graph LR
Django_Application_Monitored_["Django Application (Monitored)"]
PrometheusAppConfig["PrometheusAppConfig"]
PrometheusMiddleware["PrometheusMiddleware"]
Database_Backend_Wrappers["Database Backend Wrappers"]
Cache_Backend_Wrappers["Cache Backend Wrappers"]
ORM_Model_Instrumentation["ORM Model Instrumentation"]
Metrics_Exporter["Metrics Exporter"]
prometheus_client_Library["prometheus_client Library"]
Django_Application_Monitored_ -- "activates" --> PrometheusAppConfig
Django_Application_Monitored_ -- "invokes" --> PrometheusMiddleware
Django_Application_Monitored_ -- "configures" --> Database_Backend_Wrappers
Django_Application_Monitored_ -- "configures" --> Cache_Backend_Wrappers
Django_Application_Monitored_ -- "integrates" --> ORM_Model_Instrumentation
PrometheusAppConfig -- "initializes and registers with" --> prometheus_client_Library
PrometheusMiddleware -- "updates metrics in" --> prometheus_client_Library
Database_Backend_Wrappers -- "records metrics in" --> prometheus_client_Library
Cache_Backend_Wrappers -- "records metrics in" --> prometheus_client_Library
ORM_Model_Instrumentation -- "updates metrics in" --> prometheus_client_Library
Metrics_Exporter -- "queries" --> prometheus_client_Library
click Django_Application_Monitored_ href "https://github.com/CodeBoarding/GeneratedOnBoardings/blob/main/django-prometheus/Django_Application_Monitored_.md" "Details"
The django-prometheus subsystem integrates Prometheus monitoring capabilities into a Django application. It operates by instrumenting various aspects of the Django Application (Monitored), including HTTP requests, database queries, cache operations, and ORM interactions. The PrometheusAppConfig initializes the monitoring setup, while specialized wrappers like PrometheusMiddleware, Database Backend Wrappers, Cache Backend Wrappers, and ORM Model Instrumentation collect metrics from their respective domains. All collected metrics are managed and exposed through the prometheus_client Library, an external dependency, and made available for scraping by Prometheus servers via the Metrics Exporter component.
Django Application (Monitored) [Expand]
The user's core Django application, which is the primary subject of monitoring. It provides the operational context (HTTP requests, database queries, cache operations, ORM interactions) that django-prometheus instruments. As this is the user's application and not part of the django-prometheus codebase, no direct source code reference is provided from within this project.
Related Classes/Methods: None
Manages the initialization and setup of the django-prometheus subsystem within the Django Application (Monitored). It registers default metrics and ensures monitoring components are properly configured upon application startup.
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Intercepts HTTP requests and responses within the Django Application (Monitored)'s request-response cycle. It collects web traffic metrics such as request duration, status codes, and request counts.
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Replaces Django's standard database backends within the Django Application (Monitored) to instrument database queries. It collects metrics like query counts and execution durations for various database operations.
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Wraps Django's cache backends within the Django Application (Monitored) to instrument cache operations. It collects metrics such as cache hits, misses, sets, and gets.
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Provides mechanisms (e.g., mixins) to collect metrics related to Django ORM operations (creation, updates, deletions) on models defined within the Django Application (Monitored).
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Responsible for exposing all collected Prometheus metrics from the Django Application (Monitored) via a dedicated /metrics HTTP endpoint, making them available for Prometheus servers to scrape.
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An integral external dependency that provides the fundamental API for defining, registering, collecting, and exposing Prometheus metrics. All django-prometheus instrumentation components within the Django Application (Monitored) interact with this library. As an external library, its source code is not part of the django-prometheus project's codebase.
Related Classes/Methods: None