Don't send message when refresh the browser

[david_cheong]

My case is in the other way round.

After my client refresh the page (manually by clicking the refresh button on the browser), LS server only send me the last action for each key value only. For example, the flow of the data should start from

1) send the add string to the browser (Command = add)
2) update the data value multiple time (Command = update)


After refresh, the LS server only send me the last update data value (Command=add).

My javascript will check if the add string is provided, than only will add the data to the page, else will get the value and update, in this case, no data being add to display and the value update is not successfully done.

Can please help to advice how and why this happen.

[giuseppe.corti]

Hi David,

In COMMAND mode for “Snapshot” it is intended the current state of the entire list, consisting of a set of itemEvents, one for each “key”.
Note that the snapshot is not a playback of the commands received so far.

So, it is the normal behaviour that you receive a "ADD" command with the last data values for each keys present in the Item at the moment of the snapshot request.

Anyway in COMMAND mode you must always consider that data values are ​​sent with the "ADD" commands. Whatever the implementation of your adapter
this can happen both in phase of snapshot request and in cases where the servrer must match multiple updates (an ADD with a subsequent UPDATE merged due to frequency or bandwidth limits for example).

Hope that help.