Hi engcoder,
* Please note that when creating a new Lightstreamer session, the Client can pass the Server some credential information (two generic strings can be used, conventionally named “user” and “password”).
The Server validates the credentials against the Metadata Adapter, that throws a specific exception if the validation fails otherwise the Lightstreamer session starts regularly.
That said, it is not strictly prohibited, start the session without specifying authentication credentials and send them later via a send_message request. In this case your MetaData Adapter,
in
notifyUserMessage method, has the responsibility to bind the session with the specified user and take any required actions in case of authentication failure.
Now, soon after the connection succeeds (or the send_message succeeds) the way to go is to use a client-specific item upon which push message responses or data.
Client specific items can be easily handled by exploiting the
getItems method: all the clients will create their subscription using the same item name, then the getItems method will customize the item name to make it unique per each client (see the example code in the getItems documentation). After that it will be up to the data adapter (that recive the Item name customized) to send the responses to the correct client;
* The data are encrypted if you use HTTPS connection. Please note that HTTPS is an optional feature in Lightstreamer Allegro edition and included in the Presto and Vivace editions.
Regards,
Giuseppe
