@ticatec/common-express-server/lib/AppConf.js

A comprehensive TypeScript library providing common classes, controllers, and middleware for building scalable Express.js applications with multi-tenant support.

"use strict";
Object.defineProperty(exports, "__esModule", { value: true });
/**
 * Application configuration singleton class
 */
class AppConf {
    /**
     * Private constructor for singleton pattern
     * @param conf Configuration object
     */
    constructor(conf) {
        this.conf = conf;
    }
    /**
     * Gets the singleton instance
     * @returns AppConf instance or null if not initialized
     */
    static getInstance() {
        return AppConf.instance;
    }
    /**
     * Initializes the configuration singleton
     * @param config Configuration object
     * @returns AppConf instance
     */
    static init(config) {
        console.debug('Initializing configuration center', config);
        if (AppConf.instance == null) {
            AppConf.instance = new AppConf(config);
        }
        return AppConf.instance;
    }
    /**
     * Gets configuration value by key (supports dot notation)
     * @param key Configuration key (can use dot notation like 'server.port')
     * @returns Configuration value or undefined if not found
     */
    get(key) {
        if (!key)
            return undefined;
        const keys = key.split('.');
        let result = this.conf;
        for (const k of keys) {
            if (result && typeof result === 'object' && k in result) {
                result = result[k];
            }
            else {
                return undefined;
            }
        }
        return result;
    }
}
/** Singleton instance */
AppConf.instance = null;
exports.default = AppConf;
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