🐛 Bug Report: "Entity Too Small" 400 error in file upload

👟 Reproduction steps

When I try to upload an image using the storage.createFile method, I get a response of 400 status code.

The image is 5.13 mb.

👍 Expected behavior

What ought to happen is that the image gets partitioned and uploaded in chunks of which 5mb is the set chunk size for multipart file upload to Amazon s3 storage provider.
5.13mb = 5mb + 135kb.

👎 Actual Behavior

What eventually happens is that the first chunk 5mb gets uploaded, but then the second and final chunk fails to upload giving the "Entity too small" error.
Meanwhile the final chunk is permitted to be smaller than 5mb.
So is it that the SDK doesn't know that that is the final chunk?

Someone posted a fix in a stack overflow link. Quoted
"
Apparently, it's part of the completeMultiPartUpload function. That's where the error is being thrown.

Details: The uploadPart is taking my data, whatever my chunk size is, and storing it in a pool of some sort. The error is being thrown at the maxPartSize, being too small. Changing that to anything greater than 5 MB solved the issue.
"

🎲 Appwrite version

Version 0.10.x

💻 Operating system

Windows

🧱 Your Environment

I use react-native-appwrite 0.13.0 . The mobile app is a native development build from EAS

👀 Have you spent some time to check if this issue has been raised before?

I checked and didn't find similar issue

🏢 Have you read the Code of Conduct?

I have read the Code of Conduct

@eldadfux

@eldadfux @TorstenDittmann @abnegate @suhasdeshpande @DylanG-64 @ChiragAgg5k

Please can someone help address this? It's been over a week I raised this issue.

@AMUZYZOHO

@AMUZYZOHO i see the issue:

there is a mismatch in content-range header and is actually being sent, in your case:

First chunk: Content-Range says 5MB, actual data is 5MB
Second chunk: Content-Range says 135KB, but actual data is 5MB which leads to error

it should instead be:

const chunkSize = Math.min(Service.CHUNK_SIZE, size - offset);

 let chunk = await FileSystem.readAsStringAsync(file.uri, {
     encoding: FileSystem.EncodingType.Base64,
     position: offset,
     length: chunkSize  // Use calculated size instead of fixed CHUNK_SIZE
 });

will fix it soon. thanks for raising this 🙏

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🐛 Bug Report: "Entity Too Small" 400 error in file upload #73

👟 Reproduction steps

👍 Expected behavior

👎 Actual Behavior

🎲 Appwrite version

💻 Operating system

🧱 Your Environment

👀 Have you spent some time to check if this issue has been raised before?

🏢 Have you read the Code of Conduct?

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🐛 Bug Report: "Entity Too Small" 400 error in file upload #73

Description

👟 Reproduction steps

👍 Expected behavior

👎 Actual Behavior

🎲 Appwrite version

💻 Operating system

🧱 Your Environment

👀 Have you spent some time to check if this issue has been raised before?

🏢 Have you read the Code of Conduct?

Activity

AMUZYZOHO commented on Sep 20, 2025

ChiragAgg5k commented on Oct 14, 2025

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