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Tutorials

Querying full and archive EVM nodes with Python

Whenever we need to query data from the blockchain, we fetch it from a node. An archive node differs from a full node since the first holds the entire history of network transactions. Thus, some queries for older block transactions cannot be fetched easily on a full node. In this tutorial, we will programmatically fetch data from the blockchain, switching between full and archive nodes when necessary.

Bastian Simpertigue
September 22, 2022

Tutorials

Using Chainlink data feeds with Foundry

Chainlink is one of the most popular decentralized oracles in DeFi today, while Foundry is an up and coming smart contract development framework that promises blazing fast speeds. Learn a bit about both in this tutorial by deploying a chainlink smart contract using Foundry.

Priyank Gupta
September 8, 2022

Tutorials

Querying full and archive EVM nodes with JavaScript

Whenever we need to query data from the blockchain, we fetch it from a node. An archive node differs from a full node since the first holds the entire history of network transactions. Thus, some queries for older block transactions cannot be fetched easily on a full node. In this tutorial, we will programmatically fetch data from the blockchain, switching between full and archive nodes when necessary.

Bastian Simpertigue
August 24, 2022
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