Menü REST API Integration Documentation Register Requests OAuth 2 Tokens Grant Types implicit authorization_code password refresh_token Scopes Captchas Generate Usage Error Handling Response Object Error Codes Long Polling Security HTTPS only How-To Getting started Uploading a file Sharing a folder Using long polling Captcha security Reference Docs Usage Download the captcha Display the captcha to the user with some sort of input field Send your original rest request with additional query parameters captchaId=YOUR_CAPTCHA_ID captchaResponse=THE_USER_RESPONSE