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Discussion on: Building with server-sent events with React and Node.js

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Replies for: Hi, How do you do sse if you want to wait for the long running query to be completed? How do you close connection if you already receive the comp...

Shubham Naik • Apr 16 '21

Hi there, sorry for late response!

I am not sure, could you rephrase this question?
you should invoke res.end() when you want to close the connection.

Best,
Shubham

Eko Andri Subarnanto • Apr 16 '21

Hi Shubham, thank you for your reply

Let's say that I want to perform a long running query in the backend, and I want to inform the UI the percentage of how much it is done, say 10%, 20% and so on. Is it through a sse connection or with something else? So the backend keeps sending the 'value' of how much the query has been done? And which part close the connection, UI atau backend?
Thank you.

Regards,
Andri

Shubham Naik • Apr 17 '21

You could use an SSE connection for this yes, and then you could close the connection when value = 100?

Eko Andri Subarnanto • Apr 18 '21

Oh I see, yes thank you for your reply