save file on file system not found

i've create api to save file to public files

after i upload new file on railway host, 404 where i acess it,
but if i upload on local host and deploy app to railway, it's work

anyone can help me

help

What server framework are you using?

next js

railway disk is ephemeral, did you add a volume?
https://docs.railway.app/reference/volumes

sure
"result": [
{
"src": "../../uploads/1695115440009What-is-Generative-AI-what-are-Foundation-Models-and-why-do-they-matter-scaled.webp",
"name": "1695115440009What-is-Generative-AI-what-are-Foundation-Models-and-why-do-they-matter-scaled.webp"
},
{
"src": "../../uploads/1695137501651Pittsburgh_Pirates-Logo-PNG8.png",
"name": "1695137501651Pittsburgh_Pirates-Logo-PNG8.png"
}
],

right side is image where i upload on railway host
left side is image where i deploy it
i think it's because i use process.cwd() to find root of my app?

await fs.writeFile(
      path.join(process.cwd(), "public/uploads/" + filename),
      buffer
    );

but i get this result from

 const files = await fs.readdir(path.join(process.cwd(), "public/uploads"));
    const result = files.map((file) => ({
      src: "../../uploads/" + file,
      name: file,
    }));

you've to save the files on where your disk is mounted, make sure you're doing that

try to mount the volume to /app/public/uploads

btw i mount volume /public, not /app/public
it's the problem?

try to mount the volume to the mount point I just provided

can we see container file system on railway?
maybe it store on wrong path

your app can, but railway provides no ssh or ftp access
try the mount point I provided please

ok i'll try
thanks @Brody
problem still same, i've chage /public/uploads to /public, and create volume on /public, but same

have you tried the exact mount point I gave you?

yes
but all public file not found

so i change locate file upload to /public and volume on /public
but same problem

all public file there, but when i upload new public file it'll 404

it just seems like you are getting your paths all wrong, take a step back and think all this over

solved with creating endpoint to return image

next js /public path for static file only

awesome, glad you solved it!

thanks

watch out, your code might be vulnerable if you're accepting path from the user and concatening it somewhere.
https://owasp.org/www-community/attacks/Path_Traversal