getEnv.ts•1.23 kB
/**
* Copyright (C) 2025 by Fonoster Inc (https://fonoster.com)
* http://github.com/fonoster/fonoster
*
* This file is part of Fonoster
*
* Licensed under the MIT License (the "License");
* you may not use this file except in compliance with
* the License. You may obtain a copy of the License at
*
* https://opensource.org/licenses/MIT
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
function getEnv<T = string>(key: string, defaultValue?: T): T {
// Look for any environment variable that is a service-prefixed variable (e.g. APISERVER_LOGS_FORMAT)
const prefixedKey = Object.keys(process.env).find(
(envKey) => envKey !== key && envKey.endsWith(`_${key}`)
);
if (prefixedKey !== undefined && process.env[prefixedKey] !== undefined) {
return process.env[prefixedKey] as unknown as T;
}
return process.env[key] !== undefined
? (process.env[key] as unknown as T)
: (defaultValue as T);
}
export { getEnv };