@opengis/fastify-table/dist/server/plugins/pg/funcs/pool.js

core-plugins

import pg from "pg";
import logger from "../../../plugins/logger/getLogger.js";
const { types } = pg;
types.setTypeParser(1082, (stringValue) => stringValue);
types.setTypeParser(1114, (stringValue) => stringValue);
import pgClients from "../pgClients.js";
import init from "./init.js";
import config from "../../../../config.js";
config.ready = config.ready || {};
export const Pools = {};
export default (param = {}) => {
    if (!config.pg)
        return null;
    const { name = param.database || "client" } = param;
    // return inited client
    if (pgClients[name]?.tlist)
        return pgClients[name];
    // return non-inited client
    if (Pools[name])
        return Pools[name];
    const pool = new pg.Pool(param);
    pool.on("release", () => {
        if (config.trace) {
            console.log("PG client released", param.database);
        }
    });
    pool.on("error", (err) => {
        console.warn("⚠️ Unexpected error on idle client", param.database);
        config.ready[`pg:${param.database}`] = false;
        logger.file("pg", {
            error: err.toString(),
            database: param.database,
        });
        if (config.trace) {
            console.warn("⚠️ Unexpected error on idle client details:", err.toString(), err.stack);
        }
    });
    pool.on("connect", () => {
        // skip auto drops and reconnects handled by pg internally
        if (!config.ready[`pg:${param.database}`]) {
            logger.file("pg", {
                message: "client connected",
                database: param.database,
            });
            config.ready[`pg:${param.database}`] = true;
        }
        if (config.trace) {
            console.log("PG client connected", param.database);
        }
        // handle delayed connect to database?
        if (pgClients[name] && !pgClients[name]?.tlist) {
            init(Pools[name]);
        }
        Pools[name] = pool;
    });
    if (config.trace) {
        pool.on("remove", () => {
            console.log("PG Client removed from the pool.", param.database);
        });
    }
    return pool;
};