示例

use aide_axum_sqlx_tx::Tx;
use sqlx::{Postgres, query};

async fn get_hello_world(
     mut tx: Tx<Postgres>,
 ) -> Result<String, String> {
    let (res,): (String,) = sqlx::query_as("select 'hello world'")
    .fetch_one(&mut *tx) // deref mut
    .await.map_err(|err|err.to_string())?;
    Ok(res)
 }