tsunagiyaNostr Relay Mock Library

Intercept WebSocket to test existing clients without code changes

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Zero-Change Testing

Replaces globalThis.WebSocket to test existing client code as-is

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Mock multiple relays simultaneously with MockPool, each operating independently

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Full NIP-01 implementation, NIP-42 AUTH, NIP-09 deletion, NIP-45 COUNT support

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EventBuilder, FilterBuilder, and assertion functions for efficient test creation

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Works on Deno, Node.js, and Bun. E2E tested with major Nostr libraries

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Pure TypeScript implementation. No additional packages required