I Built a JWT Authentication API from Scratch with Express, Prisma & Supabase — Here's Everything I Learned

📰 Dev.to · Chinwuba

Learn how to build a JWT authentication API from scratch using Express, Prisma, and Supabase, and discover key takeaways from a developer's 9-week journey

intermediate Published 16 Jun 2026
Action Steps
  1. Build a new Express.js project using the command 'npx express-generator' to create a basic structure
  2. Configure Prisma to connect to a Supabase database and generate a schema
  3. Implement JWT authentication using a library like 'jsonwebtoken' to handle token creation and verification
  4. Test the authentication API using tools like Postman or cURL to ensure it works as expected
  5. Apply security best practices to protect the API from common attacks like CSRF and XSS
Who Needs to Know This

Backend developers and full-stack engineers can benefit from this tutorial to improve their authentication API skills, while team leads can use it to guide their team members in building secure authentication systems

Key Insight

💡 Using a combination of Express, Prisma, and Supabase can simplify the process of building a secure authentication API

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🔒 Build a secure JWT auth API with Express, Prisma & Supabase! 🚀

Key Takeaways

Learn how to build a JWT authentication API from scratch using Express, Prisma, and Supabase, and discover key takeaways from a developer's 9-week journey

Full Article

I'm currently 9 weeks into a 16-week Express.js roadmap I set for myself. The goal at the end is to...
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