BE-025 — Implement Webhook Management Service

[dDevAhmed]

BE-025 — Implement Webhook Management Service

📚 Overview

The Webhook Management Service enables external systems to subscribe to TruthBounty protocol events in real time. Rather than polling backend APIs, third-party services receive signed HTTP callbacks whenever subscribed events occur.

This service acts as the protocol's outbound integration layer, allowing wallets, analytics platforms, governance dashboards, exchanges, enterprise integrations, AI agents, and automation platforms to react immediately to protocol activity.

Every outbound webhook must be secure, reliable, auditable, and fault tolerant.

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🧠 Background

TruthBounty is designed as an open protocol rather than a closed application.

External services may need to react to events such as:

• claim creation
• verification completion
• dispute initiation
• reward distribution
• governance voting
• treasury movements
• reputation updates

Without a webhook system, every integration would need to repeatedly poll APIs, resulting in:

• unnecessary backend load
• delayed updates
• duplicated polling infrastructure
• inconsistent integrations

The Webhook Management Service provides an event-driven integration mechanism for the protocol ecosystem.

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🎯 Objectives

Implement a secure webhook infrastructure that:

• manages webhook registrations
• validates subscriber ownership
• dispatches signed webhook events
• retries failed deliveries
• records delivery history
• supports filtering
• exposes management APIs
• enables secure third-party integrations

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🧩 Technical Scope

1. Webhook Registration

Allow applications to register webhook endpoints including:

• endpoint URL
• description
• owner
• enabled status
• secret key
• subscribed events

Each webhook must have a unique identifier.

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2. Event Subscriptions

Support subscriptions for events including:

• claim.created
• claim.updated
• verification.started
• verification.completed
• dispute.created
• dispute.resolved
• reward.distributed
• governance.created
• governance.executed
• reputation.updated
• treasury.updated
• staking.updated

Support multiple subscriptions per webhook.

---

3. Secure Delivery

Implement secure delivery using:

• HTTPS only
• HMAC request signatures
• timestamp headers
• nonce protection
• request identifiers

Receivers must be able to verify webhook authenticity.

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4. Retry System

Support automatic retries using:

• exponential backoff
• configurable retry limits
• dead-letter queue
• failure logging
• retry scheduling

Permanent failures should disable unhealthy endpoints after repeated unsuccessful attempts.

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5. Delivery History

Store:

• request payload
• response status
• latency
• retry count
• timestamps
• endpoint
• failure reason

Expose delivery history via management APIs.

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6. Event Filtering

Allow subscribers to filter deliveries by:

• event type
• protocol module
• claim ID
• user ID
• severity
• governance proposal
• network

Reduce unnecessary webhook traffic.

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7. Secret Rotation

Implement secure secret management supporting:

• secret regeneration
• secret expiration
• dual-secret rotation
• revocation
• audit logging

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8. Monitoring

Expose metrics including:

• successful deliveries
• failed deliveries
• retry counts
• average latency
• webhook throughput
• disabled endpoints
• active subscriptions

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9. Performance

Optimise for:

• high concurrency
• asynchronous processing
• horizontal scaling
• low latency
• reliable retries
• efficient batching

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10. Future Extensibility

Design the service to support:

• webhook versioning
• GraphQL subscriptions
• event streaming
• Kafka integration
• partner integrations
• enterprise connectors

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✅ Acceptance Criteria

• Webhooks can be registered.
• Events are delivered securely.
• Request signatures validate correctly.
• Retry logic functions correctly.
• Delivery history is stored.
• Monitoring metrics are available.
• Integration tests pass.

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🧪 Testing Requirements

Implement tests covering:

• webhook registration
• endpoint validation
• secure signatures
• retry logic
• failed delivery handling
• secret rotation
• event filtering
• concurrent delivery
• monitoring metrics

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📚 Documentation

Update:

• Backend API Documentation
• Webhook Integration Guide
• Security Documentation
• OpenAPI Specification
• Operations Manual
• Developer Guide

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🔗 Dependencies

Depends on:

• BE-018 — Implement Event Bus & Domain Event Processing
• BE-022 — Implement Audit Logging & Compliance API
• BE-024 — Implement Notification Delivery Service

Blocks:

• Enterprise Integrations
• AI Agents
• Analytics Platforms
• Mobile Applications
• Partner APIs
• Automation Workflows

---

🏷 Labels

• backend
• integrations
• architecture
• protocol-critical
• complexity-medium
• stellar-wave

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📊 Complexity

Medium

The Webhook Management Service provides the event-driven integration layer of TruthBounty, enabling secure, scalable, and reliable communication with external systems while maintaining protocol security and operational visibility.

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⏱ Estimated Effort

5–7 days

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🚀 Definition of Done

• Webhook management implemented.
• Secure event delivery operational.
• Retry mechanisms functioning.
• Secret rotation supported.
• Delivery history available.
• Monitoring metrics exposed.
• Tests passing.
• Documentation updated.
• Ready for integration with Enterprise Integrations, AI Agents, Analytics Platforms, Mobile Applications, Partner APIs, and Automation Workflows.

[aojomo]

@aojomo has applied to work on this issue as part of the Stellar Wave Program's 7th wave.

Hi maintainer, Please i would like to work on this issue

ℹ️ Repo Maintainers: To accept this application, review their application or assign @aojomo to this issue.

[Netty-kun]

@Netty-kun has applied to work on this issue as part of the Stellar Wave Program's 7th wave.

Hello Maintainer,
I'd like to work on this issue. After reviewing the requirements, I have a clear understanding of the expected implementation and a plan to address it. I have experience building production-ready applications and have handled similar fixes before.
If assigned, I'll start right away, keep you updated on my progress, and submit a clean, well-tested PR as quickly as possible, potentially within an hour, depending on when the issue is assigned.

ℹ️ Repo Maintainers: To accept this application, review their application or assign @Netty-kun to this issue.

[spartan124]

@spartan124 has applied to work on this issue as part of the Stellar Wave Program's 7th wave.

Hi maintainer, I would love to work on this. I have implemeted similar solutions on several projects and I can do same here cleanly and efficiently. Allow me the opportunity to contribute to your project while following contribution guidelines for your project. Kindly assign.

Resolution in 2hrs max.

ℹ️ Repo Maintainers: To accept this application, review their application or assign @spartan124 to this issue.

[drips-wave]

Congratulations, @aojomo! 🎉 Your application was accepted by the repo's maintainers, and the issue is due on July 30, 2026.

🧑‍💻 @aojomo: Please resolve the issue such that the repo's maintainers have enough time to review your contribution before the due date. You'll earn Points for completing the issue on-time, which will make you eligible for a share of the Stellar Wave Program's reward pool.

Warning

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