Backend Architecture & Production Readiness

Artificial Intelligence

Refactor the backend for production-style reliability. Replace manual validation with Zod, standardize responses, and introduce a repository pattern. Add in-memory and file-based persistence, enabling flexible data storage while keeping the API stable and predictable.

Codex

Nextjs

TypeScript

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3 lessons

9 practices

1 hour

Course details

Validation and Response Helpers

Preview

Creating Task Zod Schemas

Implementing JSON Response Helpers with Meta

Wiring Zod & Response Helpers into Task Routes

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From our community

Hear what our customers have to say about CodeSignal Learn

I'm impressed by the quality and can't stop recommending it. It's also a lot of fun!

Francisco Aguilar Meléndez

Data Scientist

+11

I love that it's personalized. When I'm stuck, I don't have to hope my Google searches come out successful. The AI mentor Cosmo knows exactly what I need.

Faith Yim

Software Engineer

+14

It's an amazing product and exceeded my expectations, helping me prepare for my job interviews. Hands-on learning requires you to actually know what you are doing.

Alex Bush

Full Stack Engineer

I'm really impressed by the AI tutor Cosmo's feedback about my code. It's honestly kind of insane to me that it's so targeted and specific.

Abbey Helterbran

Tech consultant

I tried Leetcode but it was too disorganized. CodeSignal covers all the topics I'm interested in and is way more structured.

Jonathan Miller

Senior Machine Learning Engineer

+12

I'm impressed by the quality and can't stop recommending it. It's also a lot of fun!

Francisco Aguilar Meléndez

Data Scientist

+11