@nestjs/config
Version:
Nest - modern, fast, powerful node.js web framework (@config)
210 lines (209 loc) • 9.51 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 __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;
if (typeof Reflect === "object" && typeof Reflect.decorate === "function") r = Reflect.decorate(decorators, target, key, desc);
else for (var i = decorators.length - 1; i >= 0; i--) if (d = decorators[i]) r = (c < 3 ? d(r) : c > 3 ? d(target, key, r) : d(target, key)) || r;
return c > 3 && r && Object.defineProperty(target, key, r), r;
};
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;
};
var ConfigModule_1;
Object.defineProperty(exports, "__esModule", { value: true });
exports.ConfigModule = void 0;
const common_1 = require("@nestjs/common");
const shared_utils_1 = require("@nestjs/common/utils/shared.utils");
const dotenv = __importStar(require("dotenv"));
const dotenv_expand_1 = require("dotenv-expand");
const fs = __importStar(require("fs"));
const path_1 = require("path");
const config_host_module_1 = require("./config-host.module");
const config_constants_1 = require("./config.constants");
const config_service_1 = require("./config.service");
const create_config_factory_util_1 = require("./utils/create-config-factory.util");
const get_registration_token_util_1 = require("./utils/get-registration-token.util");
const merge_configs_util_1 = require("./utils/merge-configs.util");
let ConfigModule = ConfigModule_1 = class ConfigModule {
/**
* This promise resolves when "dotenv" completes loading environment variables.
* When "ignoreEnvFile" is set to true, then it will resolve immediately after the
* "ConfigModule#forRoot" method is called.
*/
static get envVariablesLoaded() {
return this._envVariablesLoaded;
}
/**
* Loads process environment variables depending on the "ignoreEnvFile" flag and "envFilePath" value.
* Also, registers custom configurations globally.
* @param options
*/
static forRoot(options = {}) {
let validatedEnvConfig = undefined;
let config = options.ignoreEnvFile ? {} : this.loadEnvFile(options);
if (!options.ignoreEnvVars) {
config = Object.assign(Object.assign({}, config), process.env);
}
if (options.validate) {
const validatedConfig = options.validate(config);
validatedEnvConfig = validatedConfig;
this.assignVariablesToProcess(validatedConfig);
}
else if (options.validationSchema) {
const validationOptions = this.getSchemaValidationOptions(options);
const { error, value: validatedConfig } = options.validationSchema.validate(config, validationOptions);
if (error) {
throw new Error(`Config validation error: ${error.message}`);
}
validatedEnvConfig = validatedConfig;
this.assignVariablesToProcess(validatedConfig);
}
else {
this.assignVariablesToProcess(config);
}
const isConfigToLoad = options.load && options.load.length;
const providers = (options.load || [])
.map(factory => (0, create_config_factory_util_1.createConfigProvider)(factory))
.filter(item => item);
const configProviderTokens = providers.map(item => item.provide);
const configServiceProvider = {
provide: config_service_1.ConfigService,
useFactory: (configService) => {
if (options.cache) {
configService.isCacheEnabled = true;
}
return configService;
},
inject: [config_constants_1.CONFIGURATION_SERVICE_TOKEN, ...configProviderTokens],
};
providers.push(configServiceProvider);
if (validatedEnvConfig) {
const validatedEnvConfigLoader = {
provide: config_constants_1.VALIDATED_ENV_LOADER,
useFactory: (host) => {
host[config_constants_1.VALIDATED_ENV_PROPNAME] = validatedEnvConfig;
},
inject: [config_constants_1.CONFIGURATION_TOKEN],
};
providers.push(validatedEnvConfigLoader);
}
this.environmentVariablesLoadedSignal();
return {
module: ConfigModule_1,
global: options.isGlobal,
providers: isConfigToLoad
? [
...providers,
{
provide: config_constants_1.CONFIGURATION_LOADER,
useFactory: (host, ...configurations) => {
configurations.forEach((item, index) => this.mergePartial(host, item, providers[index]));
},
inject: [config_constants_1.CONFIGURATION_TOKEN, ...configProviderTokens],
},
]
: providers,
exports: [config_service_1.ConfigService, ...configProviderTokens],
};
}
/**
* Registers configuration object (partial registration).
* @param config
*/
static forFeature(config) {
const configProvider = (0, create_config_factory_util_1.createConfigProvider)(config);
const serviceProvider = {
provide: config_service_1.ConfigService,
useFactory: (configService) => configService,
inject: [config_constants_1.CONFIGURATION_SERVICE_TOKEN, configProvider.provide],
};
return {
module: ConfigModule_1,
providers: [
configProvider,
serviceProvider,
{
provide: config_constants_1.CONFIGURATION_LOADER,
useFactory: (host, partialConfig) => {
this.mergePartial(host, partialConfig, configProvider);
},
inject: [config_constants_1.CONFIGURATION_TOKEN, configProvider.provide],
},
],
exports: [config_service_1.ConfigService, configProvider.provide],
};
}
static loadEnvFile(options) {
const envFilePaths = Array.isArray(options.envFilePath)
? options.envFilePath
: [options.envFilePath || (0, path_1.resolve)(process.cwd(), '.env')];
let config = {};
for (const envFilePath of envFilePaths) {
if (fs.existsSync(envFilePath)) {
config = Object.assign(dotenv.parse(fs.readFileSync(envFilePath)), config);
if (options.expandVariables) {
const expandOptions = typeof options.expandVariables === 'object' ? options.expandVariables : {};
config = (0, dotenv_expand_1.expand)(Object.assign(Object.assign({}, expandOptions), { parsed: config })).parsed || config;
}
}
}
return config;
}
static assignVariablesToProcess(config) {
if (!(0, shared_utils_1.isObject)(config)) {
return;
}
const keys = Object.keys(config).filter(key => !(key in process.env));
keys.forEach(key => (process.env[key] = config[key]));
}
static mergePartial(host, item, provider) {
const factoryRef = provider.useFactory;
const token = (0, get_registration_token_util_1.getRegistrationToken)(factoryRef);
(0, merge_configs_util_1.mergeConfigObject)(host, item, token);
}
static getSchemaValidationOptions(options) {
if (options.validationOptions) {
if (typeof options.validationOptions.allowUnknown === 'undefined') {
options.validationOptions.allowUnknown = true;
}
return options.validationOptions;
}
return {
abortEarly: false,
allowUnknown: true,
};
}
};
ConfigModule._envVariablesLoaded = new Promise(resolve => (ConfigModule_1.environmentVariablesLoadedSignal = resolve));
ConfigModule = ConfigModule_1 = __decorate([
(0, common_1.Module)({
imports: [config_host_module_1.ConfigHostModule],
providers: [
{
provide: config_service_1.ConfigService,
useExisting: config_constants_1.CONFIGURATION_SERVICE_TOKEN,
},
],
exports: [config_host_module_1.ConfigHostModule, config_service_1.ConfigService],
})
], ConfigModule);
exports.ConfigModule = ConfigModule;