How can I share mongoose models between 2 apps?

Question

I have 2 apps, each in a different folder and they need to share the same models.

I want to symlink the models folder from app A to a models folder in app B.

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Answer 1

One approach is to abstract the Schema into a plain JavaScript object, and then import that object to use to construct the models within your apps.

For instance, for a 'product' schema:

www/app1/ProductConfig.js

const ProductConfig = {
  name: String,
  cost: Number
}
module.exports = ProductConfig;

www/app1/ProductSchema.js

const mongoose = require('mongoose');
const Schema = mongoose.Schema;
const ProductConfig = require('./ProductConfig');

const Product = new Schema(Product);

module.exports = mongoose.model('Product', Product);

www/app2/ProductSchema.js

const mongoose = require('mongoose');
const Schema = mongoose.Schema;
const ProductConfig = require('../app1/ProductConfig');

const Product = new Schema(Product);

module.exports = mongoose.model('Product', Product);