Hi, I need to get approve code programmatically without this form via c# code this is my code How it should be modified in order to get approve code automatically without user actions ? Thanks in advance

Ivan_ wrote:...The problem is that this code does not work in my Application. It stops at Proce/ssCodeFlowAsync method and after that the eternal loading of response begins. Sometimes eternal loading begins at HandleJSRedirect and HandleOAuth2Redirect methods, I do not know what causes such behavior....Ivan_, the code is for one time use!!! Once you get your credentials (access token and refresh token) the code isn't valid anymore! You should keep received credentials (primary the refresh token) and reuse later when needed to construct client object. Why after the authentication (you have credentials already) are you calling still handlers designate for initial authentication? 🤔 I cannot see a reason.

How to programmatically get the Authorization code without requiring the user approval in OAuth 2.0

Здравко
Legendary | Level 20
3 years ago
Ivan_ wrote:
...
I need to get approve code programmatically ...
You can use redirect URL and listen to there. What actually are you using the 'http' object for? 😉
Ivan_ wrote:
...
How it should be modified in order to get approve code automatically without user actions ?
...
It's not possible for user side authentication (or least not a good idea). It's only possible on server side with pre-authentication and embedded credentials into the server, if applicable in your case.
- Ivan_
  Helpful | Level 6
  3 years ago
  Hi Здравко
  I tried to do this
  But I faced with such problem :
  Firstly I am sending the request in order to get Approve code
  After I performed confirmation in browser that I am trusting source I get this thing in browser
  If look closely to URL it contains code that I need to extract automatically
  It looks exactly as code in browser during usual approve
  
  However when I copied it to request for generating token
  I receive error
  
  I do not know what I am doing wrong
  If I execute this code
  It will give me approve code after confirmation in browser
  
  via which the token is generated successfully
  But when I try to do all same with only one difference, that after user's confirmation this approve code will be extracted by program, not by user manually via this code
  I get error that I described above
  To sum up : the only thing that I need to implement is to make automatic approve_code extraction, without making user to copy this code from browser manually after user approved that he trusts source
- Ivan_
  Helpful | Level 6
  3 years ago
  Hi Здравко
  I tried to do this
  But I faced with such problem :
  Firstly I am sending the request in order to get Approve code
  After I performed confirmation in browser that I am trusting source I get this thing in browser
  If look closely to URL it contains code that I need to extract automatically
  It looks exactly as code in browser during usual approve
  
  However when I copied it to request for generating token
  I receive error
  
  I do not know what I am doing wrong
  If I execute this code
  It will give me approve code after confirmation in browser
  
  via which the token is generated successfully
  But when I try to do all same with only one difference, that after user's confirmation this approve code will be extracted by program via this code
  I get error that I described above
  To sum up : the only thing that I need to implement is to make automatic approve code extraction, without making user to copy this code from browser manually
  - Здравко
    Legendary | Level 20
    3 years ago
    Ivan_ wrote:
    ...
    After I performed confirmation in browser that I am trusting source I get this thing in browser
    If look closely to URL it contains code that I need to extract automatically ...
    Yes, that's a desired behavior. The code (together with state) is passed as a HTTP query parameter (as denoted in documentation too).
    In addition to what Greg said, can be noted that pointed examples use second redirection step (don't ask me why; seems confusing, but...🤷). It can be implemented much simpler, but somebody have decided so (you are not mandated to follow the examples 1 to 1 - just get the idea out of there). For some reason the second redirection step seems doesn't comes up and so you can see the URL you are seeing. There can be different reasons, but at the beginning take a look if you give back to the browser the JS code responsible for the second redirection step and why this step fails (if you think still to follow the examples 1 to 1 - with step for second redirection).
Greg-DB
Dropbox Staff
3 years ago
Ivan_ Здравко is correct, to receive the authorization code programmatically, you should use a redirect URI. You can find more information on how this process works in the OAuth Guide and authorization documentation.

Also note that it is not possible to fully automate the OAuth process where the user chooses to authorize the app and the app then receives the resulting access token and optional refresh token. This needs to be done manually by the user at least once. If your app needs to maintain long-term access without the user manually re-authorizing it repeatedly, the app should request "offline" access so that it gets a refresh token. The refresh token doesn't expire and can be stored and used repeatedly to get new short-lived access tokens whenever needed, without the user manually reauthorizing the app

For the official Dropbox API v2 .NET SDK in C#, you can find an example of getting and using an access token and refresh token, via a redirect URI, in the OauthBasic example (non-PKCE, meant for server-side apps) as well as in the OAuthPKCE example (PKCE, meant for client-side apps).