Xuanwo commented on issue #3014:
URL:
https://github.com/apache/incubator-opendal/issues/3014#issuecomment-1707653536
Thanks for the report!
The root cause here is `tokio::io::copy(&mut reader, &mut
writer).await.unwrap();` won't call `write`, so no real `PUT` request has been
sent.
I have tested with:
```rust
let mut writer = op
.writer_with("/emptyfile.txt")
.content_length(data.len() as u64)
.await
.unwrap();
writer.write("").await.unwrap();
writer.close().await.unwrap();
```
I believe this will be fixed after our buffer refactor.
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