initial version

.gitignore

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+node_modules
+.DS_Store

README.md

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+# uuid-mongodb
+
+Generates and parses [BSON UUIDs](https://docs.mongodb.com/manual/reference/method/UUID/) for use with MongoDB.
+
+Inspired by [@srcagency's](https://github.com/srcagency) [mongo-uuid](https://github.com/srcagency/mongo-uuid)
+
+## Usage
+
+```
+# 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')
+```
+
+## Notes
+
+Currently support UUID v1 and v4
+
+## License
+
+MIT

lib/index.js

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+const { Binary } = require('mongodb');
+import * as uuidv1 from 'uuid/v1';
+import * as uuidv4 from 'uuid/v4';
+
+export const MUUID = {
+  v1() {
+    return generateUUID(null, 1);
+  },
+
+  v4() {
+    return generateUUID(null, 4);
+  },
+
+  from(uuid) {
+    return generateUUID(uuid);
+  },
+};
+
+function generateUUID(uuid = undefined, v = 1) {
+  if (v <= 0 || v > 4 || v === 2 || v === 3)
+    throw Error('unsupported uuid version');
+
+  let uuidv = uuidv1;
+  if (v === 4) uuidv = uuidv4;
+
+  let muuid;
+  if (uuid) {
+    const normalized = normalize(uuid);
+    if (normalized === false) throw new Error('Invalid hex string');
+    muuid = new Binary(Buffer.from(normalized, 'hex'), Binary.SUBTYPE_UUID);
+  } else {
+    const uuid = uuidv(null, new Buffer(16));
+    muuid = Binary(uuid, Binary.SUBTYPE_UUID);
+  }
+
+  muuid.toString = function() {
+    const buffer = this.buffer;
+
+    return [
+      buffer.toString('hex', 0, 4),
+      buffer.toString('hex', 4, 6),
+      buffer.toString('hex', 6, 8),
+      buffer.toString('hex', 8, 10),
+      buffer.toString('hex', 10, 16),
+    ].join('-');
+  }.bind(muuid);
+
+  return muuid;
+}
+
+function normalize(string) {
+  if (typeof string !== 'string') return false;
+
+  const stripped = string.replace(/-/g, '');
+
+  if (stripped.length !== 32 || !stripped.match(/^[a-fA-F0-9]+$/)) return false;
+
+  return stripped;
+}

package.json

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+{
+  "name": "uuid-mongodb",
+  "version": "0.8.0",
+  "description": "",
+  "main": "index.js",
+  "scripts": {
+    "test": "echo \"Error: no test specified\" && exit 1"
+  },
+  "repository": {
+    "type": "git",
+    "url": "git+https://github.com/cdimascio/uuid-mongodb.git"
+  },
+  "keywords": [
+    "uuid",
+    "mongodb"
+  ],
+  "author": "Carmine DiMascio <cdimascio@gmail.com>",
+  "license": "MIT",
+  "bugs": {
+    "url": "https://github.com/cdimascio/uuid-mongodb/issues"
+  },
+  "homepage": "https://github.com/cdimascio/uuid-mongodb#readme",
+  "dependencies": {
+    "uuid": "^3.3.2"
+  },
+  "peerDependencies": {
+    "mongodb": "^3.1.1"
+  }
+}