bson-objectid
Construct ObjectIDs without the mongodb driver or bson module
Last updated 24 days ago by niftylettuce .
Apache-2.0 · Repository · Bugs · Original npm · Tarball · package.json
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BSON ObjectID  Build Status

This module allows you to create and parse ObjectIDs without a reference to the mongodb or bson modules.

The goal is to be 100% compatable with all bson's public API implementation (found here: https://github.com/mongodb/js-bson/blob/master/lib/objectid.js).

Install

$ npm install bson-objectid

Usage

var ObjectID = require("bson-objectid");

console.log(ObjectID());
console.log(ObjectID("54495ad94c934721ede76d90"));
console.log(ObjectID(1414093117));//time
console.log(ObjectID([ 84, 73, 90, 217, 76, 147, 71, 33, 237, 231, 109, 144 ]));
console.log(ObjectID(new Buffer([ 84, 73, 90, 217, 76, 147, 71, 33, 237, 231, 109, 144 ])));

ObjectID()
ObjectID(time)
ObjectID(hexString)
ObjectID(idString)
ObjectID(array)
ObjectID(buffer)

Creates a new immutable ObjectID instance based on the current system time.

Possible arguments:
time Constructs the instance based on the specified time (in seconds).
hexString Constructs the instance from a 24 character hex string.
idString Constructs the instance from a 12 byte string.
array Constructs the instance from an Array of 24 bytes.
buffer Constructs the instance from a 24 byte Buffer instance.

id

returns the 12 byte id string.

str

toHexString()

returns the ObjectID represented as a 24 character hex string.

equals(other)

returns true if the ObjectIDs represent the same underlying value. Otherwise false.

getTimestamp()

returns the generation Date (accurate up to the second) that this ObjectID was generated.

ObjectID.createFromTime(time)

Creates an ObjectID from a time (in seconds) Number, with the rest of the ObjectID zeroed out. Used for comparisons or sorting the ObjectID.

ObjectID.createFromHexString(hexString)

Creates an ObjectID from a 24 character hex string.

ObjectID.isValid(hexString)
ObjectID.isValid(ObjectID)

Checks if a value is a valid ObjectID or 24 character hex string.

THE NATIVE DOCUMENTATION ISN'T CLEAR ON THIS GUY!
See: http://mongodb.github.io/node-mongodb-native/api-bson-generated/objectid.html#objectid-isvalid

ObjectID.generate()
ObjectID.generate(time)

You can use this to generate a 24 character hex string without instantiating a ObjectID instance.

This diverges from bson's implementation which returns the 12 byte string.

returns a valid 24 character ObjectID hex string.

ObjectID.setMachineID(number)
ObjectID.setMachineID(string)

You can use this to set a custom machine-id. It should be a 6 character hex string or a 3 byte integer and will truncate all larger values.

ObjectID.getMachineID()

returns the machine-id as a 3 byte int.

Test

mocha

or

npm test

License

Apache v2.0

See LICENSE file.

Special callout to @feross for the is-buffer code used internally to avoid Buffer from being loaded in browserify environments.

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