I am not able to connect to smartsheet API from the java spring boot app with the VPN on.

edited 06/21/23 in API & Developers

I can connect to the smartsheet API from postman and also Off VPN. I tried to add a proxy setting to connect to the APIs to get it working with VPN and I am getting this error.  Error Connecting to API com.smartsheet.api.SmartsheetException: com.fasterxml.jackson.core.JsonParseException: Unexpected character ('<' (code 60)): expected a valid value (JSON String, Number, Array, Object or token 'null', 'true' or 'false').


  • Genevieve P.

    Hey @Uma

    The Unexpected character ('<' error likely means that HTML has been returned instead of JSON, so probably an error page.

    I found another user attempting to do a similar process in Stack Overflow, see here. If members of the Smartsheet Community are unable to help, you may want to post in the Stack Overflow Community as well to connect with other developers.



    Join us at Smartsheet ENGAGE 2024 🎉
    October 8 - 10, Seattle, WA | Register now