How to lock a Stream from new transaction

Question

I am running Mutlichain with Stream transaction, how can I issue a JSON-RPC API to "block" a stream from receiving new transaction ?
or block peer node from publishing to a particular stream ?

Thank you

Answer 1

Assuming the stream was not created as open to all for writing, you can remove write permissions from the appropriate blockchain address.

Comments

What is the JSON-RPC API command to be issued to request another stream peer node/address to unsubscribe from this stream?

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Subscribing/unsubscribing is a decision made by each node, so other nodes cannot force this. You could of course set up a stream as a messaging system to make requests to unsubscribe, but this cannot be enforced. (In MultiChain Enterprise there are stream read permissions which do allow enforcement.)