This code needs to know all the property names that the client asking.

Now i do the changes in the same file. In the previous one pseudocode contains both methods.
in pseudocode1.md contains the code only related to first method. Now i generalized the code.
we can see the existence of that object by checking value for that object is present r not.

i made a setup between producer to consumer. Currently doing storage part in server.

filtering done for single filter variable and for one client

filtering of data done for more than one variable and for one client
I keep telling use the same file . ( Basics of git ). There is no point in doing a version-1 version-1.1 etc. Then you do not need git at all . If you are not clear let us discuss again

Filtering of data done for more than one filter variable and for multiple clients

Reading filter variables from file.
comments for the code updated

it can be access by more than clients also

• it can be access by more than one client also.

updates feature done

To send the updates to the respective clients, the clients are identified by the socket id

Filtering and updating the events for different client requests with different parameters

Merkle tree with proof. But the proof works for the first record. I am figuring out to do for all the records.
I referred below link to implement the tree and proof
https://www.codeproject.com/Articles/1176140/Understanding-Merkle-Trees-Why-use-them-who-uses-t