How can I meld twitter account with an existing account?

[kaushik1979]

In my app, I am asking user to update their email-id for a twitter sign-in. Once I know their email-id, I can automatically meld the account with the same email-id (if another with fb/google/linked-in/email already exists).

Is there a way I can make a call on the server and the accounts will be melded?

[splendido]

once you've discoverd a pair of accounts to be melded you can execute

AccountsMeld.meldAccounts(user1, user2);

where user1 and user2 are two objects taken form the Meteor.users collection.
See also meldAccounts code