Systems | Development | Analytics | API | Testing

How to Test Your React Frontend When the Backend Is Offline #speedscale #frontend #backend #coding

Software development is hard, especially when you have to ensure every component works together; it's an integration maze! And running a full stack (like React, Go, and Postgres) on your dev machine often means one thing: running out of memory! The Fix: We'll show you how to use Proxymock to record your components, effectively letting you run the frontend (or any component) completely isolated.

How to Test Your React Frontend When the Backend Is Offline

Picture this: You’ve spent hours perfecting your React component. The animations are smooth, the responsive design works flawlessly, and you’re ready to test the user flow. You click “Submit” and… nothing happens. Or worse, you get a cryptic CORS error. The problem? Your backend isn’t running. Again.
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Mocking PostgreSQL the Easy Way: Simplifying Testing with Speedscale Proxymock

Every developer who's worked with PostgreSQL knows the pain: testing against a real database slows everything down. You need the database running locally, loaded with the right data, and configured to match production as closely as possible. Every time you run a new test or build, you're forced to repeat that setup migrate schemas, seed test data, and clean everything up again. It's time-consuming, brittle, and hard to scale across a team.

JWT Rot: Why Traffic Replay Tests Expire #speedscale #jwt #trafficreplay #apitesting #testautomation

Are your traffic replay tests crumbling because of expired tokens? You've got JWT Rot! When recording production traffic for integration or load testing, the embedded JSON Web Tokens (JWTs) often have a short expiration date. Once those tokens expire, your entire test suite fails, rendering your valuable traffic snapshots useless. Stop wasting time re-recording traffic. Learn how to defeat JWT Rot and ensure your security and API tests run reliably every time!

What I Learned From Building an eBPF-Based Traffic Capture Application

I just finished building Speedscale’s eBPF-based component to capture and analyze network traffic in a Kubernetes cluster, and it forced me to confront some uncomfortable truths about observability. While there were certainly some challenges along the way, particularly in dealing with Go applications, the approach was relatively straightforward.

Shopify Outage 2025: Rise of the Commerce Kaiju

It was a normal day in the land of eCommerce. Birds were singing, dashboards were loading, and merchants everywhere felt cautiously optimistic. Then the ground trembled. A tiny glitch. A flicker. A warning log no one read. And suddenly— BOOM! Shopify burst out of the digital ocean like a gigantic scaly beast that woke up on the wrong side of the server rack. Checkouts froze mid-purchase. Product pages stopped producting. Merchants stared blankly at blank screens. The Commerce Kaiju had arrived.

KubeCon Retrospective: Platform Engineering Needs to Do More Testing

Every year, KubeCon offers a candid look at where the cloud-native community stands — the tools gaining traction, the pain points teams share, and the big gaps still holding organizations back. After a week of deep conversations, session hopping, and talking to dozens of platform teams, one theme became impossible to ignore: Platform engineering still isn’t doing enough testing. And even more surprising: many teams don’t think testing is their responsibility.

Understanding Kafka with Speedscale #speedscale #kafka #visualization #engineering #production

In this video, we're breaking down the complex world of Apache Kafka and showing you how to gain deep visibility into your event streaming architecture using Speedscale. Kafka is the backbone of modern, cloud-native systems, but understanding what's happening in production—which topics are receiving traffic, where messages are going, and how services are interacting can be a real challenge. We'll cover how Speedscale makes Kafka visualization and debugging simple by.