Redirect uri didn't work on shiny server

Kuo Wang

I am new to using OAuth 2 with Dropbox.

I deployed a shiny app on the shinyapp.io server.  The function only tests if I can upload a file to Dropbox.

I tested the app on my local machine, and it worked well. However, when I deployed it on the shinyapp.io server, I set redirect uri as: "https://qml-lab.shinyapps.io/05_merds/oauth2callback/"

My Dropbox app's OAuth 2 redirect uri is also the same.

However, when I try to get authorized, the browser doesn't open the authorization page, and my app log only shows the following log while just waiting:

2025-02-25T05:00:42.706101+00:00 shinyapps[14070350]: Please point your browser to the following url: 2025-02-25T05:00:42.711022+00:00 shinyapps[14070350]: "https://www.dropbox.com/oauth2/authorize?client_id=<My ID>&redirect_uri=https%3A%2F%2Fqml-lab.shinyapps.io%2F05_merds%2Foauth2callback%2F&response_type=code&state=pg0LzPqOZv  "I tried to open the above address manually, but it shows Not Found.

Can anyone tell me what the problem is?

Thanks,

Kuo

DB-Des

Hi @Kuo Wang,

While we are unable to provide guidance or support for shinnyapp.io, we did check the authorization URL you provided, and it works on our end. Are you able to provide a screenshot of the "Not Found" page you are seeing when you navigate manually to the authorization URL logged by "shinyapps"?