mod_downloader.ts

const APPDATA = Deno.env.get("APPDATA");
const VERSION = 2;

while (true) {
  const input = prompt("Search for a mod:");
  if (input === null) {
    continue;
  }

  console.log("Searching...");
  const response = await fetch(`https://api.modrinth.com/v${VERSION}/search?limit=1&query=${encodeURIComponent(input)}`);
  const mods = await response.json();

  if (mods.hits.length === 0) {
    console.log("Could not find that mod. Please try again.");
    continue;
  }

  const mod = mods.hits[0];

  while (true) {
    const answer = prompt(`Download ${mod.title}? (Y/N)`)?.toLowerCase();
    if (answer === "y") {
      console.log("Obtaining versions info...");
      const response2 = await fetch(`https://api.modrinth.com/v${VERSION}/project/${mod.project_id}/version?game_version=1.19&loaders=fabric`);
      const versions = await response2.json();

      console.log("Downloading...");
      const response3 = await fetch(versions[0].files[0].url);
      const binary = new Uint8Array(await response3.arrayBuffer());

      await Deno.writeFile(APPDATA + `/.minecraft/mods/${versions[0].files[0].filename}`, binary);
      console.log("Done.");
      break;
    } else if (answer === "n") {
      console.log("Okay. The mod will not be downloaded.");
      break;
    } else {
      continue;
    }
  }
}