bb8-postgres 0.7.0

Full-featured async (tokio-based) postgres connection pool (like r2d2)
Documentation 
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use bb8::Pool;
use bb8_postgres::PostgresConnectionManager;

// Select some static data from a Postgres DB
//
// The simplest way to start the db is using Docker:
// docker run --name gotham-middleware-postgres -e POSTGRES_PASSWORD=mysecretpassword -p 5432:5432 -d postgres
#[tokio::main]
async fn main() {
    let pg_mgr = PostgresConnectionManager::new_from_stringlike(
        "postgresql://postgres:mysecretpassword@localhost:5432",
        tokio_postgres::NoTls,
    )
    .unwrap();

    let pool = match Pool::builder().build(pg_mgr).await {
        Ok(pool) => pool,
        Err(e) => panic!("builder error: {:?}", e),
    };

    let connection = pool.get().await.unwrap();
    connection.simple_query("BEGIN").await.unwrap();

    let err = match connection.prepare("SELECT 1").await {
        Ok(select) => match connection.query_one(&select, &[]).await {
            Ok(row) => {
                println!("result: {}", row.get::<usize, i32>(0));
                None
            }
            Err(e) => Some(e),
        },
        Err(e) => Some(e),
    };

    let finalize_query = match &err {
        None => "COMMIT",
        Some(_) => "ROLLBACK",
    };

    let _ = connection.simple_query(finalize_query).await;
    err.unwrap();
}