uuid-mongodb

This is package is a fork of the uuid-mongodb package created by Carmine DiMascio, Benjamin Dobell & David Pfeffer with some minor contributions from Erich Kuba of Cloudize Limited. The purpose of the fork is to provide a package that aligns with the release cadence and dependencies of the API Games Framework.

Install

$ npm i @cloudize/uuid-mongodb 

Usage

Please see https://github.com/cdimascio/uuid-mongodb for usage notes.

Authors or Acknowledgments

• Carmine DiMascio
• Benjamin Dobell
• David Pfeffer
• Erich Kuba

// Create a v1 binary UUID
const mUUID1 = MUUID.v1();

// Create a v4 binary UUID
const mUUID4 = MUUID.v4();

// Print a string representation of a binary UUID
mUUID1.toString()

// Create a binary UUID from a valid uuid string
const mUUID2 = MUUID.from('393967e0-8de1-11e8-9eb6-529269fb1459')

// Create a binary UUID from a MongoDb Binary
// This is useful to get MUUIDs helpful toString() method
const mUUID3 = MUUID.from(/** MongoDb Binary of SUBTYPE_UUID */)

Formatting

UUIDs may be formatted using the following options:

Format | Description | Example -- | -- | -- N | 32 digits | 00000000000000000000000000000000 D | 32 digits separated by hyphens | 00000000-0000-0000-0000-000000000000 B | 32 digits separated by hyphens, enclosed in braces | {00000000-0000-0000-0000-000000000000} P | 32 digits separated by hyphens, enclosed in parentheses | (00000000-0000-0000-0000-000000000000)

example:

const mUUID4 = MUUID.v4();
mUUID1.toString(); // equivalent to `D` separated by hyphens
mUUID1.toString('P'); // enclosed in parens, separated by hypens
mUUID1.toString('B'); // enclosed in braces, separated by hyphens
mUUID1.toString('N'); // 32 digits

Modes

uuid-mongodb offers two modes:

• canonical (default) - A string format that emphasizes type preservation at the expense of readability and interoperability.
• relaxed - A string format that emphasizes readability and interoperability at the expense of type preservation.

The mode is set globally as such:

const mUUID = MUUID.mode('relaxed'); // use relaxed mode

Mode only impacts how JSON.stringify(...) represents a UUID:

e.g. JSON.stringify(mUUID.v1()) outputs the following:

"DEol4JenEeqVKusA+dzMMA==" // when in 'canonical' mode
"1ac34980-97a7-11ea-8bab-b5327b548666" // when in 'relaxed' mode

Examples

Query using binary UUIDs

const uuid = MUUID.from('393967e0-8de1-11e8-9eb6-529269fb1459');
return collection.then(c =>
  c.findOne({
    _id: uuid,
  })
);

Work with binary UUIDs returned in query results

return collection
  .then(c => c.findOne({ _id: uuid }))
  .then(doc => {
    const uuid = MUUID.from(doc._id).toString();
    // do stuff
  });

Examples (with source code)

Native Node MongoDB Driver example

• examples/ex1-mongodb.js

  snippet:

  const insertResult = await collection.insertOne({
    _id: MUUID.v1(),
    name: 'carmine',
  });

Mongoose example

• examples/ex2-mongoose.js

  snippet:

  const kittySchema = new mongoose.Schema({
    _id: {
      type: 'object',
      value: { type: 'Buffer' },
      default: () => MUUID.v1(),
    },
    title: String,
  });

• examples/ex3-mongoose.js

  snippet:

  // Define a simple schema
  const kittySchema = new mongoose.Schema({
    _id: {
      type: 'object',
      value: { type: 'Buffer' },
      default: () => MUUID.v1(),
    },
    title: String,
  });
    
  // no need for auto getter for _id will add a virtual later
  kittySchema.set('id', false);
    
  // virtual getter for custom _id
  kittySchema
    .virtual('id')
    .get(function() {
      return MUUID.from(this._id).toString();
    })
    .set(function(val) {
      this._id = MUUID.from(val);
    });

• examples/ex4-mongoose.js

    const uuid = MUUID.v4();

    // save record and wait for it to commit
    await new Data({ uuid }).save();

    // retrieve the record
    const result = await Data.findOne({ uuid });

Notes

Currently supports UUID v1 and v4

License

This project is licensed under the MIT License