Authentication for WebSocket

After connecting to the WebSocket, the requester needs to send an authentication message.

Without a successful authentication the subsequent messages will be denied.

Payload of the message should be:

Field NameTypeReq'dComments
SendingTimeNumberTime of sending this message
PasswordStringSHA384 HMAC of the following string, using your API secret: AUTH-
ResetSeqNumFlagStringOnly: Y
DefaultApplVerIDStringFIX50SP2
UsernameStringAPI key given.