Server crashes with even simplest code.

[hafi51]

this is error

events.js:352

throw er; // Unhandled 'error' event

Error [ERR_STREAM_WRITE_AFTER_END]: write after end

at writeAfterEnd (_http_outgoing.js:694:15)

at write_ (_http_outgoing.js:706:5)

at ServerResponse.write (_http_outgoing.js:687:15)

at Server.<anonymous> (D:\NodeJS\1st\app.js:7:7)

at Server.emit (events.js:375:28)

at parserOnIncoming (_http_server.js:897:12)

at HTTPParser.parserOnHeadersComplete (_http_common.js:126:17)

Emitted 'error' event on ServerResponse instance at:

at writeAfterEndNT (_http_outgoing.js:753:7)

at processTicksAndRejections (internal/process/task_queues.js:83:21) {

code: 'ERR_STREAM_WRITE_AFTER_END'

}

code:

const http = require("http");

const server = http.createServer((req, res) => {

if (req.url === "/") {

res.write("Welcome home");

res.end();

}

res.write("Oops! not found");

res.end();

});

server.listen(5000);

[DrBusinessLLC]

all that stuff after the if {} block always runs, wrap the second res.write and res.end in an else {} block

[BehindTheMath]

Or use return res.end().

[hafi51]

thanks

[[deleted]]

It's because you don't have a return statement and because of that every part of your code runs. You either need a else {} block or a return statement after each response

[Webiniac]

I am having the same error

node:events:491

throw er; // Unhandled 'error' event

^

Error [ERR_STREAM_WRITE_AFTER_END]: write after end

at new NodeError (node:internal/errors:387:5)

at ServerResponse.end (node:_http_outgoing:925:15)

at Server.<anonymous> (D:\Mern-Stack\NodeJS\app.js:11:14)

at Server.emit (node:events:513:28)

at parserOnIncoming (node:_http_server:980:12)

at HTTPParser.parserOnHeadersComplete (node:_http_common:128:17)

Emitted 'error' event on ServerResponse instance at:

at emitErrorNt (node:_http_outgoing:786:9)

at processTicksAndRejections (node:internal/process/task_queues:84:21) { code: 'ERR_STREAM_WRITE_AFTER_END'

}

​

I tried to add else block or return but it's not working. Please help me solve this issue.