11 releases (5 breaking)
0.6.2 | Aug 4, 2021 |
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0.6.0 | Jul 18, 2021 |
#2296 in Web programming
34 downloads per month
22KB
155 lines
A simple request router
Designed to be wasm
compatible, simple and small.
extern crate alloc;
use alloc::borrow::Cow;
use mimeograph_router::*;
/// A request could be an `http` crate Request, or a CloudFlare
/// worker Request. Here is a very simple request:
pub struct Request {
path: String,
method: String,
}
/// To use the router, implement `mimeograph_request::Request`
/// for the Request type that you are working with.
impl mimeograph_request::Request for Request {
fn path(&self) -> Cow<'_, str> {
Cow::Borrowed(&self.path)
}
fn method(&self) -> Cow<'_, str> {
Cow::Borrowed(&self.method)
}
}
/// A dummy Response type
pub struct Response {
status: u32,
body: String,
}
type Result<T> = core::result::Result<T, Box<dyn std::error::Error>>;
#[get("/hello")]
fn get_hello(request: Request) -> Result<Response> {
Ok(Response {
status: 200,
body: String::from("world"),
})
}
#[get("/greet/:name")]
fn get_greeting(request: Request, name: &str) -> Result<Response> {
Ok(Response {
status: 200,
body: format!("Hello, {}!", name),
})
}
// Wildcard segment
#[get("/foo/*/baz/:name")]
fn foo_baz_name(request: Request, name: &str) -> Result<Response> {
Ok(Response {
status: 200,
body: format!("Hello, {}!", name),
})
}
// Glob, matches everything after /page/, ie: /page/hello/world
#[get("/page/**")]
fn page_glob(request: Request) -> Result<Response> {
Ok(Response {
status: 200,
body: String::from("Hello, World"),
})
}
/// All verbs are supported:
/// get, put, post, delete, head, patch, options
#[post("/images")]
fn post_image(request: Request) -> Result<Response> {
// handle request
unimplemented!()
}
/// The entrypoint for handling a request
pub fn handle_request(request: Request) -> Response {
// router![] creates a closure that iterates through
// the handlers until one is matched, then it returns
// the matched handler's response
let routes = routes![get_hello, get_greeting, foo_baz_name, page_glob];
match router(request, routes) {
// Matched a route
RouterResult::Handled(Ok(resp)) => resp,
// There was an error
RouterResult::Handled(Err(_err)) => todo!(),
// No routes matched, request is passed back
RouterResult::NotHandled(_request) => todo!(),
}
}
Dependencies
~2MB
~43K SLoC