Add timeout and circuit breaker for external blockchain RPC calls

[Smartdevs17]

Context

Blockchain RPC calls need timeout and circuit breaker protection.

Current Limitation

RPC calls have no timeout or circuit breaker.

Expected Outcome

• Configurable timeouts per RPC call
• Circuit breaker for RPC failures
• Fallback RPC providers
• RPC health monitoring

Acceptance Criteria

• Configurable timeouts per RPC call
• Circuit breaker for RPC failures
• Fallback RPC provider support
• RPC health monitoring dashboard
• RPC latency tracking
• RPC error rate monitoring
• RPC failover automation

Technical Scope

• backend/services/shared/ - Shared services
• src/services/walletService.ts - Wallet service
• contracts/ - Contract RPC calls
• backend/services/monitoring/ - Monitoring

[JesseJohn7]

@JesseJohn7 has applied to work on this issue as part of the Stellar Wave Program's 7th wave.

Hi maintainer, I would like to work on this please?

ℹ️ Repo Maintainers: To accept this application, review their application or assign @JesseJohn7 to this issue.

[Kaizer4show]

@Kaizer4show has applied to work on this issue as part of the Stellar Wave Program's 7th wave.

Hi Maintainer! I'm interested in contributing to this task and can ensure timely delivery with clean implementation.

I'll add configurable per-call timeouts and a circuit breaker for RPC failures in backend/services/shared/, wire fallback RPC provider support across src/services/walletService.ts and contracts/, and build RPC health monitoring with latency tracking, error rate monitoring, a health dashboard, and automated failover in backend/services/monitoring/.

Please assign it to me.

ℹ️ Repo Maintainers: To accept this application, review their application or assign @Kaizer4show to this issue.

[menawar]

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

can i work on this

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

[Junman140]

@Junman140 has applied to work on this issue as part of the Stellar Wave Program's 7th wave.

I would want to work on this project because ive being contributing to pi network and stellar for 6 years now and i use mainly typescript, rust and javascript

ℹ️ Repo Maintainers: To accept this application, review their application or assign @Junman140 to this issue.

[OluwapelumiElisha]

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

Hello,

I would like to work on this issue.

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

[Cyberking99]

@Cyberking99 has applied to work on this issue as part of the Stellar Wave Program's 7th wave.

Hello, please can I take this?

ℹ️ Repo Maintainers: To accept this application, review their application or assign @Cyberking99 to this issue.

[drips-wave]

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

🧑‍💻 @menawar: 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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