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Caution
You're viewing documentation for an unstable version of Scylla Rust Driver. Switch to the latest stable version.
The driver uses the tracing crate for all logs.
To view the logs you have to create a tracing
subscriber to which all logs will be written.
To just print the logs you can use the default subscriber:
use tracing::info;
#[tokio::main]
async fn main() -> Result<(), Box<dyn Error>> {
// Install global collector configured based on RUST_LOG env var
// This collector will receive logs from the driver
tracing_subscriber::fmt::init();
let uri = std::env::var("SCYLLA_URI")
.unwrap_or_else(|_| "127.0.0.1:9042".to_string());
info!("Connecting to {}", uri);
let session: Session = SessionBuilder::new().known_node(uri).build().await?;
session
.query(
"CREATE KEYSPACE IF NOT EXISTS ks WITH REPLICATION = \
{'class' : 'NetworkTopologyStrategy', 'replication_factor' : 1}",
&[],
)
.await?;
// This query should generate a warning message
session.query("USE ks", &[]).await?;
Ok(())
}
To start this example execute:
RUST_LOG=info cargo run
The full example is available in the examples
folder
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