feat(info): add an info endpoint (#301)

* feat(info): add an info endpoint

Co-authored-by: Leo McArdle <[email protected]>

src/api/api_v1.rs

@@ -1,4 +1,5 @@
 use crate::api::ai::{ask, explain, explain_feedback, quota};
+use crate::api::info::information;
 use crate::api::newsletter::{
     is_subscribed, subscribe_anonymous_handler, subscribe_handler, unsubscribe_handler,
 };
@@ -16,6 +17,7 @@ pub fn api_v1_service() -> impl HttpServiceFactory {
         // limit request payload size to 1MB
         .limit(1_048_576);
     web::scope("/api/v1")
+        .service(web::resource("/info").route(web::get().to(information)))
         .service(
             web::scope("/plus")
                 .service(

src/api/info.rs

@@ -0,0 +1,15 @@
+use actix_web::HttpResponse;
+use serde::Serialize;
+
+#[derive(Serialize)]
+struct Info {
+    version: &'static str,
+}
+
+const INFO: Info = Info {
+    version: env!("CARGO_PKG_VERSION"),
+};
+
+pub async fn information() -> HttpResponse {
+    HttpResponse::Ok().json(INFO)
+}

src/api/mod.rs

@@ -7,6 +7,7 @@ pub mod elastic;
 pub mod error;
 pub mod fxa_webhook;
 pub mod healthz;
+pub mod info;
 pub mod newsletter;
 pub mod ping;
 pub mod play;