import { mixed } from '../../interfaces' ; import { ClientBase , PoolClient } from 'pg' ; export const $$pgClient = 'pgClient' ; /**
 * Retrieves a Postgres client from a context, throwing an error if such a
 * client does not exist.
 */ export default function getPgClientFromContext ( context ) { if ( context == null || typeof context !== 'object' ) throw new Error ( 'Context must be an object.' ) ; const client = context [ $$pgClient ] ; if ( client == null ) throw new Error ( 'Postgres client does not exist on the context.' ) ; if ( ! ( client instanceof ClientBase ) ) throw new Error ( 'Postgres client on context is of the incorrect type.' ) ; return client as PoolClient ; }