008: add WebSocketProvider with eth_subscribe support#315
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008: add WebSocketProvider with eth_subscribe support#315
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Closes #57 |
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- WebSocketProvider extends BaseProvider, works over WebSocket instead of HTTP - Supports all standard JSON-RPC methods (getBalance, getBlock, etc.) - Real-time subscriptions: subscribe/unsubscribe for newHeads, logs, newPendingTransactions - Event-based API with on/off for subscription notifications - Reconnection logic with exponential backoff (3 attempts: 1s, 2s, 4s) - Auto-incrementing request IDs for matching responses - destroy() for clean connection teardown - Uses global WebSocket (Node 21+, browsers), falls back to 'ws' package
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Adds WebSocketProvider for real-time Ethereum subscriptions (newHeads, logs, pendingTransactions). Includes reconnection logic with exponential backoff. Event-based API with on/off. Part of Phase 1 roadmap (WebSocket Provider).