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✨The Graph notes

#graphql #blockchain #web3 #developers

The Graph Concepts

what data can Subgraphs query:

  • historical events
  • state variable
  • view/pure function

The data update mechanism of Subgraphs:

Event-based updates (eventHandlers)
Block-triggered update (blockHandlers)

GraphQL Basic Concepts

How to access blockchain data using subgraph?

  1. Query directly on the playground.

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  1. Querying through curl.
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  1. Querying through typescript.

How to create a subgraph for a contract?

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