Open Data Access Layer that connect the whole world together.
OpenDAL is in alpha stage and has been early adopted by databend. Welcome any feedback at Discussions!
use anyhow::Result;
use futures::AsyncReadExt;
use futures::StreamExt;
use opendal::services::fs;
use opendal::ObjectMode;
use opendal::Operator;
#[tokio::main]
async fn main() -> Result<()> {
let op = Operator::new(fs::Backend::build().root("/tmp").finish().await?);
let o = op.object("test_file");
// Write data info file;
let w = o.writer();
let n = w
.write_bytes("Hello, World!".to_string().into_bytes())
.await?;
assert_eq!(n, 13);
// Read data from file;
let mut r = o.reader();
let mut buf = vec![];
let n = r.read_to_end(&mut buf).await?;
assert_eq!(n, 13);
assert_eq!(String::from_utf8_lossy(&buf), "Hello, World!");
// Get file's Metadata
let meta = o.metadata().await?;
assert_eq!(meta.content_length(), 13);
// List current dir.
let mut obs = op.objects("").map(|o| o.expect("list object"));
while let Some(o) = obs.next().await {
let meta = o.metadata().await?;
if meta.path().contains("test_file") {
let mode = meta.mode();
assert!(mode.contains(ObjectMode::FILE));
}
}
// Delete file.
o.delete().await?;
Ok(())
}Check out the CONTRIBUTING.md guide for more details on getting started with contributing to this project.
OpenDAL is licensed under Apache 2.0.