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webhooks-and-event-processing

Enforce idempotent processing and ordered delivery for Solana webhook streams.

3|Updated Jan 22, 2026
Search Tags:#idempotent#webhooks#retries#dedupe#Solana#queuing#DLQ
One-click install
npx skills add https://github.com/SanctifiedOps/solana-skills --skill webhooks-and-event-processing
Or copy as Structured Prompt for Agent▼
Please help me install this Agent Skill.
Skill: webhooks-and-event-processing
Source: https://github.com/SanctifiedOps/solana-skills/tree/main/skills/infra/webhooks-and-event-processing
Command: npx skills add https://github.com/SanctifiedOps/solana-skills --skill webhooks-and-event-processing

SYSTEM DOCUMENTATION & REQUIREMENTS

What problem does it solve?

Unreliable Solana webhook streams and activity feeds are prone to duplicates, out-of-order processing, and data loss. This Skill enforces idempotent processing, strict ordering, and reliable retries to ensure every event is processed exactly once and in the correct sequence.

Core Features & Use Cases

  • Idempotent processing: Safe replay of events by design.
  • Dedupe and offset tracking: Use composite keys (slot+signature+index) to prevent duplicates and handle reorgs.
  • Ordered processing with backpressure: Process events by slot then index while handling bursts with a queue and backpressure.
  • Retries and DLQ: Exponential backoff with a dead-letter queue for poison messages and alerting.
  • Backfill and catch-up: Reconcile missing slots on startup to keep state in sync.
  • Monitoring: Metrics for queue depth, latency, failure rate; alerting rules.

Quick Start

Set up a webhook ingestion service that validates signatures, enqueues messages with slot, signature, and index; implement dedupe by slot:signature:index; configure a queue and DLQ; run a test feed to verify end-to-end processing.

Frequently Asked Questions about webhooks-and-event-processing

High-intent search queries and answers about installing and using this skill.

FAQPage Schema
How do I handle duplicate Solana webhook events and ensure idempotent processing?▼

Idempotent processing prevents duplicate Solana webhook events by using composite keys like slot+signature+index to dedupe streams. This enables safe replay of events while maintaining strict ordering and offset tracking to handle chain reorgs correctly.

What is the best way to manage out-of-order Solana webhook streams and backpressure?▼

Managing out-of-order Solana webhook streams requires a queue-based workflow that processes events by slot then index. This approach handles high-volume bursts with backpressure while maintaining strict ordering and reliable delivery.

Can I use this idempotent webhook pipeline with Helius or Dialect RPC listeners?▼

Yes, this pipeline applies to high-volume RPC and webhook ingestion from Helius, Dialect, or custom Solana listeners. It validates signatures and enqueues messages with slot, signature, and index data for reliable processing.

Why does my Solana webhook stream lose events during high-volume ingestion?▼

Solana webhook streams lose events during high-volume ingestion due to missing backfill and catch-up mechanisms. Reconciling missing slots on startup and tracking offsets with checkpoints keeps state in sync and prevents data loss.

How do I monitor queue depth and failure rates for Solana webhook processing?▼

Monitoring queue depth, latency, and failure rates for Solana webhook processing requires built-in metrics and alerting rules. These tools track pipeline health, identify poison messages in the DLQ, and ensure end-to-end event delivery.

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