->privateKey->sign($protected64 . '.' . $payload64));
return $this->request('POST', $uri, ['json' => ['header' => $header, 'protected' => $protected64, 'payload' => $payload64, 'signature' => $signed64]]);
}
