18 lines
806 B
Markdown
18 lines
806 B
Markdown
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# Durable Nonce
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[中文](README_CN.md)
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Shows how to fetch a durable nonce and attach it to a PumpFun transaction triggered by a `sol-parser-sdk` gRPC event.
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> This is a live-transaction template. Set `PRIVATE_KEY`, replace `use_your_nonce_account_here`, and configure RPC and gRPC before running. The nonce authority must match the signer.
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```bash
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export GRPC_ENDPOINT=https://your-yellowstone.example
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export GRPC_AUTH_TOKEN=optional-token
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cargo run --package nonce_cache
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```
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Do not set both a recent blockhash and a durable nonce in new code; use `SimpleBuyParams::with_durable_nonce`. Refresh nonce state immediately before construction, and never reuse consumed nonce state. A nonce extends transaction validity but does not preserve quote freshness.
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See [Nonce Cache](../../docs/NONCE_CACHE.md).
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