book

Getting Started with Ethereum: A Step-by-Step Guide to Becoming a Blockchain Developer

Name: Getting Started with Ethereum: A Step-by-Step Guide to Becoming a Blockchain Developer
Author: Davi Pedro Bauer
ISBN: 9781484280454

by Davi Pedro Bauer

July 2022

Beginner to intermediate

141 pages

2h 9m

English

Apress

Content preview from Getting Started with Ethereum: A Step-by-Step Guide to Becoming a Blockchain Developer

D. P. BauerGetting Started with Ethereum https://doi.org/10.1007/978-1-4842-8045-4_10

10. Chainlink

Davi Pedro Bauer¹

(1)

Campo Bom, Rio Grande do Sul, Brazil

Chainlink¹ is a decentralized network of nodes that uses oracles to transfer data and information from off-blockchain sources to on-blockchain smart contracts. In this chapter, you will learn how to use the ETH/USD price feed on the Kovan testnet to access the most recent cryptocurrency price inside smart contracts.

At the end of this chapter, you will be able to do the following:

Create a simple smart contact for price consumption
Set up an Infura project
Configure the private key to sign transactions ...

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Getting Started with Ethereum: A Step-by-Step Guide to Becoming a Blockchain Developer

by Davi Pedro Bauer

10. Chainlink

Become an O’Reilly member and get unlimited access to this title plus top books and audiobooks from O’Reilly and nearly 200 top publishers, thousands of courses curated by job role, 150+ live events each month,
and much more.