@buka/nestjs-config/dist/esm/src/config-loader/json-file-loader.js

An easy to use nestjs config module

import { Logger } from '@nestjs/common';
import { readFile } from 'fs/promises';
import { fsExist } from '../utils/fs-exists.js';
export function jsonFileLoader(filepath, encoding = 'utf-8') {
    return async (options) => {
        if (!await fsExist(filepath)) {
            if (!options.suppressWarnings) {
                Logger.warn(`env file not found: ${filepath}`, '@buka/nestjs-config');
            }
            return {};
        }
        const content = await readFile(filepath);
        return JSON.parse(content.toString(encoding));
    };
}