Systems | Development | Analytics | API | Testing

Better integration tests in Cursor using proxymock

Cursor is fantastic at cranking out code changes. I recently used it to splice a brand-new downstream API call into one of our Go microservices, and the diff looked great. The unit tests finished before I lifted my coffee mug, yet I still had zero certainty the change would survive contact with real traffic. That gap is all about integration tests, so I paired Cursor with proxymock and the outerspace-go demo service to prove the behavior end to end.

AI wrote the code, but can you trust it? #aicoding #integration #cursor #devops #speedscale

Using AI coding tools like Cursor is fast, but it leaves a massive question: Is the new code going to break production? We solve this by combining Cursor with Proxymock! I take a live traffic snapshot of my running app, feed it back to the AI, and instantly run realistic integration tests locally. It's the only way to get true confidence before you push. Watch the full video below!

KubeCon + CloudNativeCon 2025: Recap

Hi everyone, my name is Bailey Ahrens, and I’m a marketing intern at Speedscale! I just returned a few days ago from KubeCon + CloudNativeCon North America 2025. While it was only my second trade show, it felt like a huge step forward in my confidence, skills, and future direction. My first conference (API World) was all about stepping outside my comfort zone. KubeCon was where I started leaning into that confidence and finding my place in the tech community.
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Settle Your QA Debt Before the Bugs Start Breaking Kneecaps

In Part One, we discussed how QA debt builds silently over time - causing slower releases, late-night firefights, and unpredictable test cycles. The next step is understanding how much debt you have and where it hides. This post goes deeper into measuring QA debt - what to track, how to collect data, and how to use those insights to create a sustainable plan for improvement.

Part 3: Building a Production-Grade Traffic Capture and Replay System

At a previous company, we had over 100 microservices. I’d make what seemed like a simple change to one service and deploy it, only to discover it broke something completely unrelated. A change to the user service would break checkout. An update to notifications would break reporting. We spent more time fixing unexpected bugs than shipping features. The problem was our test scenarios were too simple.

Speedscale Proxymock: Freely testing cloud native apps alongside AI code assistants

We’ll always remember 2025 as the year AI code assistants went big. Copilot, Cursor, Claude, Windsurf, whatever. Developers went from mistrusting these tools, to being expected to turn over much of their coding labor to them. Even if, according to an extensive Stack Overflow survey, only 3 percent of professional developers say they ‘highly trust’ AI coding tools.

MOCK AWS SES Locally! Stop Sending Test Emails & Cut Cloud Costs

In this quick guide, Speedscale's Matt LeRay shows you how to free your local development environment from direct AWS SES dependencies. When your application sends an email during local testing, it usually triggers a live AWS transaction, leading to slow tests, unnecessary cloud costs, and sometimes even spam filter issues.

Stop Getting Charged for Test Emails! #speedscale #aws #ses

Tired of local development using AWS SES leading to spam, cloud costs, and unnecessary API calls? When testing your app, you shouldn't have to connect to a live cloud environment just to send a test email. Learn how to set up your own local ProxyMock server to intercept and record real SES calls, so you can replay them instantly and accurately without ever leaving your desktop.

Cascading Failures Aren't Inevitable: Lessons from the AWS DNS Outage

AWS outages grab headlines because they affect millions, but the root cause often comes down to something invisible: DNS failures and cascading service dependencies. The complexity of modern cloud systems, combined with the advanced technology powering platforms like AWS, makes these outages particularly challenging to diagnose and resolve.