The API key I created yesterday has expired today

cankayaalperen An 'expired_access_token' error indicates that the call failed because it was made with a short-lived access token that has expired. In addition to the post that Здравко linked to, you can find more information on how this works in the following resources:

• https://developers.dropbox.com/oauth-guide
• https://www.dropbox.com/developers/documentation/http/documentation#authorization
• https://dropbox.tech/developers/using-oauth-2-0-with-offline-access

As for your uploads going to the folder with your name, it sounds like you're referring to your member folder. By default, API calls to the Dropbox API operate in the "member folder" of the connected account, not the "team space". That means that by default, the contents of the team space will not be found, and uploads will go to your member folder.

You can configure API calls to operate in the "team space" instead though, in order to interact with files/folders in the team space, if needed/desired. To do so, you'll need to set the "Dropbox-API-Path-Root" header. You can find information on how to use this in the Team Files Guide.