first

.gitignore

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+/target

Cargo.toml

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+[package]
+name = "learn_axum"
+version = "0.1.0"
+edition = "2021"
+
+# See more keys and their definitions at https://doc.rust-lang.org/cargo/reference/manifest.html
+
+[dependencies]
+tokio = { version = "1.29.1", features = ["full"] }
+axum = "0.6.18"
+serde = { version = "1.0", features = ["derive"] }
+serde_json = "1"
+tower-http = { version = "0.4.1", features = ["fs"] }
+
+[dev-dependencies]
+anyhow = "1"
+httpc-test = "0.1.1"

src/error.rs

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+use axum::http::StatusCode;
+use axum::response::{IntoResponse, Response};
+
+pub type Result<T> = core::result::Result<T, Error>;
+
+#[derive(Debug)]
+pub enum Error {
+    LoginFail,
+}
+
+impl IntoResponse for Error {
+    fn into_response(self) -> Response {
+        println!("->> {:<12} - {self:?}", "INTO_RESPONSE");
+
+        (StatusCode::INTERNAL_SERVER_ERROR, "UNHANDLED_CLIENT_ERROR").into_response()
+    }
+}

src/main.rs

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+#![allow(unused)]
+
+pub use self::error::{Error, Result};
+
+use std::net::SocketAddr;
+
+use axum::extract::{Path, Query};
+use axum::http::{Method, Uri};
+use axum::response::{Html, IntoResponse, Response};
+use axum::routing::{get, get_service};
+use axum::{middleware, Json, Router};
+use axum::Server;
+use serde::Deserialize;
+use tower_http::services::ServeDir;
+
+
+mod error;
+mod web;
+
+#[derive(Debug, Deserialize)]
+struct HelloParams {
+    name: Option<String>,
+}
+
+#[tokio::main]
+async fn main() {
+    let routes_all = Router::new()
+        .merge(routes_hello())
+        .merge(web::routes_login::routes())
+        .fallback_service(routes_static());
+
+    let addr = SocketAddr::from(([127, 0, 0, 1], 3000));
+    println!("->> Listening on {addr}\n");
+    Server::bind(&addr)
+        .serve(routes_all.into_make_service())
+        .await
+        .unwrap();
+}
+
+fn routes_static() -> Router {
+    Router::new().nest_service("/", get_service(ServeDir::new("./")))
+}
+
+fn routes_hello() -> Router {
+    Router::new().route("/hello", get(handler_hello))
+        .route("/hello2/:name", get(handler_hello2))
+}
+
+// e.g. `hello?name=jen`
+async fn handler_hello(Query(params): Query<HelloParams>) -> impl IntoResponse {
+    println!("->> {:<12} - handler_hello - {params:?}", "HANDLER");
+    let name = params.name.as_deref().unwrap_or("World!");
+    Html(format!("Hello <strong>{name}</strong>!"))
+}
+
+// e.g. `hello/jen`
+async fn handler_hello2(Path(name): Path<String>) -> impl IntoResponse {
+    println!("->> {:<12} - handler_hello_path - {name:?}", "HANDLER");
+    Html(format!("Hello <strong>{name}</strong>!"))
+}

src/web/mod.rs

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+pub mod routes_login;

src/web/routes_login.rs

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+use crate::{Error, Result};
+use axum::{Json, Router};
+use axum::routing::post;
+use serde::Deserialize;
+use serde_json::{json, Value};
+
+pub fn routes() -> Router {
+    Router::new().route("/api/login", post(api_login))
+}
+
+async fn api_login(payload: Json<LoginPayload>) -> Result<Json<Value>>{
+    println!("->> {:<12} - api_login", "HANDLER");
+
+    if payload.username != "demo1" || payload.password != "demo1" {
+        return Err(Error::LoginFail);
+    }
+
+    // TODO: Set cookies
+    
+    let body = Json(json!({
+        "result": {
+        "success": true
+        }
+    }));
+
+    Ok(body)
+}
+
+#[derive(Debug, Deserialize)]
+struct LoginPayload {
+    username: String,
+    password: String,
+}

tests/quick_dev.rs

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+#![allow(unused_imports)]
+
+use anyhow::Result;
+use serde_json::json;
+
+#[tokio::test]
+async fn test_quick_dev() -> Result<()> {
+    let hc = httpc_test::new_client("http://localhost:3000")?;
+    hc.do_get("/hello?name=jen").await?.print().await?;
+
+    let hc = httpc_test::new_client("http://localhost:3000")?;
+    hc.do_get("/hello2/mike").await?.print().await?;
+
+    
+    hc.do_get("/src/main.rs").await?.print().await?;
+
+    hc.do_get("/src/blub.rs").await?.print().await?;
+
+    let req_login = hc.do_post("/api/login", json!({"username": "demo1", "password": "demo1"}));
+    req_login.await?.print().await?;
+
+    Ok(())
+}