External APIs fail differently from your code
Providers retry. Networks time out. Webhooks arrive twice, arrive late, or arrive out of order. Rate limits change the shape of a workload. Treating an external API call like a local function eventually turns a provider problem into your production incident.
SazM designs integrations around those failure modes instead of assuming the happy path is the only path.
Integration projects
- Stripe and subscription webhook integrations
- CRM, ERP, inventory, logistics, and operational-system sync
- Third-party API ingestion and scheduled synchronization
- Webhook verification, deduplication, and idempotency
- Retry queues and asynchronous background processing
- Rate-limit-aware data ingestion
- Repair of an existing integration that intermittently loses or duplicates state
- Small API integrations added to an existing production application
How reliable integrations are built
- Define the state: identify which system owns each piece of truth.
- Verify the boundary: authenticate requests and validate payloads before they enter the application.
- Make delivery repeatable: use idempotency and deduplication so retries do not create duplicate business actions.
- Move slow work off requests: queue long-running provider calls and webhook processing rather than blocking web workers.
- Observe the failures: record enough state to distinguish a provider outage, a bad payload, a retry, and an application defect.
Production evidence
SazM has resolved Stripe-to-database subscription synchronization failures by decoupling webhook processing with retry and idempotency validation. It has also moved synchronous third-party API ingestion to background queues after request-thread starvation appeared under load, while keeping rate limits and write integrity explicit.
Start with the two systems
Tell us which systems need to communicate, what data must move, how often it should move, what currently breaks, and what must never happen twice.