deathcap

Tracks down when a Minecraft account was created.

How it works

Mojang has an API endpoint for usernames:

https://api.mojang.com/users/profiles/minecraft/<name>?at=<timestamp>

It can be used to find the UUID of an account, by username it used at the given time.
It returns either 200 OK or 204 No Content – indicating that the username was not in use at the time.

Complicates development-code distribution: When a user checks out a new revision of the source code from git, the changes won't immediately have any effect, unlike (most) changes from non-transpiled modules. Instead they have to be sure to run npm run-script prepublish to recompile.

Actual user conversation from chatroom (lightly edited for relevance):

developer Jan 24 15:33 update, I fixed that recently
user Jan 24 15:33 ooooohhh, ummm
  the current [module] has that update, or do I need a special fork version from you?
other-developer Jan 24 15:35 It was merged yeah

	{
	"name": "fish.pufferfish.raw",
	"id": 206,
	"icon": "fish_raw_puffer_fish",
	"use_animation": "eat",
	"use_duration": 32,
	"max_damage": 0,
	"stacked_by_data": true,

	"food": {

	var net = require("net");

	function makeBuf(server, port) {
	var bufSize = 7 + server.length;
	var buffer = new Buffer(bufSize);

	buffer.writeUInt8(bufSize - 1, 0);
	buffer.writeUInt8(0, 1);
	buffer.writeUInt8(5, 2);
	buffer.writeUInt8(server.length, 3);

	var net = require("net");

	function makeBuf(server, port) {
	var bufSize = 7 + server.length;
	var buffer = new Buffer(bufSize);

	buffer.writeUInt8(bufSize - 1, 0);
	buffer.writeUInt8(0, 1);
	buffer.writeUInt8(5, 2);
	buffer.writeUInt8(server.length, 3);