Files

62 lines
1.9 KiB
Rust

use bb8::PooledConnection;
use common_utils::errors;
use diesel::PgConnection;
use error_stack::ResultExt;
pub type PgPool = bb8::Pool<async_bb8_diesel::ConnectionManager<PgConnection>>;
pub type PgPooledConn = async_bb8_diesel::Connection<PgConnection>;
/// Creates a Redis connection pool for the specified Redis settings
/// # Panics
///
/// Panics if failed to create a redis pool
#[allow(clippy::expect_used)]
pub async fn redis_connection(
redis: &redis_interface::RedisSettings,
) -> redis_interface::RedisConnectionPool {
redis_interface::RedisConnectionPool::new(redis)
.await
.expect("Failed to create Redis Connection Pool")
}
pub async fn pg_connection_read<T: crate::DatabaseStore>(
store: &T,
) -> errors::CustomResult<
PooledConnection<'_, async_bb8_diesel::ConnectionManager<PgConnection>>,
crate::errors::StorageError,
> {
// If only OLAP is enabled get replica pool.
#[cfg(all(feature = "olap", not(feature = "oltp")))]
let pool = store.get_replica_pool();
// If either one of these are true we need to get master pool.
// 1. Only OLTP is enabled.
// 2. Both OLAP and OLTP is enabled.
// 3. Both OLAP and OLTP is disabled.
#[cfg(any(
all(not(feature = "olap"), feature = "oltp"),
all(feature = "olap", feature = "oltp"),
all(not(feature = "olap"), not(feature = "oltp"))
))]
let pool = store.get_master_pool();
pool.get()
.await
.change_context(crate::errors::StorageError::DatabaseConnectionError)
}
pub async fn pg_connection_write<T: crate::DatabaseStore>(
store: &T,
) -> errors::CustomResult<
PooledConnection<'_, async_bb8_diesel::ConnectionManager<PgConnection>>,
crate::errors::StorageError,
> {
// Since all writes should happen to master DB only choose master DB.
let pool = store.get_master_pool();
pool.get()
.await
.change_context(crate::errors::StorageError::DatabaseConnectionError)
}