hbar-kit

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Production notes ​

  • Rate limits. Public Mirror Nodes throttle (HTTP 429). hbar-kit retries with backoff + jitter and honors Retry-After. For sustained volume, self-host or use a commercial provider via baseUrl.
  • Time windows. Always pass after (and ideally before). The range is capped at 7 days; hbar-kit paginates within your window.
  • Idempotency. Settle on transactionId. Treat duplicate explicitly.
  • Network must match. network is required — testnet IDs can't accidentally hit mainnet.
  • Memos are public and non-unique. Correlate by memo + amount + receiver + window. For higher assurance use a per-request receiving account.
  • Confirmation = Mirror Node, not the wallet. Even after Phase 2, always confirm via verification.