rumtk_web/api/
mod.rs

1/*
2 * rumtk attempts to implement HL7 and medical protocols for interoperability in medicine.
3 * This toolkit aims to be reliable, simple, performant, and standards compliant.
4 * Copyright (C) 2025  Luis M. Santos, M.D.
5 * Copyright (C) 2025  Nick Stephenson
6 * Copyright (C) 2025  Ethan Dixon
7 * Copyright (C) 2025  MedicalMasses L.L.C.
8 *
9 * This library is free software; you can redistribute it and/or
10 * modify it under the terms of the GNU Lesser General Public
11 * License as published by the Free Software Foundation; either
12 * version 2.1 of the License, or (at your option) any later version.
13 *
14 * This library is distributed in the hope that it will be useful,
15 * but WITHOUT ANY WARRANTY; without even the implied warranty of
16 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
17 * Lesser General Public License for more details.
18 *
19 * You should have received a copy of the GNU Lesser General Public
20 * License along with this library; if not, write to the Free Software
21 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301  USA
22 */
23use crate::utils::APIFunction;
24use crate::{APIPath, FormData, HTMLResult, RUMWebData, SharedAppState};
25use rumtk_core::cache::{new_cache, LazyRUMCache, LazyRUMCacheValue};
26use rumtk_core::strings::{rumtk_format, RUMString};
27use rumtk_core::{rumtk_cache_get, rumtk_cache_push};
28
29pub type APICache = LazyRUMCache<RUMString, APIFunction>;
30pub type APIItem<'a> = (&'a str, APIFunction);
31pub type UserAPIEndpoints<'a> = Vec<APIItem<'a>>;
32pub type APICacheItem = LazyRUMCacheValue<APIFunction>;
33
34static mut API_CACHE: APICache = new_cache();
35const DEFAULT_API_HANDLER: APIFunction =
36    |path: APIPath, params: RUMWebData, form: FormData, state: SharedAppState| -> HTMLResult {
37        Err(rumtk_format!(
38            "No handler registered for API endpoint => {}",
39            path
40        ))
41    };
42
43pub fn register_api_endpoint(name: &str, api_handler: APIFunction) -> APICacheItem {
44    let key = RUMString::from(name);
45    let r = rumtk_cache_push!(&raw mut API_CACHE, &key, &api_handler);
46
47    println!(
48        "  ➡ Registered api endpoint {} => api function [{:?}]",
49        name, &api_handler
50    );
51    r
52}
53
54pub fn get_endpoint(name: &str) -> APICacheItem {
55    rumtk_cache_get!(
56        &raw mut API_CACHE,
57        &RUMString::from(name),
58        get_default_api_handler()
59    )
60}
61
62pub fn get_default_api_handler() -> &'static APIFunction {
63    &DEFAULT_API_HANDLER
64}
65
66pub fn init_endpoints(user_components: &UserAPIEndpoints) {
67    println!("🌩 Registering API Endpoints! 🌩");
68    /* Init any user prescribed components */
69    for (name, value) in user_components {
70        let _ = register_api_endpoint(name, *value);
71    }
72    println!("🌩 ~~~~~~~~~~~~~~~~~~~~~~ 🌩");
73}
74
75#[macro_export]
76macro_rules! rumtk_web_register_api {
77    ( $key:expr, $fxn:expr ) => {{
78        use $crate::api::register_api_endpoint;
79        register_api_endpoint($key, $fxn)
80    }};
81}
82
83#[macro_export]
84macro_rules! rumtk_web_get_api_endpoint {
85    ( $key:expr ) => {{
86        use $crate::api::get_endpoint;
87        get_endpoint($key)
88    }};
89}
90
91#[macro_export]
92macro_rules! rumtk_web_init_api_endpoints {
93    ( $pages:expr ) => {{
94        use $crate::api::init_endpoints;
95        init_endpoints($pages)
96    }};
97}