Image Saved in Project tmp directory not showing

In my nestjs app deployed on DO app platform, I am uploading images and saving them in a directory tmp/folder/folder

The problem is when I GET the image and pass it into image tag’s src attributes it doesn’t work

<img src="tmp/folder/folder/30eb2c5251413f9ec49457bcab827db3" alt="">
this doesn't display the image

I don’t know what I am doing wrong here

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Site Moderator
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November 25, 2022

Hi @msadiq,

If you are writing files for temporary use, you can use the local filesystem. However, keep these two things in mind:

Instances are ephemeral, and are being continuously created and destroyed as the app is scaled, redeployed, etc, and any changes to the filesystem will be destroyed with the instance. This means that every redeployment of your app will reset the filesystem.

If you have a multi-instance app from scaling horizontally, you should remember that each instance has a separate filesystem. Because of this, you should not use the local filesystem for anything that needs to be stateful.

More about that here:

In our case, I’ll recommend using Spaces. DigitalOcean offers a product called Spaces, which is compatible with Amazon’s S3 buckets. Spaces provide programmatic access to file storage at scale.

Bobby Iliev
Site Moderator
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November 24, 2022

Hi there,

The App Platform storage is ephemeral, this means that after every new deployment, all of the data saved on there will be wiped out.

In order to store your data persistently, you should use S3 storage like the DigitalOcean Spaces:

That way your files will be uploaded to the S3 storage rather than the local storage of the App Platform.

Hope that this helps!



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