Awesome

ndxstr - Nostr indexing node

Bootstrapping Nostr's layer2 with an indexing node.

ndxstr nodes are servers that pull events from multiple known relays, storing them forever-ish and making available to clients via API.

Why

Modern applications may want:

• More advanced querying than currently supported by Nostr relays
• Receiving messages in a batch via API, not one at a time over a websocket
• Fewer expensive cryptographic operations done client-side (e.g. trusting an indexer to validate events)
• To retrieve large amounts of messages quickly+reliably via one API without caring about uptime/featuresets of multiple relays

Stack

• NodeJS
• TypeScript
• Postgres
• REST API

Risks

• Centralization - Need to avoid Infura-ization

Related

• nostr-ts-relay - We reuse a lot of this code
• nostr - Main nostr repo