feat(health): exposing commit hash, features, uptime to the health (#394)

Author: geekbrother

integration/integration.test.ts

@@ -26,9 +26,13 @@ describe('blockchain api', () => {
   })
   describe('Health', () => {
     it('is healthy', async () => {
-      const { status } = await http.get(`${baseUrl}/health`)
+      const resp: any = await http.get(`${baseUrl}/health`)
 
-      expect(status).toBe(200)
+      expect(resp.status).toBe(200)
+      expect(resp.data).toContain('OK v')
+      expect(resp.data).toContain('hash:')
+      expect(resp.data).toContain('features:')
+      expect(resp.data).toContain('uptime:')
     })
   })
   describe('Middlewares', () => {

src/handlers/health.rs

@@ -8,6 +8,12 @@ use {
 pub async fn handler(State(state): State<Arc<AppState>>) -> impl IntoResponse {
     (
         StatusCode::OK,
-        format!("OK v{}", state.compile_info.build().version()),
+        format!(
+            "OK v{}, commit hash: {}, features: {}, uptime: {:?} seconds",
+            state.compile_info.build().version(),
+            state.compile_info.git().short_hash(),
+            state.compile_info.build().features(),
+            state.uptime.elapsed().as_secs()
+        ),
     )
 }

src/state.rs

@@ -26,6 +26,8 @@ pub struct AppState {
     pub analytics: RPCAnalytics,
     pub compile_info: CompileInfo,
     pub ens_allowlist: Option<HashMap<H160, String>>,
+    /// Service instance uptime measurement
+    pub uptime: std::time::Instant,
 }
 
 pub fn new_state(
@@ -46,6 +48,7 @@ pub fn new_state(
         analytics,
         compile_info: CompileInfo {},
         ens_allowlist,
+        uptime: std::time::Instant::now(),
     }
 }