static KeyVaultHelper InitKeyVaultHelper()
{
string clientId = ConfigHelper.KeyVaultConfig["clientId"];
string thumbprint = ConfigHelper.KeyVaultConfig["clientCertificateThumbprint"];
X509Certificate2 certificate = CertificateHelper.GetCertificate(thumbprint, StoreName.My, StoreLocation.CurrentUser);
return(new KeyVaultHelper(clientId, certificate));
}