hypers 0.1.0

HTTP Request URL Parameters Syntax

⚡️ Quick Start

use hypers::prelude::*;
use std::time::Instant;

#[derive(Serialize, Deserialize)]
pub struct User {
    pub id: Option<u32>,
    pub name: Option<String>,
    pub age: Option<u16>,
}

#[derive(Serialize, Deserialize)]
pub struct QueryParams {
    pub id: Option<u32>,
    pub name: Option<String>,
}

pub async fn create(mut req: Request) -> impl Responder {
    let user = req.parse::<User>().await?;
    /*
        ......
    */
    Ok::<_, Error>((200, Json(user)))
}

pub async fn update(mut req: Request) -> impl Responder {
    let user = req.parse::<User>().await?;
    let id = req.param::<&str>("id");
    println!("id = {:?}", id);
    /*
       .....
    */
    Ok::<_, Error>((200, Json(user)))
}

// Url Query Params
pub async fn query(req: Request) -> impl Responder {
    let query_params = req.query::<QueryParams>()?;
    /*
       .....
    */
    Ok::<_, Error>((200, Form(query_params)))
}

// Url Path Params
pub async fn delete(req: Request) -> impl Responder {
    let id = req.param::<u32>("id")?;
    let name = req.param::<String>("name")?;
    /*
       .....
    */
    Some((200, format!("id = {}, name = {}", id, name)))
}

pub async fn multipart_form_data(mut req: Request) -> impl Responder {
    let file = req.file("file").await?;
    let file_name = file.name()?;
    let file_name = file_name.to_string();

    let img = req.files("imgs").await?;
    let imgs_name = img
        .iter()
        .map(|m| m.name().unwrap().to_string())
        .collect::<Vec<String>>()
        .join(",");

    let name = req.form::<String>("name").await?;

    Some((
        200,
        format!(
            "file_name = {}, imgs_name = {}, name = {}",
            file_name, imgs_name, name
        ),
    ))
}

pub async fn parse_header(req: Request) -> impl Responder {
    let host = req.header::<String>("host")?;
    let user_agent = req.header::<String>("user-agent")?;
    let accept: String = req.header("accept")?;
    Some((
        200,
        format!(
            "host = {}\n user_agent = {}\n accept = {}",
            host, user_agent, accept
        ),
    ))
}

// Websocket  ws://127.0.0.1:7878/hello/ws  http://www.jsons.cn/websocket/
pub async fn websocket(req: Request, mut ws: WebSocket) -> Result<()> {
    let name = req.param::<String>("name").unwrap_or_default();
    while let Ok(msg) = ws.receive().await {
        if let Some(msg) = msg {
            match msg {
                Message::Text(text) => {
                    let text = format!("{},{}", name, text);
                    ws.send(Message::Text(text)).await?;
                }
                Message::Close(_) => break,
                _ => {}
            }
        }
    }
    Ok(())
}

// Middleware Function
pub async fn stat_time(req: Request, netx: Next) -> Result {
    let start_time = Instant::now();

    let res = netx.next(req).await?;

    let elapsed_time = start_time.elapsed();

    println!(
        "The current request processing function takes time :{:?}",
        elapsed_time
    );

    println!(
        "The response after the execution of the current request processing function : {:?}",
        res
    );
    Ok(res)
}

// Write router like a tree
fn main() -> Result<()> {
    
    // The Root Router
    let mut root = Router::new("/");

    // Add Middleware  ( Middleware can be added to any routing node )
    root.hook(stat_time, vec!["/user"], vec!["/hello"]);
    root.get("/*", StaticDir::new("src").listing(true));
    root.ws(":name/ws", websocket);
    root.get("/parse_header", parse_header);

    // The Sub Router
    let mut user = Router::new("user");
    user.post("create", create)
        .patch("update/:id", update)
        .get("query", query)
        .delete("delete/:id/:name", delete)
        .post("multipart_form_data", multipart_form_data);

    // Add sub router to the root router
    root.push(user);

    // Registering the root router into the server
    let app = hypers::new(root);

    // Start Server
    app.run("127.0.0.1:7878")
}