restless-web 0.1.1

Back-end framework inspired by express.js
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
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66

use crate::request::Req;
use crate::response::Res;
use derivative::Derivative;

#[derive(Debug)]
pub enum PathItemType {
    Static,
    Dynamic,
}

#[derive(Debug)]
pub struct PathItem<'a> {
    pub r#type: PathItemType,
    pub value: &'a str,
}

impl PathItem<'_> {
    pub fn new(value: &str, r#type: PathItemType) -> PathItem {
        PathItem { value, r#type }
    }
}

pub type RouteCallback = fn(Req, Res) -> Res;

#[derive(Derivative)]
#[derivative(Debug)]
pub struct Route<'a> {
    pub paths: Vec<PathItem<'a>>,
    pub method: Option<&'a str>,
    #[derivative(Debug = "ignore")]
    pub callback: RouteCallback,
}

impl Route<'_> {
    pub fn new<'a>(path: &'a str, callback: RouteCallback, method: Option<&'a str>) -> Route<'a> {
        Route {
            paths: Route::parse_path(path),
            method,
            callback,
        }
    }

    fn parse_path(path: &str) -> Vec<PathItem> {
        if !path.starts_with('/') {
            panic!("Path {} should starts with /", path)
        };

        match path {
            "/" => {
                vec![PathItem::new("/", PathItemType::Static)]
            }
            _ => path
                .split('/')
                .map(|path_part| {
                    let path_type = if path_part.starts_with(':') {
                        PathItemType::Dynamic
                    } else {
                        PathItemType::Static
                    };

                    PathItem::new(path_part, path_type)
                })
                .collect(),
        }
    }
}