Learn how to use web3.js to interact with the blockchain to get data or send ether.
- [Instructor] Web3.js gives us the ability…to interact directly with the Ethereum Blockchain.…There are all kinds of thing we can do.…We can create new accounts, we can send Ether,…we can add signatures to transfers,…get balances from accounts, get transactions,…and transaction IDs.…We can clone and we can interact with contracts,…all kinds of stuff.…We'll get into interacting with the contract…in a future unit, but for now let's look at…some of the basic things we can do…directly with the blockchain to help our dapp.…If you take a look at our dapp,…there's a couple things we can use…that will really help us out.…
Number one is that we wanna make sure…that people enter a valid Ethereum address…when they're sending money to and fro.…So that way we can make sure at least it's a valid address.…Whether or not it's the correct address…is a different story,…but at least it'll be a valid one.…The other thing we're going to do is get a balance.…This allows us to go to an Ethereum address…and retrieve whatever balance of Ether…
- How the Ethereum blockchain differs from bitcoin
- What smart contracts are and how they work
- Creating a smart contract from scratch in Solidity
- Using Truffle to test smart contracts
- Using web3.js to interact with the blockchain
- Deploying resources in Swarm
Skill Level Intermediate
1. Getting Set Up
2. Introduction to DApps and Ethereum
3. Writing a Smart Contract
4. Building a DApp
5. Deploying to the Ethereum network
Deploying resources in Swarm3m 42s
Next steps1m 24s
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