ilshaad

Posted on Feb 27 • Originally published at codelesssync.com

Stripe Webhooks vs Database Sync: Which is Better?

#stripe #postgres #webdev #saas

Comparing Stripe webhooks and database sync for getting billing data into your app. Learn when to use each approach — and when to use both.

By Ilshaad Kheerdali · 27 Feb 2026

If you're building anything on top of Stripe, you'll eventually need to get that data into your own database. There are two main approaches: webhooks and database sync. Both work, but they solve different problems.

This post breaks down how each approach works, what can go wrong, and when you should use one over the other.

How Webhooks Work

Stripe webhooks are push-based. When something happens in Stripe — a customer signs up, a payment succeeds, a subscription gets cancelled — Stripe sends an HTTP POST request to your server with the event details.

Here's what a typical webhook handler looks like in Express:

import express from 'express';
import Stripe from 'stripe';

const stripe = new Stripe(process.env.STRIPE_SECRET_KEY);
const endpointSecret = process.env.STRIPE_WEBHOOK_SECRET;

app.post('/webhooks/stripe', express.raw({ type: 'application/json' }), (req, res) => {
  const sig = req.headers['stripe-signature'];

  let event: Stripe.Event;
  try {
    event = stripe.webhooks.constructEvent(req.body, sig, endpointSecret);
  } catch (err) {
    return res.status(400).send(`Webhook Error: ${err.message}`);
  }

  switch (event.type) {
    case 'customer.created':
      // Insert into your database
      break;
    case 'customer.updated':
      // Update your database
      break;
    case 'invoice.paid':
      // Mark invoice as paid
      break;
    // ... handle dozens more event types
  }

  res.json({ received: true });
});

That's the basic idea. Stripe pushes events to you in near real-time, and your server processes them.

The Problems with Webhooks

Webhooks are great in theory. In practice, they come with a list of operational challenges:

Missed events. If your server is down when Stripe sends an event, you miss it. Stripe retries for up to 72 hours, but if your server has an extended outage or the endpoint URL changes, events get lost permanently.

Ordering issues. Events can arrive out of order. You might receive customer.updated before customer.created if there's a slight delay. Your code needs to handle this gracefully.

No historical backfill. Webhooks only capture events from the moment you set them up. If you want last year's customer data, webhooks can't help you. You'll need to write a separate backfill script using the Stripe API.

Schema management. Every event type has a different payload shape. Supporting customer.created, invoice.paid, subscription.updated, and dozens of other events means maintaining a lot of mapping logic. And when Stripe updates their API, your handlers may need updating too.

Replay complexity. Need to rebuild your data after a bug? You'll have to use the Stripe dashboard to resend events one by one, or write a custom replay script. There's no "sync everything from scratch" button.

Signature verification. Every webhook request needs cryptographic verification. It's one more thing to get right, and getting it wrong means either rejecting valid events or accepting forged ones.

How Database Sync Works

Database sync takes the opposite approach. Instead of Stripe pushing events to you, a sync service periodically pulls data from the Stripe API and writes it directly into your PostgreSQL database.

The flow looks like this:

Connect your PostgreSQL database (Supabase, Neon, Railway, or any PostgreSQL host)
Provide your Stripe API key (read-only)
The sync service calls the Stripe API, fetches your data, and writes it to a structured table
On subsequent runs, it only fetches records that have changed (incremental sync)

There's no webhook handler to write, no event types to map, and no signature verification. The data just shows up in your database, ready to query.

Side-by-Side Comparison

Factor	Webhooks	Database Sync
Data freshness	Near real-time (seconds)	Batch (hourly/daily)
Setup complexity	High — endpoint, verification, event handling	Low — connect database and API key
Historical data	No — only captures new events	Yes — full backfill on first sync
Reliability	You handle retries and failures	Managed by the sync service
Maintenance	Ongoing — handle new event types, API changes	Minimal — schema updates handled automatically
Code required	Significant — handler, mapping, error handling	None (no-code) or minimal (custom scripts)
Data completeness	Only events you subscribe to	All records for the data type
Best for	Triggering actions in real-time	Querying and analysing data

When to Use Webhooks

Webhooks are the right choice when you need to react to events in real-time:

Send a welcome email when a customer signs up
Provision access when a subscription starts
Revoke access when a payment fails
Trigger a workflow when an invoice is finalised
Update a UI in real-time when a charge succeeds

If your use case is "when X happens in Stripe, do Y immediately," webhooks are probably what you want. The real-time push model is designed exactly for this.

When to Use Database Sync

Database sync is the right choice when you need to query, analyse, or join Stripe data:

Build dashboards showing revenue trends, churn, or customer growth
Run ad-hoc queries like "which customers have spent over £1,000 this quarter?"
Join billing data with your app data — combine Stripe customers with your users table
Generate reports for accounting or investor updates
Power internal tools where teams need to look up customer billing history

Here's an example. Once your Stripe data is synced to PostgreSQL, you can run queries like this:

-- Monthly revenue trend for the last 6 months
SELECT
  DATE_TRUNC('month', created) AS month,
  COUNT(*) AS invoice_count,
  SUM(amount_paid) / 100.0 AS revenue
FROM stripe_invoices
WHERE status = 'paid'
  AND created >= NOW() - INTERVAL '6 months'
GROUP BY month
ORDER BY month DESC;

-- Customers who signed up but never paid
SELECT sc.email, sc.name, sc.created
FROM stripe_customers sc
LEFT JOIN stripe_invoices si ON sc.stripe_id = si.customer
WHERE si.id IS NULL
ORDER BY sc.created DESC;

Try doing that with the Stripe API directly. You'd need multiple paginated API calls, client-side filtering, and careful rate limit handling. With synced data, it's just SQL.

When to Use Both

Here's the thing — webhooks and database sync aren't mutually exclusive. In fact, the best setups often use both:

Webhooks handle real-time events: send emails, update permissions, trigger workflows
Database sync keeps a queryable copy of your Stripe data for reporting and analysis

This gives you the best of both worlds. Your app reacts to events instantly through webhooks, while your team can run any query they want against the synced database. The two approaches complement each other.

Getting Started with Database Sync

If you want to try the sync approach, Codeless Sync lets you connect your PostgreSQL database and start syncing Stripe data in about 5 minutes. There's a free tier, no credit card required.

For a step-by-step walkthrough, check out our tutorial: How to Sync Stripe Data to PostgreSQL in 5 Minutes.

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