© The Author(s), under exclusive license to APress Media, LLC, part of Springer Nature 2022
D. P. BauerGetting Started with Ethereum https://doi.org/10.1007/978-1-4842-8045-4_10

10. Chainlink

Davi Pedro Bauer1  
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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