Learning Web3 and blockchain development today is like buying a Bitcoin at $10 yesterday.
Entering the Blockchain industry where the average programmer is paid around $140k/year, is probably the best investment you can make as a developer.
Unfortunately, the web has a scarcity of good resources, and finding a good blockchain development roadmap might rapidly become tedious.
After the incredible success of the Complete Solana Development Roadmap I’ve taken the time to gather the best online videos, courses, and websites and put together the best web3 and Solidity developer roadmap.
From complete zero programming knowledge to Solidity and Blockchain expert, that’s why we’ll start with the fundamentals of Computer Science.
1. Before Web3.0 and Blockchain: Fundamentals of Computer Science
A Skyscraper needs solid foundations to not collapse.
Blockchain development it’s a tough subject, I won’t lie. Before digging deeper into nodes and blocks and starting your roadmap, better learn the fundamentals of computer science:
The famous CS50 — fundamentals for Computer Science — free course issued by Harvard itself will teach you all you need to know to understand the basics of computers and data handling.
Once you’ll have some CS understanding, it’s time to learn how the Blockchain works, why it’s useful, and its limitations.
2. Learn The Fundamentals Of Blockchain
As a Web3.0 developer, you need to understand what the Blockchain is, how it works and why it might disrupt the way we exchange goods and make payments.
Blockchain technology is no more related only to crypto coins but it has become a truly distributed cloud computing system capable of running full Backends to power-cutting edge Decentralized Applications (DApps).
Learn the fundamentals of the Blockchain on Coursera for Free with Blockchain 101.
3. What is a Decentralized Application?
When you’ll have learned about the blockchain, nodes, consensus, and all the main components of this technology, you’ll start to wonder:
“What kind of applications can I develop using the blockchain?”
The applications built on top of Blockchain are called Decentralized applications, or DApps, and have:
- A Solidity/Solana/Rust backend, built on top of the blockchain.
Learn what is a Decentralized Application:
To understand how the front-end and the backend of a DApp work together: communicating and exchanging data, you need to learn Front-end development and the basic principles of standard backend development, APIs, and patterns.
4. Learn Front End Development in 2022
The Complete 2022 Front-end development Roadmap with 15+ Free resources to kickstart your journey and start monetizing your skills.
5. Should I Learn Backend Development to Become a Web3 Developer?
Yes and now.
Decentralized Applications backends vastly differ from “standard” applications backends, starting from the fact that Blockchain technology is used as the main source of decentralized data storage, whereas standard backends usually use Databases or Object Storage.
The majority of technical principles remain the same, though, and it’s not suggested to jump straight into blockchain and web3.0 development without a strong foundation of the main principle of standard web development
5.1 Learn Backend Development in 2022
Learning backend development it’s a very rewarding process: connecting DB, creating your own REST API and building the business logic that will power your tools, is a great step to take.
I’ve recently published The ultimate Roadmap to Backend Development with Free Resources. You might want to give it a read!
Learn: Node, Express, DBs, HTTP, how to develop APIs, and start deploying cutting-edge applications.
6. Web3 and Solidity Developer Roadmap: learn What is Ethereum and How it Works
A web3.0 developer needs to understand how Ethereum works.
Ethereum is software running on a network of computers that ensures the replication and processing of small programs called Smart Contracts.
The majority of Decentralized applications, now run on top of the Ethereum Blockchain, Smart Contracts had also been implemented by the Ethereum Consortium, then “copied” by other Blockchains.
It’s key to become an Ethereum expert for a web3.0 and Solidity developer, at least in 2022.
Learn more about Ethereum in this video with Vitalik Buterin, one of the inventors of the Ethereum Blockchain talks about this technology.
If you want to explore further what Ethereum is, I heavily suggest you go and check the documentation and original Ethereum website.
7. Software on the Blockchain: Smart Contracts
Ethereum and Smart Contracts are like Bread and butter, you need to understand both.
A Smart Contract is software stored on a blockchain-based platform, that automatically executes an agreement.
It is written in Solidity, Rust, or Vyper (Solidity but in Python flavor), and it’s the key component of any Decentralized Application, powering its business logic and allowing you to store information on the blockchain, just like you would do in a standard Database.
8. Learn Solidity to Develop and Deploy Smart Contracts
Of course knowing what Smart Contracts are is not enough, as a Web3.0 or Blockchain Developer, you have to know how to write your own Smart Contracts and use them to power your own Decentralized Applications. Here is when Solidity comes in help.
Solidity is a high-level, contract-oriented programming language to write smart contracts, allowing programmers to write self-executing code that powers blockchain DApps.
