Setup API

src/cors.rs

@@ -0,0 +1,32 @@
+use rocket::fairing::{Fairing, Info, Kind};
+use rocket::http::{Header, Method, Status};
+use rocket::{Request, Response};
+use std::io::Cursor;
+
+pub struct CORS;
+
+#[rocket::async_trait]
+impl Fairing for CORS {
+    fn info(&self) -> Info {
+        Info {
+            name: "CORS headers",
+            kind: Kind::Response,
+        }
+    }
+
+    async fn on_response<'r>(&self, req: &'r Request<'_>, response: &mut Response<'r>) {
+        response.set_header(Header::new("Access-Control-Allow-Origin", "*"));
+        response.set_header(Header::new(
+            "Access-Control-Allow-Methods",
+            "PUT, GET, HEAD, DELETE, OPTIONS, POST",
+        ));
+        response.set_header(Header::new("Access-Control-Allow-Headers", "*"));
+        response.set_header(Header::new("Access-Control-Allow-Credentials", "true"));
+
+        // force status 200 for options requests
+        if req.method() == Method::Options {
+            response.set_status(Status::Ok);
+            response.set_sized_body(None, Cursor::new(""))
+        }
+    }
+}