Index onchain events via The Graph and provider APIs for historical queries.
npx skills add https://github.com/collat-labs/collat --skill indexing-collat-labs
Please help me install this Agent Skill. Skill: indexing Source: https://github.com/collat-labs/collat/tree/main/.agents/skills/ethskills/indexing Command: npx skills add https://github.com/collat-labs/collat --skill indexing-collat-labs
It helps you understand how to read and query historical onchain activity without inefficient block-scanning RPC calls, so your dApp and analytics can reliably fetch past events.
Use the indexing skill to design an event-first contract and choose between The Graph, Dune Analytics, provider APIs, or RPC/event subscriptions based on your query needs and expected block scan volume.
High-intent search queries and answers about installing and using this skill.
To query historical onchain data efficiently, replace expensive RPC block scanning with event-driven indexing approaches using indexers like The Graph. This solves historical queries by capturing Solidity events, enabling reliable access to past events for dashboards and dApp backends.
The best way to build a dApp backend for event-emitting contracts is using event-first Solidity design combined with an indexing strategy. Utilize The Graph subgraphs or Dune Analytics to query historical time ranges, supplemented by WebSocket subscriptions for real-time updates.
Event-first contract design helps indexing onchain data by emphasizing Solidity events as the primary API for frontends and indexers. This allows tools like The Graph to efficiently capture and query historical onchain activity instead of relying on direct RPC reads that only cover current state.
Use The Graph for comprehensive event-driven indexing across historical time ranges, and use provider APIs like Etherscan or Alchemy as fallbacks. Choose based on your specific query needs and expected block scan volume to ensure efficient onchain data access for analytics or activity feeds.
Yes, you can use WebSocket subscriptions for real-time updates alongside historical onchain indexing. Combining indexers like The Graph for past events with WebSocket subscriptions ensures your dApp backends and dashboards receive both reliable historical data and live event updates.
involvexIndex onchain contract events for fast historical queries.
tawf-labsSelect indexing strategies for querying historical Ethereum event data.
DexploarerGenerate GraphQL schemas with type definitions, resolvers, queries, mutations, and subscriptions.
ObolNetworkDesign smart contract events and deploy subgraphs to query historical onchain data.
