How to Test Rate-Limited and Throttled APIs Without Breaking Workflows

<p>Two months ago I shipped UNPWNED, a passive web security scanner aimed at indie hackers and developers shipping AI-generated code (Cursor, Lovable, Bolt, Replit, v0).</p> <p>I

<h1> API Rate Limiting: A Complete Guide for Developers </h1> <p>APIs are the foundation of modern applications. Whether you're building a SaaS platform, mobile application, AI

<p><em>Three API calls. One template ID that has to carry through all of them.</em></p> <p>Resend's API for sending a templated email is three steps:</p> <ol> <li>Create a

<h2> Problem Statement </h2> <p><strong>Rate limiting</strong> is a technique that controls how many requests a user or system can make to a server within a specific timeframe.

<p>Most LLM client code has a retry branch that has never actually run. The provider returns 200 in every test, so the <code>429</code>, <code>500</code> and timeout paths sit

<ul> <li>[Why dependable test data is the difference between signal and noise]</li> <li>[Seeding and fixtures that scale: schema, factories, and anchored records]</li> <li>[Mocks,