graph LR
Sanic_Application_Core["Sanic Application Core"]
HTTP_Protocol_I_O["HTTP Protocol & I/O"]
Request_Routing_Dispatch["Request Routing & Dispatch"]
Server_Runtime_Process_Management["Server Runtime & Process Management"]
Extensibility_Event_Management["Extensibility & Event Management"]
Sanic_Application_Core -- "Initializes & Owns" --> Request_Routing_Dispatch
Sanic_Application_Core -- "Initializes & Owns" --> Extensibility_Event_Management
Sanic_Application_Core -- "Initializes & Owns" --> Server_Runtime_Process_Management
Sanic_Application_Core -- "Directs incoming requests" --> HTTP_Protocol_I_O
Sanic_Application_Core -- "Directs incoming requests" --> Request_Routing_Dispatch
HTTP_Protocol_I_O -- "Provides parsed Request objects" --> Sanic_Application_Core
Sanic_Application_Core -- "Receives HTTPResponse objects" --> HTTP_Protocol_I_O
HTTP_Protocol_I_O -- "Interacts directly with" --> Server_Runtime_Process_Management
Sanic_Application_Core -- "Receives route and blueprint definitions from" --> Request_Routing_Dispatch
Request_Routing_Dispatch -- "Determines and returns the correct handler function to" --> Sanic_Application_Core
Server_Runtime_Process_Management -- "Initiates the server startup and shutdown processes for" --> Sanic_Application_Core
Server_Runtime_Process_Management -- "Delegates network I/O to" --> HTTP_Protocol_I_O
Sanic_Application_Core -- "Receives middleware and listener registrations from" --> Extensibility_Event_Management
Extensibility_Event_Management -- "Intercepts requests and responses from" --> Sanic_Application_Core
click HTTP_Protocol_I_O href "https://github.com/CodeBoarding/GeneratedOnBoardings/blob/main//sanic/HTTP_Protocol_I_O.md" "Details"
click Request_Routing_Dispatch href "https://github.com/CodeBoarding/GeneratedOnBoardings/blob/main//sanic/Request_Routing_Dispatch.md" "Details"
click Extensibility_Event_Management href "https://github.com/CodeBoarding/GeneratedOnBoardings/blob/main//sanic/Extensibility_Event_Management.md" "Details"
Sanic's architecture is designed for high performance and extensibility, built around an asynchronous core. The framework can be broken down into five fundamental components that orchestrate the entire request-response lifecycle and application management.
The central orchestrator of the Sanic application. It initializes, configures, and manages the entire application lifecycle, acting as the primary interface for developers to define routes, middleware, listeners, and manage application-wide settings. It holds the core state and configuration.
Related Classes/Methods:
Handles the low-level details of HTTP protocol implementation. It parses incoming raw bytes into structured Request objects and serializes HTTPResponse objects back into raw bytes for network transmission. This component manages HTTP headers, cookies, and the underlying network communication.
Related Classes/Methods:
sanic/request/types.py(1:1)sanic/response/types.py(1:1)sanic/http/http1.py(1:1)sanic/http/http3.py(1:1)sanic/cookies/request.py(1:1)sanic/cookies/response.py(1:1)sanic/headers.py(1:1)sanic/server/protocols/http_protocol.py(1:1)
Maps incoming HTTP requests (based on URL path, HTTP method, and potentially host) to the appropriate handler functions (endpoints). It provides mechanisms for organizing routes into modular Blueprints and for generating URLs from view names.
Related Classes/Methods:
sanic/router.py(1:1)sanic/blueprints.py(1:1)sanic/mixins/routes.py(1:1)sanic/views.py(1:1)sanic/blueprint_group.py(1:1)
Handles the actual execution and scaling of the Sanic application. This includes starting and stopping the HTTP server, managing multiple worker processes for concurrency, and providing auto-reloading capabilities during development to enhance developer experience.
Related Classes/Methods:
sanic/server/runners.py(1:1)sanic/server/async_server.py(1:1)sanic/worker/manager.py(1:1)sanic/worker/reloader.py(1:1)sanic/worker/process.py(1:1)sanic/worker/serve.py(1:1)
Provides a flexible and extensible mechanism for injecting custom logic into the request/response processing pipeline (middleware) and for enabling decoupled communication between different parts of the application through a publish-subscribe model (signals and listeners).
Related Classes/Methods: