Troubleshooting
JSON-RPC -32600 Invalid Request: Envelope Validation
Validate the JSON-RPC 2.0 request envelope before it leaves your process so -32600 Invalid Request becomes a code-time impossibility, not a production incident.
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Troubleshooting
JSON-RPC -32700 Parse Error: Diagnosing Malformed Payloads
A deterministic playbook for finding the exact byte that makes a JSON-RPC server return -32700 Parse error, with capture-and-replay evidence and a fill-in results table.
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JSON-RPC Over HTTP, WebSocket, and IPC: Choosing a Transport
Learn how JSON-RPC 2.0 semantics change across HTTP, WebSocket, and IPC transports, and how to choose and combine them for production blockchain applications.
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eth_getLogs Block Range Limits and Safe Chunking
A portable algorithm for reading large EVM log ranges that survives any provider's per-request cap and proves the result is complete.
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Solana getSignaturesForAddress Pagination Deep Dive
Walk a Solana address's signature history without gaps, duplicates, or silent truncation by handling cursors, commitment, and retention correctly.
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JSON-RPC -32603 Internal Error: Causes and Debugging
A deterministic playbook for diagnosing JSON-RPC -32603 internal errors across client, node, and provider layers.
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JSON-RPC Error Object: Decode code, message, data
Learn the exact JSON-RPC 2.0 error object contract and how to classify any RPC failure by code, message, and data.
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RPC Method Not Found (-32601): Namespaces and Endpoint Capabilities
Why the same JSON-RPC call returns -32601 on one endpoint and succeeds on another, and how to probe namespace availability programmatically.
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JSON-RPC id Correlation and Batch Response Ordering
How JSON-RPC 2.0 correlates requests to responses by id, why batch responses may arrive out of order, and how to build a client that never mismatches them.
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JSON-RPC -32602 Invalid Params: Validating RPC Arguments
A practical guide to diagnosing and preventing JSON-RPC -32602 Invalid params errors by validating argument shape, encoding, and client tolerance before requests leave your process.
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