How do i let Roblox Client receive real-time data from an external local helper app?

I’m trying to create real-time communication between the Roblox Client and a helper application running locally on the player’s computer.

As far i know, i can do this method but the latency gonna be high.

[Client] <==RemoteEvent/RemoteFunction==> [Server] <==HTTP==> [ Client Helper (localhost)]

Is there a way to do this method?

[Client] <== ==> [ Client Helper ]

Send Data To Helper Is Possible (Read Log File), What about sent data back to Client? :pray:

Also i tried to write log file content, but Roblox will not read the log file, it only writes.

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You dont have access to any http requests in client unfortunately.
Bloxtrap for example used very hacky method to read user’s console logs to implement RPC for discord that kinda counts as client → app communication but you cant do client ← app

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