tlane25
commented
5 days ago Hey @rlmcneary2!
I looked into this bug with @wconrad265 today and I think we understand the issue on a high level. When we ran netlify dev on a local instance of your repo, we were able to replicate the issue (first ping to the server successful, the second unsuccessful due to port already in use). Everytime a request hits the server, the createApp() function initializes app to listen on port 3000. Thus, first time works, but at the time of second request port 3000 is taken.
function createApp() {
const app = new koa();
app
.use(
logAround("catcher", async (ctx, next) => {
try {
await next();
} catch (err) {
console.error("main: err=", err);
ctx.status = 500;
ctx.body = err.message || JSON.stringify(err);
}
})
)
.use(logAround("funcstache", funcstache(SITE_PATH)));
app.listen(port, host, () => {
console.log(`--- index: koa app started; http://${host}:${port}`);
});
return app;
}We deployed your site into production and did not see the same issue. We believe this is because every time a request is sent in the production environment, a new, unrelated serverless function is created in the cloud.
We're looking into how serverless functions are deployed with netlify dev to find a solution!
wconrad265
Describe the bug
I have a function named "index" that uses serverless to return a Koa app. The function builds successfully and starts using dev. If I make requests against the root endpoint using a tool like postman, the cli will crash after the second request completes. It crashes in the browser too but it's easier to see the behavior in a tool that makes a single request.
Steps to reproduce
git clone https://codeberg.org/rlmcneary2/funcstache-website.gitnpm inpm run build && npm run devFollowing the second request others will fail because the cli process has exited.
Requests against the "images" function in the environment (a standard synchronous function) never fail.
Configuration
[build] environment = { NODE_VERSION = "20.16.0" }
[dev] autoLaunch = false
[context.dev] publish = "."
[functions."images"] included_files = ["./images/**"]
[functions."index"] included_files = ["./site/**"]
[[redirects]] force = true from = "/favicon.ico" status = 200 to = "/images/favicon.ico"
[[redirects]] force = true from = "/images/*" status = 200 to = "/.netlify/functions/images/:splat"
[[redirects]] force = true from = "/*" status = 200 to = "/.netlify/functions/index/:splat"
Environment
Ubuntu running in WSL2.
System: OS: Linux 5.15 Ubuntu 22.04.3 LTS 22.04.3 LTS (Jammy Jellyfish) CPU: (8) x64 11th Gen Intel(R) Core(TM) i7-1165G7 @ 2.80GHz Memory: 4.96 GB / 7.61 GB Container: Yes Shell: 5.8.1 - /usr/bin/zsh Binaries: Node: 20.16.0 - ~/.nvm/versions/node/v20.16.0/bin/node Yarn: 1.22.19 - /usr/bin/yarn npm: 10.8.1 - ~/.nvm/versions/node/v20.16.0/bin/npm npmPackages: netlify-cli: ^17.36.2 => 17.36.2