public static AccessToken GetAccessToken(WeChatPayConfig config, string code)
{
if (string.IsNullOrEmpty(code))
{
throw new Exception("Authentication code must be provided");
}
AccessToken token = null;
AuthAccessTokenRequest authRequest = new AuthAccessTokenRequest(config);
authRequest.code = code;
BaseResponse res = authRequest.Execute();
if (res != null)
{
token = ((AccessTokenResponse)res).Access_Token;
}
return(token);
}
