Mongoose-As-A-Validator (MAAV)

Have you ever used Mongoose's schema validation and thought, hey this is way better than every schema validation library, why can't I just use it for validation? Technically you could do it, but you would end up with collections for every model you made and it would be a big mess.

Enter MAAV. It uses the existing Mongoose schemas and validation logic without involving the database layers that otherwise come with Mongoose.

Because this module uses mongoose, it has a peer-dependency of [email protected] or higher. If you do not install mongoose, this won't work.

This project is still in a WIP state, which means its API is not yet stable. It may change drastically in the future.

Getting Started

Installation

npm i maav

Usage

const { Validator, Schema } = require('maav');

const ValidNameSchema = new Schema({
  name: {
    type: String,
    required: true,
    validate: /[^\d]/
  }
});

const SubmitNameRequest = new Validator(ValidNameSchema);

router.post('/submitName', async (req, res) => {
  let nameSubmission = new SubmitNameRequest(req.body);
  try {
    await nameSubmission.validate();
  } catch (e) {
    return res.status(400).send({
      error: e.firstError()
    });
  }
  
  // Now we can be sure nameSubmission is valid
  // If you need a pure JS verison of the valid object
  // we can call nameSubmission.toObject()
});

Schema design / validation rules

Just reference Mongoose's own validation documentation

FAQ

• Is this officially supported by mongoose?
  • LOL no, please don't bug @Automattic for anything you encounter in this library unless you can reproduce within a purely mongoose environment. He does really good work, seriously. This module would not be possible if mongoose didn't exist. Don't be a jerk.
• Can I do X with this like I can in mongoose?
  • Just try it, see if it works. If not, and you really want to, you could always open an issue to ask about it. If it's a good idea maybe I'll work on it. Also, I will accept pull requests which are not stupid ideas either.