Deciding message delivery to a specific user - need help with a sample/example

vinayms01

Hello, we have a use case where we want to send a message to a specific user depending on some logic in Data Adapter.
For examples if we when data adapter receives data { id=10, age=20 } it needs to go to user with id=10 only. Other connected connections should not receive that message.

Do we have a sample which shows this type of implementation. Most of the sample I saw were publishing to all connected users.

Giuseppe Corti

Hi vinayms01,

A typical example of Personal messages (unicast) is the "Basic Messenger Demo"; please find the full code from GitHub: https://github.com/Lightstreamer/Lightstreamer-example-Messenger-client-javascript
In this case each client subscribes directly to a personalized item:

https://github.com/Lightstreamer/Lightstreamer-example-Messenger-client-javascript/blob/master/src/index.html#L202

But an alternative could be that all clients subscribe to the same Item; but through the getItems method (https://sdk.lightstreamer.com/ls-adapter-inprocess/7.3.0/api/com/lightstreamer/interfaces/metadata/MetadataProvider.html#getItems(java.lang.String,java.lang.String,java.lang.String)) of the Metadata Adapter this is transformed into a personal item simply by adding a suffix (or prefix) identifying the user.
In your case could be the id.

Regards,
Giuseppe

vinayms01

Thank you for quick reply. Will go thorough provided links and reach back for any further question.