Dropbox Account Id vs UID

These are just different formats for identifying Dropbox accounts. Is it causing any problems in your app?

I'm trying to figure out which one to use to uniquely identify a user in a consumer app. Are they both globally unique? Which one makes more sense for me to use for this purpose?

They're both globally unique, but the longer one from getAccountId is preferred in general, and is required when interacting with the API v2 calls themselves, e.g., when specifying a user.

Is there  a way to get UID in Java API ? 

I have been using the UID as a user identifier in my APP ...

I have been able to access this in Swify and .NET

RTS, API v2 only uses the new account ID format, so we recommend moving to that if you're using API v2. You can use the getAccount method to get account information, including the account ID, from API v2 in the Java SDK. You can continue using API v1 methods if necessary though.

My app has been around since before V2 ... I already have UID in the database.

I have already converted OSX, IOS to V2, developed the .NET APP.

All of those have access to UID. 

Now you are recommending that I stay on V1 for android ? 

Is this a long term stable identifier ? 

API v1 isn't deprecated, so you can use it if you want, but we certainly recommend moving to API v2 when possible.

For API v2, you should use the account ID, which is stable. As part of migrating to API v2, you should get the account IDs. I.e., for any access token, call the getAccount method to get the corresponding account ID.

OK, but I hope this is stable for V3 .... 

user identification is critical for resource not maintained entirely on your server.

I have been inserted the UID in the Database for unique purpose. It is an integer value. As i will integrate the V2 what i will do. 

For Example:

V1

User A : uid:123456

get the data from datatbase like as

Select * from User where uid=123456 -  Is working fine.

V2

User A : dbid:asd3-asdf ds 

Only coming the dbid is not there uid. How to migrate. Already 1000 user have uid. How to change dbid.

Please give solution.

Arusnundar, you can call /2/users/get_current_account for any given account using the account's access token and store the new account_id value from there.