amend gitignore for server

server/.gitignore

@@ -0,0 +1,21 @@
+Cargo.lock
+target/
+guide/build/
+/gh-pages
+
+*.so
+*.out
+*.pyc
+*.pid
+*.sock
+*~
+.DS_Store
+
+# These are backup files generated by rustfmt
+**/*.rs.bk
+
+# Configuration directory generated by CLion
+.idea
+
+# Configuration directory generated by VSCode
+.vscode

server/Cargo.toml

@@ -0,0 +1,10 @@
+[package]
+name = "server"
+version = "1.0.0"
+edition = "2021"
+
+# See more keys and their definitions at https://doc.rust-lang.org/cargo/reference/manifest.html
+
+[dependencies]
+actix-web ="4"
+utoipa = { version = "3", features = ["actix_extras"] }

server/readme.md

@@ -0,0 +1,15 @@
+# installation
+
+## windows (step 1)
+
+choco install -y
+
+## Linux, macos (alernate step 1)
+
+use apt, pacman, curl, brew or whatever.
+
+## Always (steps 2 and so on)
+
+- `rustup-init.sh` (Windows: rustup-init.ex, e.g. %AppData%\Local\Temp\chocolatey\rustup.install\1.25.1\rustup-init.exe)
+- select a good match in the dialog of this CLI installer
+

server/src/main.rs

@@ -0,0 +1,28 @@
+use actix_web::{get, post, web, App, HttpResponse, HttpServer, Responder};
+
+#[get("/")]
+async fn hello() -> impl Responder {
+    HttpResponse::Ok().body("Hello world!")
+}
+
+#[post("/echo")]
+async fn echo(req_body: String) -> impl Responder {
+    HttpResponse::Ok().body(req_body)
+}
+
+async fn manual_hello() -> impl Responder {
+    HttpResponse::Ok().body("Hey there!")
+}
+
+#[actix_web::main]
+async fn main() -> std::io::Result<()> {
+    HttpServer::new(|| {
+        App::new()
+            .service(hello)
+            .service(echo)
+            .route("/hey", web::get().to(manual_hello))
+    })
+    .bind(("127.0.0.1", 8080))?
+    .run()
+    .await
+}