Unfortunately, as we were saying, the web lacks good resources to learn about Solidity and Blockchain Development.
Here are the best 2022 Solidity free courses / platforms I’ve found:
- Alchemy University
- Nader Dabit – Full-stack web3 development tutorials
- Solidity in 32hrs + Blockchain – freecodecamp
9. A fully fledged Web3 Developer path
Web3.university collects the best tutorials about Web3 development, from zero to hero, from what is a Smart Contract, to how to create an Automated Market Maker.
With content coming from the best creators in the web3 space, web3.university is probably the most comprehensive knowledge base you’ll find online about Blockchain development, and Web3 tutorials.
Become a Web3 developer with web3.university
10. Earn Your Web3 Degree – Alchemy University
Probably one of the most popular web3 websites out there, Alchemy University offers a series of high-quality Web3 courses completely for free!
Follow up with The Ethereum Bootcamp to earn your web3 degree and learn about cryptography, smart contracts development, and security!
Everything is completely free!
11. Learn Solidity by Creating Zombies
Turns out one of the best resources to learn about Solidity is a Gamified Programming course, where you’ll learn how to develop Smart Contracts while creating a Zombie factory to start your world domination plan.
The game is divided into sections, going from complete newbie to advanced Solidity developer. I suggest you to play it while following one of the other suggested courses, as it helps with practice.
12. Connect your DApp Front-end: Learn Web3.js or Ethers.js
Now that you know how to create Smart Contracts, you need a way to connect your front-end with your local or remote Solidity (or similar) backend, using anything from HTTP to Websockets.
12.1 Learn Web3.js
12.2 Learn Ethers.js
13 – Learn Alchemy
Think of Alchemy like the AWS of the Blockchain, it provides you the infrastructure needed to deploy your DApps in no time, with a reliable and analytics-ready Node provider, and Tools.
Alchemy will also provide you with APIs to deploy NFTs collections without writing a single Solidity line, notifications connected to on-chain events, and an Enhanced Web3 library with smart sockets and an expanded Ethereum API.
14 – Learn Remix IDE
Remix is a web-based IDE specifically developed for Ethereum Smart Contract development using Solidity and YUL. No setup is required and navigating to its home page, will automatically bring you to a full-fledged code editor with a few examples.
From Remix IDE you’ll be able to write, compile, test, and deploy your Solidity smart contracts pushing a button.
Kudos also to its methods inspection feature that allows you to manually test Smart Contracts functions directly using the UI.
Oh, and it’s completely free.
15. Develop your first Web Project
Learning by practicing and solving problems is key, it’s literally the best way our brain has to retain information.
Start building your first DApps to reinforce your understanding of blockchain development.
Other DApps Project Inspirations
Finding project ideas to showcase in your blockchain developer portfolio, might not be that intuitive.
Let me share with you 6 projects ideas to practice your web3.0 knowledge.
16. Learn HardHat
Sometimes REMIX IDE won’t be enough, and bringing your project to the good old VSCode will be the only decision to take.
To do this, you’ll need to set up a local Ethereum Development environment, and that is exactly what HardHat helps with.
HardHat comes with a set of fundamental functionalities to create, test, and deploy your decentralized applications on multiple chains, like Polygon, Ropsten, Ethereum Mainnet, and many more.
It will also give you the ability to spin up a local ethereum node to test your Smart Contracts without the need of deploying them on a public Blockchain.
17. Learn Truffle And Ganache
Speed Up Your Development With Truffle: a development environment, testing framework, and asset pipeline for any EVM Blockchain.
It comes with:
- Built-in smart contract compilation
- Scriptable migration framework
- and more.
Ganache on the other side comes included in the Truffle suite and is used to Test Ethereum Contacts. It essentially creates a simulated blockchain with accounts to test your transactions and avoid setting up useless boilerplates to kickstart your DApp development.
18. Learn How to Test your Smart Contracts
Testing Your Blockchain Smart Contracts is Key.
What makes the Blockchain so special is the non-reversibility: once a Smart Contract is added, it can’t be edited or recalled, and its deployment also costs real money (GAS fees).
This is the reason why you should learn how to thoroughly test your smart contracts before deploying them.
How do I Test my Decentralized Application?
There are 4 types of testing to test your Smart Contracts:
- Node Testing.
- Functional Testing.
- Performance Testing.
- API Testing.
Learning Web3.0 and blockchain development might sound daunting at first, but everyone can do it.
You won’t learn Blockchain Development in 1 week, but you can do it in 1 year of full commitment.