June 21, 2026 · 6 min read
Retrying RPC Calls: Backoff, Idempotency, Failover
A naive retry loop turns a brief blip into an outage. Here's how to retry RPC calls correctly: exponential backoff with jitter, knowing which calls are safe to retry, and failing over across providers — with copy-paste examples in viem, ethers, and web3.py.
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