init repository

src/main.rs

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+use std::fs;
+use std::io::prelude::*;
+use std::net::TcpListener;
+use std::net::TcpStream;
+
+use async_std::task;
+use std::time::Duration;
+
+// TODO: must be set in a conf file
+const SERVER_URL: &str = "127.0.0.1:9000";
+
+// switch to an asynchronous main function
+#[async_std::main]
+async fn main() {
+    let listener = TcpListener::bind(SERVER_URL).unwrap();
+    println!("server is listening at {}", SERVER_URL);
+    for stream in listener.incoming() {
+        let stream = stream.unwrap();
+        handle_connection(stream).await;
+    }
+}
+
+// TODO: must properly handle the request
+async fn handle_connection(mut stream: TcpStream) {
+    let mut buffer = [0; 1024];
+    stream.read(&mut buffer).unwrap();
+
+    let get = b"GET / HTTP/1.1\r\n";
+
+    // TODO: request musy be parsed correctly
+    let status_line = if buffer.starts_with(get) {
+        "HTTP/1.1 200 OK\r\n"
+    } else {
+        "HTTP/1.1 404 NOT FOUND\r\n"
+    };
+
+    let content_type = "Content-Type: application/json\r\n\r\n";
+    let json = r#"{"access_token":"AAAAAAAAAAAA.BBBBBBBBBB.CCCCCCCCCC","refresh_token": "DDDDDDDDDDD.EEEEEEEEEEE.FFFFF"}"#;
+    let response = format!("{status_line}{content_type}{json}\n");
+
+    println!("return status code : {}", status_line);
+    stream.write(response.as_bytes()).unwrap();
+    stream.flush().unwrap();
+}