I will integrate openai chatgpt API into your nodejs or nestjs backend

Adding ChatGPT to your app sounds simple until you actually try it. The first version works in testing, then you ship it and things start breaking. The bot says weird things to customers. Your OpenAI bill comes in three times higher than expected. The API rate-limits you and the feature goes down. That's the part I deal with every day.

I'm a backend engineer working with Node.js and NestJS for the past 2+ years. Most of my work has been adding AI features to real products in production, not building demos. Recent projects include an AI medical assessment platform using GPT-4 with background job processing, and a tutoring platform where the AI assistant helps students with their questions.

What you get:

- ChatGPT or GPT-4 connected to your Node.js or NestJS backend

- Prompts written and tested for your use case

- Streaming responses so users don't stare at a loading spinner

- Retry logic and rate limit handling so nothing crashes

- Token usage kept under control so your bill stays predictable

- Clean code with documentation

Send me a short message about what you're building and I'll tell you honestly if I'm the right fit. No long sales pitch.