@nestjs/config/dist/config.service.js

Nest - modern, fast, powerful node.js web framework (@config)

var __decorate = (this && this.__decorate) || function (decorators, target, key, desc) {
    var c = arguments.length, r = c < 3 ? target : desc === null ? desc = Object.getOwnPropertyDescriptor(target, key) : desc, d;
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};
var __metadata = (this && this.__metadata) || function (k, v) {
    if (typeof Reflect === "object" && typeof Reflect.metadata === "function") return Reflect.metadata(k, v);
};
var __param = (this && this.__param) || function (paramIndex, decorator) {
    return function (target, key) { decorator(target, key, paramIndex); }
};
import { Inject, Injectable, Optional } from '@nestjs/common';
import { isUndefined } from '@nestjs/common/utils/shared.utils.js';
import get from 'es-toolkit/compat/get';
import has from 'es-toolkit/compat/has';
import set from 'es-toolkit/compat/set';
import fs from 'fs';
import { Subject } from 'rxjs';
import { CONFIGURATION_TOKEN, VALIDATED_ENV_PROPNAME, } from './config.constants.js';
import { getDefaultParser } from './utils/index.js';
/**
 * @publicApi
 */
let ConfigService = class ConfigService {
    set isCacheEnabled(value) {
        this._isCacheEnabled = value;
    }
    get isCacheEnabled() {
        return this._isCacheEnabled;
    }
    set skipProcessEnv(value) {
        this._skipProcessEnv = value;
    }
    get skipProcessEnv() {
        return this._skipProcessEnv;
    }
    constructor(internalConfig = {}) {
        this.internalConfig = internalConfig;
        this.cache = {};
        this._changes$ = new Subject();
        this._skipProcessEnv = false;
        this._isCacheEnabled = false;
        this.envFilePaths = [];
        this.parser = getDefaultParser();
    }
    /**
     * Returns a stream of configuration changes.
     * Each event contains the attribute path, the old value and the new value.
     */
    get changes$() {
        return this._changes$.asObservable();
    }
    /**
     * Get a configuration value (either custom configuration or process environment variable)
     * based on property path (you can use dot notation to traverse nested object, e.g. "database.host").
     * It returns a default value if the key does not exist.
     * @param propertyPath
     * @param defaultValueOrOptions
     */
    get(propertyPath, defaultValueOrOptions, options) {
        const internalValue = this.getFromInternalConfig(propertyPath);
        if (!isUndefined(internalValue)) {
            return internalValue;
        }
        const validatedEnvValue = this.getFromValidatedEnv(propertyPath);
        if (!isUndefined(validatedEnvValue)) {
            return validatedEnvValue;
        }
        const defaultValue = this.isGetOptionsObject(defaultValueOrOptions) &&
            !options
            ? undefined
            : defaultValueOrOptions;
        if (!this._skipProcessEnv) {
            const processEnvValue = this.getFromProcessEnv(propertyPath, defaultValue);
            if (!isUndefined(processEnvValue)) {
                return processEnvValue;
            }
        }
        return defaultValue;
    }
    /**
     * Get a configuration value (either custom configuration or process environment variable)
     * based on property path (you can use dot notation to traverse nested object, e.g. "database.host").
     * It returns a default value if the key does not exist.
     * If the default value is undefined an exception will be thrown.
     * @param propertyPath
     * @param defaultValueOrOptions
     */
    getOrThrow(propertyPath, defaultValueOrOptions, options) {
        // @ts-expect-error Bypass method overloads
        const value = this.get(propertyPath, defaultValueOrOptions, options);
        if (isUndefined(value)) {
            throw new TypeError(`Configuration key "${propertyPath.toString()}" does not exist`);
        }
        return value;
    }
    /**
     * Sets a configuration value based on property path.
     * @param propertyPath
     * @param value
     */
    set(propertyPath, value) {
        const oldValue = this.get(propertyPath);
        set(this.internalConfig, propertyPath, value);
        if (typeof propertyPath === 'string') {
            process.env[propertyPath] = String(value);
            this.updateInterpolatedEnv(propertyPath, String(value));
        }
        if (this.isCacheEnabled) {
            this.setInCacheIfDefined(propertyPath, value);
        }
        this._changes$.next({
            path: propertyPath,
            oldValue,
            newValue: value,
        });
    }
    /**
     * Sets env file paths from `config.module.ts` to parse.
     * @param paths
     */
    setEnvFilePaths(paths) {
        this.envFilePaths = paths;
    }
    /**
     * Sets parser from `config.module.ts`.
     * @param parser
     */
    setParser(parser) {
        this.parser = parser;
    }
    getFromCache(propertyPath, defaultValue) {
        const cachedValue = get(this.cache, propertyPath);
        return isUndefined(cachedValue)
            ? defaultValue
            : cachedValue;
    }
    getFromValidatedEnv(propertyPath) {
        const validatedEnvValue = get(this.internalConfig[VALIDATED_ENV_PROPNAME], propertyPath);
        return validatedEnvValue;
    }
    getFromProcessEnv(propertyPath, defaultValue) {
        if (this.isCacheEnabled &&
            has(this.cache, propertyPath)) {
            const cachedValue = this.getFromCache(propertyPath, defaultValue);
            return !isUndefined(cachedValue) ? cachedValue : defaultValue;
        }
        const processValue = get(process.env, propertyPath);
        this.setInCacheIfDefined(propertyPath, processValue);
        return processValue;
    }
    getFromInternalConfig(propertyPath) {
        const internalValue = get(this.internalConfig, propertyPath);
        return internalValue;
    }
    setInCacheIfDefined(propertyPath, value) {
        if (typeof value === 'undefined') {
            return;
        }
        set(this.cache, propertyPath, value);
    }
    isGetOptionsObject(options) {
        return options && options?.infer && Object.keys(options).length === 1;
    }
    updateInterpolatedEnv(propertyPath, value) {
        let config = {};
        for (const envFilePath of this.envFilePaths) {
            if (fs.existsSync(envFilePath)) {
                config = Object.assign(this.parser(fs.readFileSync(envFilePath)), config);
            }
        }
        const escapedKey = propertyPath.replace(/[.*+?^${}()|[\]\\]/g, '\\$&');
        const regex = new RegExp(`\\$\\{${escapedKey}\\}|\\$${escapedKey}(?!\\w)`, 'g');
        for (const [k, v] of Object.entries(config)) {
            if (typeof v === 'string') {
                const updated = v.replace(regex, () => value);
                if (updated !== v) {
                    process.env[k] = updated;
                }
            }
        }
    }
};
ConfigService = __decorate([
    Injectable(),
    __param(0, Optional()),
    __param(0, Inject(CONFIGURATION_TOKEN)),
    __metadata("design:paramtypes", [Object])
], ConfigService);
export { ConfigService };