nest-simple-config/dist/simple-config.service.js

A powerful and flexible configuration management library for NestJS applications. Supports JSON, YAML file loading, environment variable overrides, immutable configurations, and type-safe configuration access with dependency injection.

"use strict";
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    if (k2 === undefined) k2 = k;
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    o["default"] = v;
});
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Object.defineProperty(exports, "__esModule", { value: true });
exports.Configuration = void 0;
const common_1 = require("@nestjs/common");
const _1 = require(".");
const flat_1 = require("flat");
const _ = __importStar(require("lodash"));
let Configuration = exports.Configuration = class Configuration {
    constructor(optional, configObject) {
        this.optional = optional;
        this.configObject = configObject;
        // 一次性處理：複製並凍結
        this.immutableConfig = this.makeImmutable(this.configObject);
    }
    makeImmutable(obj) {
        // 使用 structuredClone (Node.js 17+) 或 lodash cloneDeep
        const cloned = typeof structuredClone !== 'undefined'
            ? structuredClone(obj)
            : _.cloneDeep(obj);
        return this.deepFreeze(cloned);
    }
    deepFreeze(obj) {
        if (obj && typeof obj === 'object') {
            Object.values(obj).forEach(value => this.deepFreeze(value));
            Object.freeze(obj);
        }
        return obj;
    }
    // get<T = any>(key: string): T {
    //     const k = key.replace(this.optional.keyPathDelimiter as string, '.');
    //     const section = _.get(this.configObject, k) ;
    //     return _.cloneDeep(section) as T;
    // }
    get(key) {
        const k = key.replace(this.optional.keyPathDelimiter, '.');
        const section = _.get(this.immutableConfig, k);
        // 直接返回，因為已經是不可變的
        return section;
    }
    getEntries() {
        return (0, flat_1.flatten)(this.configObject, { delimiter: this.optional.keyPathDelimiter });
    }
};
exports.Configuration = Configuration = __decorate([
    (0, common_1.Injectable)({ scope: common_1.Scope.DEFAULT }),
    __param(0, (0, common_1.Inject)(_1.CONFIG_OPTIONAL)),
    __param(1, (0, common_1.Inject)(_1.CONFIG_OBJECT)),
    __metadata("design:paramtypes", [Object, Object])
], Configuration);