OpenAI
Realtime
WebSockets
Next.js
Node.js
Audio
Interview Prep
Building Real-Time Mock Interviews with OpenAI Realtime API
A behind-the-scenes look at building a real-time mock interview system using OpenAI Realtime API, Next.js, Node.js, WebSockets, and audio streaming — including the tricky bugs and how they were fixed.
By Raj Sharma
Published November 25, 2025
10 min read
