How to find out if email address is team member?

[vsTheijs]

I want to know if it is possible to check through the (basic) API whether a given email address is a team member or not.

My case is the following:

I want to let people share files through our own app. When the active user has Dropbox Teams and sharing files externally is turned off, I would like to detect whether a 'Share' operation will work before actually performing it. For this I would like to check the email address of the recipient that the user has specified. If the recipient is a Team Member, sharing is allowed. Otherwise a message is shown and sharing is not allowed.

I figured out how to check if external sharing is allowed, by checking the SharingPolicies for the active account. I get the active account using 'Users/GetCurrentAccount'.

If I could get the AccountId for the recipient, I could call 'Users/GetAccount' which should tell me whether it is a Team Member or not. However, I don't know how to get the AccountId for a given email address.

Can someone tell me how to get the AccountId for a given email address, or if I could use a different approach to check whether an email address is a Team Member?

NOTE: I would like to avoid using the Business API.

[Greg-DB · Accepted solution]

No, unfortunately it's not possible to get the account ID for any given email address, or otherwise check if the corresponding account is on the same team, but I'll pass this along as a feature request. I can't promise if or when that might be implemented though.