Webhook & API integration repair

Trace one failing delivery path across two connected systems, repair the controlled failure, and leave evidence that distinguishes missing, repeated, rejected, conflicting, and uncertain outcomes.

Starting point: Two connected systems
Primary outcome: Reconciled delivery
Recovery rule: Duplicate-safe

WHEN THIS FITS

The sender says delivered. The destination disagrees.

This focused route is for webhook or API incidents where events disappear, arrive more than once, fail validation, stop at an undocumented mapping, hit a rate limit, or time out after the destination may already have changed.

WORKING PATH

01
Bound the incident
Name the authorized source, destination, event types, business identifiers, affected window, and unacceptable outcome.
02
Trace the contract
Compare signatures, schemas, delivery logs, response codes, retry rules, and durable records instead of guessing from a dashboard.
03
Repair the path
Correct validation, mapping, state, and recovery logic with stable identity, finite retries, review states, and duplicate protection where justified.
04
Prove recovery
Exercise first delivery, exact replay, conflict, rejection, timeout, and reconciliation cases with safe fixtures and an operator runbook.

EXPECTED DELIVERABLES

Provider-specific delivery contract and failure timeline
Corrected webhook or API integration logic
Signature and schema boundaries where applicable
Stable idempotency and duplicate policy
Finite retry, review, and terminal states
Destination lookup before an ambiguous repeat
Bounded source-to-destination reconciliation
Regression fixtures, recovery runbook, and handoff notes

GOOD FIT

One authorized path with evidence on both sides.

An accountable owner can define the intended business effect.
The source and destination can be inspected through approved logs, APIs, or test accounts.
Stable event or business identifiers exist or can be introduced safely.
A sandbox, staging path, or sanitized fixture can represent the failure.

NOT A FIT

A blind replay into an uncontrolled production system.

The request depends on bypassing authentication, platform controls, or terms.
No authorized owner, delivery evidence, or safe test path exists.
A destructive, financial, or customer-facing write would run without accountable approval.
Emergency availability or an ongoing support SLA is assumed before agreement.

RECOVERY SEMANTICS

Webhook Recovery Lab

Seven signed synthetic events verify exact replay suppression, conflict quarantine, transactional outbox delivery, bounded retry, ambiguous-delivery recovery, and source reconciliation. It is a private-source reference build, not client or named-vendor work.

Inspect the recovery evidence Run the private failure triage Use the incident checklist

ORCHESTRATION HANDOFF

n8n API Handoff Lab

A credential-free local n8n workflow and mock API verify six loopback requests, typed success and failure contracts, bounded retry, review routing, and zero external actions. It is not production integration delivery.

Inspect the handoff evidence Review the broader rescue service

BEFORE A COMMITMENT

Evidence defines the repair boundary.

Pricing and schedule depend on the systems, delivery contract, incident window, access path, data sensitivity, safe test environment, and acceptance criteria. Do not send credentials, signing secrets, production payloads, or personal records through ordinary email. Every price, deadline, contract, production change, and support commitment remains owner-approved before any commitment.

START WITH ONE DELIVERY

Show what should have happened and what each system recorded.

Describe the source, destination, event type, observed response, and current recovery method without including secrets or private payloads.

Triage the failure privately Discuss the integration Prepare the incident evidence