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# Streaming AI Responses in Real-Time with SSE in Next.js & NestJS


- **Date:** Friday, Jul 11, 2025
- **Time:** 11:00–11:30 (30 min)
- **Room:** Stage 7
- **Event:** World Congress 2025
- **Tags:** ai, javascript, llms, performance

## Recording

[Watch recording](https://www.wearedevelopers.com/videos/1630-streaming-ai-responses-in-real-time-with-sse-in-next-js-nestjs)

## Description

Instant AI responses are crucial for modern applications, but traditional real-time data streaming methods like WebSockets and polling can introduce unnecessary complexity and overhead. What if there was a more efficient way?

This session dives into Server-Sent Events (SSE) with Next.js & NestJS as a lightweight, scalable alternative for real-time AI interactions. We’ll compare SSE vs WebSockets vs Polling, explore performance trade-offs, and implement a real-time AI-powered app that streams responses dynamically.
What You’ll Learn:

- Why SSE? How it compares to WebSockets & Polling.
- Hands-on Demo: Building an AI-powered app that streams responses in real-time.
- Performance Optimization: Reducing API overhead and improving response times.

## Speaker

### [Ahmed Megahd](https://www.wearedevelopers.com/@ahmed-megahd)

Ahmed Megahd, Software Development Head at Soki AG


## Related talks at this congress

- [Prompt API & WebNN: The AI Revolution Right in Your Browser](https://www.wearedevelopers.com/events/world-congress-2025/sessions/888-prompt-api-webnn-the) — Christian Liebel
- [Privacy-first in-browser Generative AI web apps: offline-ready, future-proof, standards-based](https://www.wearedevelopers.com/events/world-congress-2025/sessions/551-privacy-first-in) — Maxim Salnikov
- [Building Interactive Async UI with React 19 and Ariakit](https://www.wearedevelopers.com/events/world-congress-2025/sessions/640-building-interactive) — Aurora Scharff
- [Lessons learned from building a thriving Vue.js SaaS application](https://www.wearedevelopers.com/events/world-congress-2025/sessions/923-lessons-learned-from) — Abdelrahman Awad