Prepwise

A basic AI-powered mock interview application built with Next.js. The app lets users sign in, create interview sessions, practice with an AI voice interviewer, and receive feedback after each session.

Features

• User authentication with Firebase
• Create and manage mock interviews
• AI-generated interview questions
• Voice-based interview experience with Vapi
• AI feedback and scoring after interviews
• Responsive UI built with Next.js and Tailwind CSS

Tech Stack

• Next.js
• React
• TypeScript
• Tailwind CSS
• Firebase
• Vapi AI
• Google Generative AI
• shadcn/ui

Getting Started

Prerequisites

• Node.js
• npm

Installation

git clone <https://github.com/iamvtyagi/Prepwise.git>
cd ai_mock_interviews
npm install

Environment Variables

Create a .env.local file in the project root and add the required values:

NEXT_PUBLIC_VAPI_WEB_TOKEN=
NEXT_PUBLIC_VAPI_WORKFLOW_ID=
GOOGLE_GENERATIVE_AI_API_KEY=
NEXT_PUBLIC_BASE_URL=
NEXT_PUBLIC_FIREBASE_API_KEY=
NEXT_PUBLIC_FIREBASE_AUTH_DOMAIN=
NEXT_PUBLIC_FIREBASE_PROJECT_ID=
NEXT_PUBLIC_FIREBASE_STORAGE_BUCKET=
NEXT_PUBLIC_FIREBASE_MESSAGING_SENDER_ID=
NEXT_PUBLIC_FIREBASE_APP_ID=
FIREBASE_PROJECT_ID=
FIREBASE_CLIENT_EMAIL=
FIREBASE_PRIVATE_KEY=

Run the app

npm run dev

Open http://localhost:3000 to view it in the browser.

Project Structure

• app/ - Pages and route handlers
• components/ - UI components
• lib/ - App logic and helpers
• firebase/ - Firebase client and admin setup
• constants/ - Shared app constants