Nodejs reading and writing to the same file at the same time

Question

I have a node.js application with express which write html files, and sometimes update them. Is it a bad practice or breaking practice to write and read from the same file at the same time?

fs.writeFile(file_location,data)
res.sendFile(file_location)

The goal is to send the previously generated file before it updates.

Is it a bad practice to write the html data twice at the same time?

score 0 · Answer 1 · answered May 04 '22 at 09:01

0

This should solve your purpose. But, I would not prefer this approach. res.sendFile closes the connection and not the execution of the program and so the line next to it works.

res.sendFile(file_location)
fs.writeFileSync(file_location,data)

answered May 04 '22 at 09:01

Sathya

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Why don't you recommend it? Will the user only get the old file? Or can he get parts of the new file? – Eran Shmuel May 04 '22 at 09:17

Nodejs reading and writing to the same file at the same time

1 Answers1