PRACTICAL FIELD GUIDE
Webhook arrival order is not record-update order
Webhooks do not guarantee arrival ordering, so the last notification received may not describe the latest record state. Decide whether the consumer should apply events or fetch current state.
MCPBackend editorial team · · Examples are illustrative
Put it into practice
- Identify whether the downstream task needs historical changes or the latest record.
- For current-state synchronization, re-read the API using an authorized server credential.
- Test reversed event arrival and avoid overwriting newer state with stale payload data.
What this looks like
ILLUSTRATIVE EXAMPLE
An updated event arrives after a later change was already processed. Fetching current state can prevent the old payload from becoming authoritative.
A boundary to keep clear
An occurredAt field is useful context but does not create an ordering guarantee or a durable history by itself.
MCPBackend context
MCPBackend webhooks currently make one delivery attempt with a five-second timeout and no retry or ordering guarantee. Treat them as change notifications, not a durable event ledger. For workflows that must complete, use a durable processing system you operate and reconcile its state against the data API.
Take the next step
Inspect the current project contract, try the change with disposable data, and verify the result through the same credentials your app will use. Record the expected response and one denied-access case before release.
Sources and further reading
These references explain the underlying protocols and design principles. For supported MCPBackend operations and exact request shapes, inspect your project’s generated API contract.