Responder is an Actix Web trait whose implementations can produce HTTP responses.
Responder is an Actix Web trait that gives implementing types the capability to produce HTTP responses. Request handlers commonly return `impl Responder`. section 3.1.2
Health-check handler
A route can send GET requests for `/health` to an asynchronous handler. The handler returns an `HttpResponse` through `impl Responder`, producing a JSON health message. section 3.1.2
How Rust Servers, Services, and Apps covers it
How deep it goes
Defines the response-producing role and demonstrates one handler, without detailing trait internals or custom implementations.
Examples
Uses a GET `/health` route and a JSON response stating that EzyTutors is alive and kicking.
What it assumes
Assumes familiarity with asynchronous request handlers and routes while illustrating the response role through a zero-parameter handler.
What you can do after
Apply it via Actix Web by writing handlers that return `impl Responder` and construct HTTP responses.
HTTP responseproduces · An HTTP response is a protocol message sent by a server to a client after an HTTP request, containing status information, headers, and optionally a body.
This explainer was generated by Manning's knowledge graph from the text of Rust Servers, Services, and Apps. The section links point to the parts of the book it draws on.
