pg-cache/esm/pg.js

PostgreSQL connection pool LRU cache manager

import pg from 'pg';
import { getPgEnvOptions } from 'pg-env';
import { pgCache } from './lru';
const getDbString = (user, password, host, port, database) => `postgres://${user}:${password}@${host}:${port}/${database}`;
export const getPgPool = (pgConfig) => {
    const config = getPgEnvOptions(pgConfig);
    const { user, password, host, port, database, } = config;
    if (pgCache.has(database)) {
        const cached = pgCache.get(database);
        if (cached)
            return cached;
    }
    const connectionString = getDbString(user, password, host, port, database);
    const pgPool = new pg.Pool({ connectionString });
    pgCache.set(database, pgPool);
    return pgPool;
};