feat: Implement dead letter queue for failed events

[cypriannwokolo2-creator]

Description

Add a dead letter queue (DLQ) for events that fail processing, with retry logic.

Requirements

• Implement DLQ in Redis
• Add retry logic (N attempts)
• Add manual retry interface
• Add metrics for failed events

Acceptance Criteria

• Failed events stored in DLQ
• Retry logic with configurable attempts
• Manual retry interface available
• Metrics tracked

Priority

Medium

[aliyuHabibu]

@aliyuHabibu has applied to work on this issue as part of the Stellar Wave Program's 8th wave.

Hi maintainer please assign this issue to me.

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

[Timmmytunner]

@Timmmytunner has applied to work on this issue as part of the Stellar Wave Program's 8th wave.

Hello Maintainer, I’ve reviewed the issue and understand the requirements. I’m confident I can handle the task effectively and would appreciate the opportunity to work on it.

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

[Akintobidavid]

@Akintobidavid has applied to work on this issue as part of the Stellar Wave Program's 8th wave.

I’ve reviewed the issue and it aligns with my backend and Redis experience. I can implement the Redis DLQ, configurable retry logic, manual retry interface, and failure metrics with proper tests.

Please assign this to me, you won’t be disappointed, thank you.

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

[Baytizz]

@Baytizz has applied to work on this issue as part of the Stellar Wave Program's 8th wave.

I have reviewed the issue and I understand the requirements. I am confident that I can get it fixed perfectly if I get assigned to work on it

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[zillaXBT]

@zillaXBT has applied to work on this issue as part of the Stellar Wave Program's 8th wave.

This looks like a task I can contribute to effectively. I’ve reviewed the details and would appreciate the chance to work on it.

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[webdevayo]

@webdevayo has applied to work on this issue as part of the Stellar Wave Program's 8th wave.

Hi maintainer I have thoroughly read the description to this issue and I can resolve this according to the description required ensuring it meet all the acceptance criteria kindly assign..

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[TechBroAfrica]

@TechBroAfrica has applied to work on this issue as part of the Stellar Wave Program's 8th wave.

Focused on building trust through consistent, meaningful contributions. I approach every issue with curiosity, attention to detail, and a commitment to delivering clean, maintainable, and well-tested solutions. Driven by impact, not just commits, I value clear communication, effective collaboration with maintainers, continuous learning, and delivering meaningful value to every project I contribute to.

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[Morrison26-gif]

@Morrison26-gif has applied to work on this issue as part of the Stellar Wave Program's 8th wave.

Hi , I’ve carefully reviewed this issue and understand what needs to be fixed. I’m confident I can implement a clean solution that meets the acceptance criteria. Kindly consider assigning it to me

ℹ️ Repo Maintainers: To accept this application, review their application or assign @Morrison26-gif to this issue.

[ybmahq]

@ybmahq has applied to work on this issue as part of the Stellar Wave Program's 8th wave.

Hello, I'd like to pick this issue up.

I have hands-on experience with backend development, databases, and API design, as well as frontend work with React and modern CSS. I write tested, maintainable code and enjoy contributing to open source projects.

I've reviewed the issue and I'm confident I can implement a solid solution while following the project's conventions.

Please assign this issue to me, I'd be happy to contribute.

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

[drips-wave]

Congratulations, @ybmahq! 🎉 Your application was accepted by the repo's maintainers, and the issue is due on August 31, 2026.

🧑‍💻 @ybmahq: 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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