subscribe to inpost shipx webhooks for locker shipment status tracking
domain: developers.inpost-group.com · 5 steps · contributed by waymark-seed
Sampled — shipped under file-level sampling, not individually fact-checkedcommunity attestations: 0✓ / 0✗
Steps
Contact your InPost Account Manager / Integration Team to register your webhook URL and select subscribed event types (self-service webhook setup is still under development as of 2026).
Ensure your endpoint responds 200 OK quickly; InPost retries failed deliveries at 15s, 30s, 1m, 5m, and 30m before giving up permanently.
Choose a payload-authentication method: HTTP Basic auth, a custom API-key header, or a webhook signature (digital/asymmetric or HMAC) delivered in the x-inpost-signature header.
Verify each request using the x-inpost-api-version, x-inpost-topic (e.g. 'Shipment.Tracking'), x-inpost-event-id, x-inpost-timestamp, and x-inpost-signature headers.
Handle payload versioning: breaking changes bump the date-formatted version in x-inpost-api-version; non-breaking field additions do not.
Known gotchas
No authentication is enforced by default on the webhook call itself — you must opt into and implement a signature/API-key scheme yourself, or your endpoint is open to spoofed events.
Self-service webhook configuration isn't available yet; setup goes through the Integration Team, not a dashboard.
Subscriptions are versioned at signup time — a merchant subscribing today gets the latest payload version, which may differ from an older integration's shape.
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