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Project	Deployment	Actions	Updated (UTC)
stack-backend	Ready	Preview, Comment	Feb 18, 2026 2:17am
stack-dashboard	Ready	Preview, Comment	Feb 18, 2026 2:17am
stack-demo	Ready	Preview, Comment	Feb 18, 2026 2:17am
stack-docs	Ready	Preview, Comment	Feb 18, 2026 2:17am

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Greptile Summary

Implemented analytics domain override functionality to route analytics and session replay requests to a separate domain (r.stack-auth.com in production) while regular API requests continue to use the standard domain.

Key changes:

• Added optional getAnalyticsBaseUrl configuration to ClientInterfaceOptions
• Created getAnalyticsBaseUrl() method that maps production domain to analytics subdomain
• Updated sendSessionReplayBatch() and sendAnalyticsEventBatch() to use analytics URL override
• Modified sendClientRequest() to accept optional apiUrlOverride parameter for routing flexibility

The implementation correctly handles both production (uses separate analytics domain) and development (uses same domain) environments.

Confidence Score: 5/5

• This PR is safe to merge with no concerns
• The changes are straightforward and well-structured: they add optional analytics domain override functionality without breaking existing behavior. The implementation correctly handles fallback to the regular base URL when no analytics URL is provided, ensuring backward compatibility. All changes are isolated to analytics and session replay requests.
• No files require special attention

Important Files Changed

Flowchart

flowchart TD
    A[Client Request] --> B{Request Type?}
    B -->|Analytics/Replays| C[getAnalyticsApiUrl]
    B -->|Regular API| D[getApiUrl]
    
    C --> E{Environment?}
    E -->|Production| F[r.stack-auth.com/api/v1]
    E -->|Development| G[Regular Base URL/api/v1]
    
    D --> H[Regular Base URL/api/v1]
    
    F --> I[sendClientRequest with apiUrlOverride]
    G --> I
    H --> J[sendClientRequest without override]
    
    I --> K[Execute Request]
    J --> K

_{Last reviewed commit: fb49d11}