mongoomig

Description

Yet another mongoose migration tool

Key features

• Async/await is default concept
• Mongoose 4.11 support without deprecation warning
• Could be configured through command line arguments, environment variables or config file
• No dependencies, just one peer dependency - mongoose
• Typescript support

Installation

Install with npm:

$ npm install mongoomig

Usage

1. Create a migration. The following command creates a new migration file ./migrations/${date}-first-migration.js

   $ mongoomig create first-migration

2. Write migration code

   'use strict';
    
   const User = require('../models/User');
    
   module.exports = {
     async up() {
       await User.create({ name: 'test-user' });
     },
    
     async down() {
       await User.deleteOne({ name: 'test-user' });
     },
   };

3. Execute the migration

   $ mongoomig up

4. (Optional) Add the migration command to package.json script:

"scripts": {
  "start": "node index.js",
  "migrate": "mongoomig up"
}

Also, you can check the example.

With Typescript

You can compile your modules before migration, or use ts-node instead:

npm install -D ts-node
mongomig up --require ts-node/register

Options

Command line

Usage: mongoomig [options] <command>
 
Commands:
  up [name]       Migrate up till given migration
  down [name]     Migrate down till given migration
  create <name>   Create a new migration
  list            Show migrations which are applied
 
Options:
  -c, --config=<path>      Load config from json or js file, default to
                             ./migrations/config.js
  -u, --url=<url>          Mongodb connection string
  --collection=<name>      Migrations collection, defaults to migrations
  -p, --path=<path>        Where your migrations are stored, defaults to
                             ./migrations
  --reconnectInterval=<ms> Try to reconnect every <ms>, default 300
  --reconnectTries=<count> Try to reconnect <count> times, default 100
  -r, --require=<module>   Require a module before loading migrations
  -s, --silent             Silent mode, defaults to false
  -d, --debug              Debug mode, defaults to false

Environment variables

Also, you can set a such options through environment variable. Just set MONGOOMIG_<OPTION_NAME_UPPERCASED>. For example, the MONGOOMIG_COLLECTION environment variable is equal to the collection option.

Additionally, mongoomig tries to load the url option from the MONGO_URL environment variable if another ways are not available.

Config file

Another way is to specify options inside a config. By default, this package tries to read a config from migrations/config.js. Here is the example of such a config:

'use strict';
 
module.exports = {
  url: 'mongodb://localhost/tiny-blog',
};

API

If you would like to run migrations from your code instead of command line, you can use API.

const Migration = require('mongoomig/lib/Migration');
 
const migration = new Migration({ path, url });
await migration.connect();
await migration.up();

A good example is index.js of this package.

License

Licensed under MIT.