NodeJS application configuration files loader

• NodeJS, Typescript
• Config chaining (hierarchy)
• Multiple environments support, local overwrites
• JSON/JS configs, JS is to use environment variables
• Validation using class-validator library
• Configs are typed

Usage

Load config:

constconfigSource=newConfigFileChain(path.resolve(__dirname,'../config'),process.env.PROJECT_ENVasstring,);constconfigFactory=newConfigFactory(configSource);constserverConfig=awaitconfigFactory.create<ServerConfig>(ServerConfig);

Create your own config type:

exportclassExampleConfigextendsConfig{
@IsNotEmpty()publicvalue!: string;publicgetName(): string{return'example';}}