sqlx::query*```rust
async fn greet(pool: web::Data
↓
rust
async fn greet(pool: web::Data<sqlx::SqlitePool>) -> actix_web::Result<String> {
#[allow(unused_imports)]
use opentelemetry::trace::{Span, TraceContextExt, Tracer};
let __tracer = opentelemetry::global::tracer(&*TRACE_NAME);
let __ctx = opentelemetry::Context::current_with_span(__tracer.start("fn:greet"));
let __guard = __ctx.clone().attach();
let __span = __ctx.span();
let r: Vec<i32> = {
let __ctx = opentelemetry::Context::current_with_span(__tracer.start("db"));
let __guard = __ctx.clone().attach();
let __span = __ctx.span();
{
__span.set_attribute(opentelemetry::KeyValue::new("sql", "SELECT id"));
sqlx::query_scalar("SELECT id")
}.fetch_all(pool.as_ref()).await
}.map_err(SqlxError)?;
Ok(format!("Hello {:?}!", r))
}
usage:
```rust
fn my_func() {} ```
| name | action |
|:--------------|:---------------------------------------------------------------------|
| name/namedef | Tracer name token. name must be str, name_def parse as rust expr |
| debug | Dump the migrated code to ./target/autospan or /tmp/autospan |
| nofuncspan | Not generate function level span split |
| allawait | Generate span for all await |