Guides Web3 Infrastructure

Web3 Infrastructure Oracles, Indexing, Storage & RPCs

The essential backbone that powers real apps: data feeds, verifiable indexing, decentralized storage, and reliable node access.

⏱ — min read 🧱 Foundations 🧩 Composable Patterns
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1) Oracles (Chainlink, Pyth)

Data Feeds

Price feeds, VRF randomness, automation/keepers, and cross-chain messaging, plus the risk controls that matter.

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2) Indexing & Querying (The Graph)

Subgraphs

Subgraphs, mappings, GraphQL queries, and the decentralized network roles (indexers, curators, delegators).

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3) Storage (IPFS, Arweave, Filecoin)

Content Addressing

Content addressing with CIDs, permanence models, pinning/gateways, and safe NFT metadata practices.

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4) RPCs & Nodes

Access

Node types, JSON-RPC tips, multi-provider reliability, private tx paths, and production monitoring.

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Further Learning

References
  • Oracles: bounds/TWAPs, staleness checks, circuit breakers
  • Indexing: historical snapshots, reorg handling, matchstick tests
  • Storage: content-addressed URIs, pinning SLAs, integrity hashes
  • RPCs: quorum reads, health checks, private orderflow
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