DZDmitry Zaporozhaninthezap.hashnode.dev·Jun 25 · 12 min readRate-limiting anonymous users with no login, no Redis — just a cookie and an IPI let people use my app before they sign up — upload a photo, get outfit feedback, no account needed. Great for conversion, right up until you remember every one of those anonymous calls hits a paid v00
DZDmitry Zaporozhaninthezap.hashnode.dev·Jun 22 · 7 min readStop parsing GPT's JSON by hand: structured output with OpenAI Responses API, Zod and TypeScriptI shipped a feature that sends a photo to a vision model and gets back structured feedback — three labeled fields, every time, no exceptions. The hard part wasn't the prompt. It was getting the model 00
