russenger 0.3.1

A Rust library designed to simplify the handling of Facebook Messenger webhook responses.
Documentation 
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43

use std::{collections::HashMap, future::Future, pin::Pin};

use crate::core::{request::Req, response::Res};
use crate::error::Result;

type FutureResult = Pin<Box<dyn Future<Output = Result<()>> + Send>>;

pub struct Router {
    pub(crate) routes: HashMap<String, Box<dyn Fn(Res, Req) -> FutureResult + Send + Sync>>,
}

impl Router {
    #[allow(clippy::new_without_default)]
    pub fn new() -> Self {
        Self {
            routes: HashMap::new(),
        }
    }

    pub fn add<F, Fut>(mut self, path: &str, action: F) -> Self
    where
        F: Fn(Res, Req) -> Fut + 'static + Send + Sync,
        Fut: Future<Output = Result<()>> + Send + 'static,
    {
        let boxed =
            Box::new(move |res: Res, req: Req| -> FutureResult { Box::pin(action(res, req)) });

        self.routes.insert(path.to_owned(), boxed);
        self
    }
}

#[macro_export]
macro_rules! router {
    ( $( ($path:expr, $action:expr) ),* $(,)? ) => {
        {
            russenger::prelude::Router::new()
            $(
                .add($path, $action)
            )*
        }
    };
}