AWS SDK for JavaScript v3 PutObjectCommand error 'A header you provided implies functionality that is not implemented' - amazon-s3

Question

I'm trying to upload a file with node.js from my client app (electron) to an S3 bucket in this manner:
const { S3Client, PutObjectCommand } = require('#aws-sdk/client-s3');
const s3Client = new S3Client({
region: 'eu-central-1',
credentials: {
accessKeyId: 'access',
secretAccessKey: 'secret',
},
});
const uploadFileToS3 = async (f) => {
const bucketParams = {
ACL: 'private',
Bucket: 'bucket',
Key: f.name,
Body: f.data,
ServerSideEncryption: 'AES256',
ContentType: 'image/png',
};
try {
return await s3Client
.send(new PutObjectCommand(bucketParams))
.then((result) => {
return process.send({
type: 'success',
fileName: f.name,
result,
});
});
} catch (erro) {
process.send({
type: 'error',
fileName: f.name,
error: erro,
});
}
};
process.on('message', (file) => {
uploadFileToS3(file);
});
I get the following error, that I'm unable to understand:
error: {
name: 'NotImplemented',
'$fault': 'client',
'$metadata': {
httpStatusCode: 501,
requestId: 'PXEBV6H4MX3',
extendedRequestId: 'yyyyyy',
attempts: 1,
totalRetryDelay: 0
},
Code: 'NotImplemented',
Header: 'Transfer-Encoding',
RequestId: 'PXEBV6H4MX3',
HostId: 'yyyyyy',
message: 'A header you provided implies functionality that is not implemented'
}
The file is a buffer generated with:
fs.readFileSync(pth)
Any idea of what could caused this error ?

Answer 1

Seems like the buffer created with
fs.readFileSync(pth)
was rejected and I could only use a stream:
const readableStream = await createReadStream(Buffer.from(f));
Maybe I'm wrong but it is possible that the actual SDK version is unable to accept a buffer yet, this could be the reason for that "missing functionality" message.