(Bad) script to quickly find outdated Minecraft mods in your mod folder from Modrinth

modrinth-update-checker.js

const fs = require("fs")
const crypto = require("crypto")

const mods = fs.readdirSync(process.env.APPDATA + "\\.minecraft\\mods")
const projects = []
const found = {}
let i = 0
mods.forEach(async mod => {
	const hash = crypto.createHash("sha1")
	hash.update(fs.readFileSync(process.env.APPDATA + "\\.minecraft\\mods\\" + mod))
	const hashHex = hash.digest("hex")

	const res = await fetch("https://api.modrinth.com/v2/version_file/" + hashHex + "?algorithm=sha1", {
		headers: {
			"User-Agent": "TomatoCake Modrinth-Update-Checker"
		}
	})
	i++
	if (res.status == 404) return console.log("Mod " + mod + " (" + hashHex + ") ist nicht auf Modrinth")
	if (!res.ok) return console.log(res.status, await res.text())

	const json = await res.json()
	found[json.project_id] = {
		hash: hashHex,
		mod
	}
	projects.push(json.project_id)

	if (mods.length == i) {
		const projectsres = await fetch("https://api.modrinth.com/v2/projects?ids=" + JSON.stringify(projects), {
			headers: {
				"User-Agent": "TomatoCake Modrinth-Update-Checker"
			}
		})
		const projectsjson = await projectsres.json()

		const versions = []
		projectsjson.forEach(project => {
			project.versions.slice(project.versions.length - 3).forEach(version => versions.push(version))
		})
		const versionsres = await fetch("https://api.modrinth.com/v2/versions?ids=" + JSON.stringify(versions), {
			headers: {
				"User-Agent": "TomatoCake Modrinth-Update-Checker"
			}
		})
		const versionsjson = await versionsres.json()

		const filtered = versionsjson
			.filter(version => version.loaders.includes("fabric") && version.game_versions.includes("1.19.4") && version.files.find(f => f.filename.endsWith(".jar")).hashes.sha1 != found[version.project_id].hash)
		const unique = [...new Map(filtered.map(item => [item.project_id, item])).values()]
		unique.forEach(version => {
			console.log(
				"Version für " + found[version.project_id].mod + " (" + projectsjson.find(pro => pro.id == version.project_id).title + ") gefunden: " +
				version.files.find(f => f.filename.endsWith(".jar")).filename + " " + version.files.find(f => f.filename.endsWith(".jar")).url
			)
		})
	}
})