javascript - Sending multiple responses with the same response object in Express.js

Question

I have a long running process which needs to send data back at multiple stages. Is there some way to send back multiple responses with express.js

res.send(200, 'hello')
res.send(200, 'world')
res.end() 

but when I run curl -X POST localhost:3001/helloworld all I get is hello

How can I send multiple responses or is this not possible to do with express?

Answer 1

Use res.write().

res.send() already makes a call to res.end(), meaning you can't write to res anymore after a call to res.send (meaning also your res.end() call was useless).

EDIT: It is a Node.js internal function. See the documentation here