private async Task <string> GenerateAccessTokenAsync(OioIdwsMatchEndpointContext context, OioIdwsToken storedToken)
{
var uniqueKey = _keyGenerator.GenerateUniqueKey();
_logger.WriteEntry(Log.NewUniqueKeyGenerated(uniqueKey));
await _securityTokenStore.StoreTokenAsync(uniqueKey, storedToken);
_logger.WriteVerbose("Token information was committed to the Token Store");
//store the Expiry time directly in the protected access token, allowing the Authorization Server to quickly validate the token when asked to retrieve information
var properties = new AuthenticationProperties
{
ExpiresUtc = storedToken.ExpiresUtc
};
properties.Value(uniqueKey);
var accessToken = context.Options.TokenDataFormat.Protect(properties);
return(accessToken);
}