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API Integration

Webhooks vs Polling: Choosing a Reliable Integration Pattern

By Aditya Kumar Singh

Webhooks and polling both synchronize systems, but they differ in latency, reliability, complexity, and operational cost.

Use webhooks when a provider can notify your system about changes, and use polling when notifications are unavailable or when the workflow needs scheduled reconciliation. This article explains the decision in practical terms so a business owner, product team, or developer can understand what to do next.

A webhook receiver still needs signature validation, idempotency, quick acknowledgement, logging, and a retry strategy. The useful implementation starts by making the requirement, risk, and expected behavior explicit before choosing a tool or writing a shortcut.

A payment or CRM event can trigger a webhook, while a nightly reconciliation job can compare recent records and repair missed events. Reviewing this kind of example helps connect an engineering decision to the people, workflow, and outcome it is meant to support.

Reliable integrations often combine event notifications with periodic reconciliation rather than trusting a single mechanism completely. A strong solution remains understandable after launch, because maintainability, accessibility, performance, and reliable communication are part of the result.

Before publishing or implementing a solution, test the important path with realistic content and realistic failure cases. Record the decision, measure the result, and improve the system when new evidence appears.

Frequently Asked Questions

1. Are webhooks always real time?

They are near real time, but delivery can be delayed, duplicated, or fail temporarily.

2. Why is polling sometimes useful with webhooks?

Polling can detect missed events and reconcile data after outages or configuration errors.

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