Refactoring for Production Readiness

Back-end Engineering

This course strengthens learners' backend development skills by introducing production-grade practices. It focuses on replacing in-memory logic with persistent storage, enforcing professional validation standards, and abstracting data access into repositories. By simulating real-world persistence and layering, learners prepare for transition into full-stack or database-backed applications.

Nextjs

NodeJS

TypeScript

See path

3 lessons

11 practices

1 hour

Server-Side Programming

Course details

Professional Validation with Zod

Preview

Observe and Experiment: Zod-Powered Task Validation in Action

Define Your First Zod Schemas for a Task API

Validate and Create Tasks: Implement the POST Endpoint

Update with Confidence: Validate PUT and PATCH Requests

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Francisco Aguilar Meléndez

Data Scientist

+11

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