Get Slack and Discord alerts for new npm package releases

from slack_sdk import WebClient
from clickruntime import on_trigger, state_initializer, credentials, http, state, report_fetched

PACKAGES = ["react", "next", "express"]
DISCORD_CHANNEL_ID = "your-discord-channel-id"

def latest_versions():
    return {p: http.get(f"https://registry.npmjs.org/{p}/latest").json()["version"] for p in PACKAGES}

@state_initializer
def init():
    state.set("versions", latest_versions())

@on_trigger
def run(event):
    known = state.get("versions") or {}
    latest = latest_versions()
    changed = [p for p, v in latest.items() if known.get(p) != v]
    report_fetched(len(changed))
    if not changed:
        return {"summary": "No new releases"}
    text = "\n".join(f"New release: {p} {known.get(p, 'new')} -> {latest[p]} https://www.npmjs.com/package/{p}" for p in changed)
    WebClient(token=credentials.connection("slack", "work")).chat_postMessage(channel="#releases", text=text)
    http.post(f"https://discord.com/api/v10/channels/{DISCORD_CHANNEL_ID}/messages",
              headers={"Authorization": f"Bot {credentials.secret('DISCORD_BOT_TOKEN')}"}, json={"content": text[:2000]})
    state.set("versions", latest)
    return {"summary": f"{len(changed)} new releases"}