Exercises to learn substrate

How to train ?

fork this repository
clone it on your machine
switch to the branch of your exercise
code until all tests passes

What is in those exercises ?

We designed the exercises to teach you:

how to use the numerous features of Substrate
some good Substrate practices
some blockchain core principles

Each one exists on two version, on two branches: one for the exercise, with ex/ prefix, one for the solution, with solution/ prefix.
If you are stuck, you can always check the solution. It's not cheating, it's just learning 🧑‍🎓

Recommended order

pallet-testing: get familiar with substrate testing suite
fungible-token: build a basic fungible asset pallet and learn how to write substrate extrinsics and interact with storage
nft: build a basic NFT pallet and write more extrinsics (they are substrate 🍞 and 🧈, so better work them twice)
marketplace: build a marketplace for our NFTs and discover how to make pallets interact with each other

How to contribute ?

Create an exercise

checkout the main branch as solution/<your-exercice-name>
code the tests and the solution
checkout your branch as ex/<you-exercise-name>
remove parts of the code in order to make tests fail
edit the README with an introduction, add hints and instructions into you code comments
create two pull requests to this repo

Feedback

Any feedback is welcome. Feel free to open issues !
You can also request the themes you would like to be trained on.