One of the great things about a decentralized cryptocurrency is that we can directly connect to the network to make transactions. In this video, we'll talk about the Ethereum protocol and what client we'll use.

A Beginner's Guide to Coding with Ethereum

In this video we'll install geth, create a local network, and create our first Ethereum account.


How to Create Ethereum Accounts with Geth

Now that we have some accounts, we can earn ETH by running a miner.

How to Mine Ethereum Locally with Geth

Using Geth to Transfer Ethereum Between Accounts

Getting Started with Ethereum

What is a smart contract? It's like a regular contract, but defined by code (and in Ethereum with Solidity, a smart contract is essentially an instance of a class).


What is a Smart Contract? An Intro to Ethereum and Solidity

In this video, we'll write our first Solidity smart contract


How to Write an Ethereum Smart Contract with Solidity

How to Write and Compile a Solidity Smart Contract

How to Call An Ethereum Smart Contract Code From Javascript

Building Smart Contracts

How to Connect to Ethereum with Web3.js From JavaScript

How to Interact with Smart Contracts on Ethereum Blockchain

Connecting Etherum and the Browser

solc

geth

web3

In this course, we'll walk through what Ethereum is, how to write _smart contract_ - code that describes an agreement between parties. We'll start by creating a local test network, mining some Ether and then sending value between the accounts.

After that, we'll talk about Solidity, Ethereum's smart contract programming language. We'll build our first smart contract and interact with it on the commandline.

After that, we'll hook up to our smart contract to our web browser to build a UI using web3 and JavaScript.

In this course, we'll show you how to create your first Smart Contract with Ethereum

Intro to Programming Ethereum ĐApps

How to use web3 to connect with your browser

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  In this video, we'll write our first Solidity smart contract
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In the last video, we built a simple counter contract in Solidity, we deployed it to the blockchain, and called methods on it to update the state.

There's a lot more we have to learn about Solidity and smart contract programming, but I want to show how to make a connection all the way to our web browser. That is, I want to make a user interface for this contract.

I think it's helpful to see how an ethereum-based app is done end-to-end and then we'll go back and learn how to make more sophisticated apps.

To build a UI for our Ethereum app, the key idea is this: our Ethereum node has a JSON API and we will connect our browser to that API.

So the core architecture is that we have an HTML file, which loads JavaScript. And this JavaScript, instead of calling out to a say, "normal", "centralized" server, we'll call to our personally controlled Ethereum node instead.