Building GraphQL APIs on Ethereum
summary
Explains how to use The Graph protocol to build GraphQL APIs over Ethereum and IPFS by scaffolding with the Graph CLI, defining a GraphQL schema with @entity and @derivedFrom, deploying via graph deploy, and testing in the Graph Explorer. Demonstrates a working subgraph for the Foundation NFT marketplace that returns IPFS content URIs and can be queried by standard GraphQL clients. Claims a decentralized indexing marketplace serving over 1 billion queries per day and links to a building a subgraph workshop.
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