cqrs-command-example.js

// the base command class or interface
class Command {
  handle() {
  }
}

class CreateUserCommand extends Command {
  constructor(user) {
    super();
    this.user = user;
  }
  
  handle() {
    // create the user in the db
  }
}
const createUser = new CreateUserCommand(user);

// dispatch the command - this calls the handle() method
dispatch(createUser);
// or you could use a CommandHandler class
commandHandler.handle(createUser);