Is it bad practice to have a constructor function return a Promise?

Question

I\'m trying to create a constructor for a blogging platform and it has many async operations going on inside. These range from grabbing the posts from directories, parsing t

Answer 1

To avoid the separation of concerns, use a factory to create the object.

class Engine {
    constructor(data) {
        this.data = data;
    }

    static makeEngine(pathToData) {
        return new Promise((resolve, reject) => {
            getData(pathToData).then(data => {
              resolve(new Engine(data))
            }).catch(reject);
        });
    }
}