40 lines
2.0 KiB
Plaintext
40 lines
2.0 KiB
Plaintext
@startuml
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!include https://raw.githubusercontent.com/plantuml-stdlib/C4-PlantUML/master/C4_Component.puml
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LAYOUT_TOP_DOWN()
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title LOTTY Backend - C4 Component
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Container_Boundary(api, "Backend Container (Django + Django Ninja)") {
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Component(decision_endpoint, "Decision Endpoint", "api/v1/decision/endpoints.py", "POST /api/v1/decide")
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Component(decision_service, "Decision Service", "apps/decision/services.py", "Flag lookup, targeting DSL, participation limits, hash-based variant assignment")
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Component(events_endpoint, "Events Endpoint", "api/v1/events/endpoints.py", "POST /api/v1/events")
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Component(events_service, "Events Service", "apps/events/services.py", "Validation, dedup, exposure/conversion attribution, pending promotion")
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Component(reports_endpoint, "Reports Endpoint", "api/v1/reports/endpoints.py", "GET /reports/{experiment_id}")
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Component(reports_service, "Reports Service", "apps/reports/services.py", "Per-variant metric calculation (ratio, count, average, percentile)")
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Component(guardrails_service, "Guardrails Service", "apps/guardrails/services.py", "Threshold checks, auto pause/rollback")
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}
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ContainerDb(db, "Relational DB", "PostgreSQL / SQLite", "Flags, experiments, variants, decisions, events, exposures")
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Container(cache, "Cache", "Valkey / LocMem", "Flag and active experiment cache")
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Container(worker, "Celery Beat", "Celery", "Periodic guardrail checks (60s)")
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Rel(decision_endpoint, decision_service, "Delegates")
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Rel(decision_service, cache, "Reads cached flag / active experiment")
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Rel(decision_service, db, "Reads variants, writes Decision")
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Rel(events_endpoint, events_service, "Delegates batch")
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Rel(events_service, db, "Writes Event / Exposure / PendingEvent")
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Rel(reports_endpoint, reports_service, "Builds report")
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Rel(reports_service, db, "Reads attributed events / exposures")
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Rel(guardrails_service, reports_service, "Uses metric calculations")
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Rel(guardrails_service, db, "Writes triggers, updates experiment status")
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Rel(worker, guardrails_service, "Periodic check_all")
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@enduml
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