Topi · AsyncAPI Specification

Topi Webhooks

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AsyncAPI Specification

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generated: '2026-07-21'
method: searched
source: https://developer.topi.eu/api
spec_type: Webhooks
note: >-
  topi does not publish a full AsyncAPI document, but the Seller API reference
  documents an event/webhook surface. Sellers receive webhooks for offer and
  order state changes. The OpenAPI also carries EventPayload / MessagePayload /
  PubSubPayload schemas backing the event delivery. Captured as a webhook catalog
  (type: Webhooks); no AsyncAPI spec is fabricated.
event_schemas: [EventPayload, MessagePayload, PubSubPayload]
webhooks:
  - name: Offer Updates
    trigger: Fired when an offer's status changes.
    statuses: [accepted, declined, voided, pending_review, expired]
    payload:
      matches: Offer response structure
      fields: [id, created_at, status, checkout_redirect_url]
  - name: Order Events
    trigger: Fired on order lifecycle events (created / confirmed / updated).
    note: Documented as webhook support for order operations in the API reference.
subscription:
  mechanism: >-
    Webhook endpoints are configured with topi (sandbox supports webhook
    configuration for end-to-end testing); there is no self-serve webhook
    registration operation in the Seller API spec.

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