Set up a Twitch Drops campaign and integrate the drops callback for a game

Steps

1. Register your game on Twitch as a category and obtain Twitch developer credentials; navigate to the Twitch Developer Console and ensure your organization is verified with Twitch (required for Drops).
2. In the Drops Campaign manager (accessible via the Twitch developer or partnership dashboard), create a campaign: set the game category, time window, and required watch minutes per drop.
3. Define Drop Benefit items (what players receive) and map them to Twitch Benefit IDs; provide a fulfillment webhook URL — Twitch will POST to this URL when a drop is claimed.
4. Implement the fulfillment webhook endpoint: Twitch sends a JSON payload with the Twitch user ID, benefit ID, and entitlement ID; respond with HTTP 200 within a few seconds or Twitch will retry.
5. In your webhook handler, map the Twitch user ID to a game account (store a Twitch-to-game account link from your OAuth flow), grant the in-game item, and record the entitlement ID to prevent duplicate fulfillment.
6. Mark entitlements as fulfilled by calling the Twitch Entitlements API (PATCH /entitlements) so the Twitch dashboard reflects completion status.