nest-simple-config
Version:
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.
65 lines (64 loc) • 2.55 kB
JavaScript
;
var __createBinding = (this && this.__createBinding) || (Object.create ? (function(o, m, k, k2) {
if (k2 === undefined) k2 = k;
var desc = Object.getOwnPropertyDescriptor(m, k);
if (!desc || ("get" in desc ? !m.__esModule : desc.writable || desc.configurable)) {
desc = { enumerable: true, get: function() { return m[k]; } };
}
Object.defineProperty(o, k2, desc);
}) : (function(o, m, k, k2) {
if (k2 === undefined) k2 = k;
o[k2] = m[k];
}));
var __setModuleDefault = (this && this.__setModuleDefault) || (Object.create ? (function(o, v) {
Object.defineProperty(o, "default", { enumerable: true, value: v });
}) : function(o, v) {
o["default"] = v;
});
var __importStar = (this && this.__importStar) || function (mod) {
if (mod && mod.__esModule) return mod;
var result = {};
if (mod != null) for (var k in mod) if (k !== "default" && Object.prototype.hasOwnProperty.call(mod, k)) __createBinding(result, mod, k);
__setModuleDefault(result, mod);
return result;
};
Object.defineProperty(exports, "__esModule", { value: true });
exports.EnvConfigurationProvider = void 0;
const __1 = require("..");
const config_provider_abstract_1 = require("./config-provider.abstract");
const flat_1 = require("flat");
const _ = __importStar(require("lodash"));
class EnvConfigurationProvider extends config_provider_abstract_1.ConfigurationProvider {
constructor(options) {
super();
this.options = options;
}
loadConfigObject() {
const _options = _.merge(new __1.DefaultEnvOptions(), (0, __1.definedProps)(this.options));
const noneEmptyEnv = Object.fromEntries(Object.entries(process.env)
.filter(([, value]) => !_.isEmpty(value))
.map(([key, value]) => {
let val = undefined;
try {
if (value) {
val = JSON.parse(value);
}
}
catch {
//
}
return [key, val ? val : value];
}));
const inner = (0, flat_1.unflatten)(noneEmptyEnv, {
overwrite: true,
transformKey: (key) => {
const reg = new RegExp(`${_options.delimiter}`, "g");
return key.replace(reg, ".");
},
});
const envConf_all = (0, flat_1.unflatten)(inner, { overwrite: true });
const envConf = envConf_all[_options.prefix];
return envConf;
}
}
exports.EnvConfigurationProvider = EnvConfigurationProvider;