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Build a Pokedex in TypeScript

Build a command-line Pokedex with a REPL, API calls, JSON parsing, and caching in TypeScript.

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What you'll learn in this TypeScript course

A REPL, or Read-Eval-Print Loop, is a simple interactive programming environment that takes user input, evaluates it, and returns the result to the user. In this guided project, you'll build a Pokedex-like REPL in TypeScript that uses the PokeAPI to fetch data about Pokemon. It's a great way to put your TypeScript knowledge to the test and learn valuable skills like HTTP networking and data serialization.

Chapter List

1
REPL
A REPL (Read, Eval, Print Loop) is a simple interactive programming environment that takes user inputs, evaluates them, and returns the results. Learn how to implement one from scratch in TypeScript.
2
Cache
When making network requests, one of the most common performance optimizations is to cache the results. Implement an in-memory cache for the PokeAPI in TypeScript.
3
Pokedex
Bring your REPL and cache together to complete your fully functional Pokedex CLI.

Join 2,433 students in the Build a Pokedex in TypeScript course

Read reviews of their learning experiences

Felt like a pretty okay course, definitely learned stuff. I don't really understand why reviews are so overwhelmingly negative but the pacing is definitely kinda off and the last few lessons really need proper checks

(4/5)
Syrup  profile image

Syrup

Japan

One of the most fun projects in Bootdev. Totally recommended.

(5/5)
Ignacio Robles profile image

Ignacio Robles

Maitencillo, Chile

Horrible instructions that are based on "I've created something on my end that you don't really know about or can see, you should implement something similar." Very bad and vague explanations of what you expect of people to try/do. One of the worst courses in this whole ordeal

(2/5)
Alexandru Tirisca profile image

Alexandru Tirisca

Romania

Feels a little unfinished (especially because the last few steps lack proper validation), but did a great job of teaching fetching stuff from web API

(4/5)
Alex Rawlings profile image

Alex Rawlings

Canada

Excellent course for learning about APIs, JSON, and using some of the type features in TypeScript. Harder than I thought it would be, but well worth it!

(5/5)
Sannoso  profile image

Sannoso

United States

Very challenging, but fun.

(5/5)
Eternimus  profile image

Eternimus

The Abyss

This was a challenging project but certainly do-able if you've done the other courses recommended in the paths before this. It was great to get real hands-on experience working with api calls and json, and watching the pokedex work was really satisfying!

(4/5)
Calliergon  profile image

Calliergon

Canada

Challenging course. You have to figure out a lot on your own, which is good.

(5/5)
Mark R. Baker profile image

Mark R. Baker

North Saanich, BC, Canada

The project was fun to build learned a lot had to chat with boots most of the time . Overall a solid project but the instructions were horrible for a beginner.

(4/5)
Pratik  profile image

Pratik

Nepal

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Mediocrity doesn't cut it anymore

The only way to become a great developer is to write a lot of code

Avoid tutorial hell

by writing a ton of code

Stay motivated with

a game-like curriculum

Build portfolio projects

to prove your skills

Delve deeper

into foundational concepts

Learn flexibly online

without interrupting your life

For 1% the price of college

to minimize your financial risk

Frequently asked Questions

Got questions? We've got answers

Yes! It's free to create an account and start learning. You'll get all the immersive and interactive features for free for a few chapters. After that, if you still haven't paid for a membership, you'll be in read-only (content only) mode.