http_provider_macro/
lib.rs

1//! Generate HTTP client methods from endpoint definitions.
2//!
3//! ```ignore
4//! use http_provider_macro::api_client;
5//! use serde::{Deserialize, Serialize};
6//!
7//! #[derive(Serialize, Deserialize)]
8//! struct User {
9//!     id: u32,
10//!     name: String,
11//! }
12//!
13//! api_client!(
14//!     UserApi,
15//!     {
16//!         {
17//!             path: "/users",
18//!             method: GET,
19//!             res: Vec<User>,
20//!         },
21//!         {
22//!             path: "/users/{id}",
23//!             method: GET,
24//!             path_params: UserPath,
25//!             res: User,
26//!         }
27//!     }
28//! );
29//!
30//! #[derive(Serialize)]
31//! struct UserPath {
32//!     id: u32,
33//! }
34//!
35//! // Usage
36//! let client = UserApi::new(reqwest::Url::parse("https://api.example.com")?, Some(30));
37//! let users = client.get_users().await?;
38//! let user = client.get_users_by_id(&UserPath { id: 1 }).await?;
39//! ```
40
41extern crate proc_macro;
42
43use crate::expanders::ApiClientExpander;
44use crate::input::ApiClientInput;
45use syn::parse_macro_input;
46
47mod error;
48mod expanders;
49mod input;
50
51fn expand_macro(input: proc_macro::TokenStream) -> proc_macro::TokenStream {
52    let input = parse_macro_input!(input as ApiClientInput);
53    match ApiClientExpander::new(input).expand() {
54        Ok(tokens) => tokens.into(),
55        Err(err) => err.into_compile_error().into(),
56    }
57}
58
59#[proc_macro]
60pub fn api_client(input: proc_macro::TokenStream) -> proc_macro::TokenStream {
61    expand_macro(input)
62}
63
64#[proc_macro]
65pub fn http_provider(input: proc_macro::TokenStream) -> proc_macro::TokenStream {
66    expand_macro(input)
67}
http_provider_macro/lib.rs

http_provider_macro/
lib.rs
