Mongoose browser implementation

[gilles-yvetot]

Do you want to request a feature or report a bug?
Feature -> docs

Problem

@vkarpov15 I am not sure to understand the mongoose browser documentation. I have been a user of mongoose for many years now (❤️ ) but I am struggling to understand it.

• You said there is no pre-build library of mongoose browser but I am still seeing one when installing mongoose on my project
• I am using mongoose to define my schema and models in my library. This project is later consumed by all my backends projects. I'd love to be able to create a different build from the same schemas I have defined. But does it mean I need to re-write all of them and replacing const mongoose = require('mongoose') with const mongoose = require('mongoose/browser')? I am using ES6 everywhere

What are the versions of Node.js, Mongoose and MongoDB you are using? Note that "latest" is not a version.
Node 12
Mongoose 5.9.25
Mongo 4.2

[vkarpov15]

As long as you use Webpack and your webpack config has target: 'web', then you should be able to use const mongoose = require('mongoose') in your browser code.

Thanks for pointing out that we already have a pre-built bundle, this section of the docs is out of date after #8435

[vkarpov15]

I found a bit of a bug in the UMD build: the below script would fail because older versions of Babel didn't support extends Error very well. I upgraded Babel and can confirm the below script works with a basic webpack config.

import mongoose from 'mongoose';

    // Mongoose's browser library does **not** have models. It only supports
    // schemas and documents. The primary use case is validating documents
    // against Mongoose schemas.
    const doc = new mongoose.Document({}, new mongoose.Schema({
      name: { type: String, required: true }
    }));
    // Prints an error because `name` is required.
    console.log(doc.validateSync());

[vkarpov15]

Just to clarify, you can still use import mongoose from 'mongoose/browser';, but then you're using your own Webpack config to compile Mongoose.

[gilles-yvetot]

@vkarpov15 I don't know if I should open a new ticket or not.
I have tried the version 5.10.3 and everything is working fine with the recommended webpack config. I do have a warning for mongodb-client-encryption not being found

Module not found: Error: Can't resolve 'mongodb-client-encryption' in '/Users/gilles/Documents/omni/app/packages/extension/node_modules/mongodb/lib/operations'
 @ ./node_modules/mongodb/lib/operations/connect.js
 @ ./node_modules/mongodb/lib/mongo_client.js
 @ ./node_modules/mongodb/index.js
 @ ./node_modules/mongoose/lib/index.js
 @ ./node_modules/mongoose/index.js

[vkarpov15]

@gilles-yvetot are you using import mongoose from 'mongoose/browser' or import mongoose from 'mongoose'?

You should be safe to ignore that warning or stub out mongodb-client-encryption using webpack externals.