Post new GitHub stars to a Slack channel

from clickruntime import on_event, credentials, http, verify, notify

CHANNEL = "#community"
MIN_FOLLOWERS = 0

def gh(method, path, **kw):
    resp = http.request(method, f"https://api.github.com{path}", headers={
        "Authorization": f"Bearer {credentials.connection('github', 'work')}",
        "Accept": "application/vnd.github+json"}, **kw)
    resp.raise_for_status()
    return resp.json() if resp.content else None

@on_event
def handle(event):
    if not verify.github(event.body, event.header("X-Hub-Signature-256"), credentials.secret("GITHUB_WEBHOOK_SECRET")):
        return {"ignored": "bad signature"}
    body = event.json
    if event.header("X-GitHub-Event") != "star" or body.get("action") != "created":
        return {"ignored": True}
    login, repo = body["sender"]["login"], body["repository"]
    p = gh("GET", f"/users/{login}")
    if p.get("followers", 0) < MIN_FOLLOWERS:
        return {"ignored": "below follower threshold"}
    who = f"{p.get('name') or login} ({login})"
    extra = " · ".join(x for x in [p.get("company"), f"{p.get('followers', 0):,} followers"] if x)
    notify.slack(f"⭐ {repo['full_name']} now has {repo['stargazers_count']:,} stars\n{who} · {extra}\n{p['html_url']}", channel=CHANNEL)
    return {"login": login}