Health check data in another file

handlers.go

@@ -43,12 +43,11 @@ func (h *Handlers) Get(w http.ResponseWriter, r *http.Request, p httprouter.Para
 	// Get the short URL
 	url, err := h.store.Get(p.ByName("id"))
 	if err != nil {
-        // Respond to health checks
-        if p.ByName("id") == "healthz" {
-            w.Header().Set("Content-Type", "text/plain")
-            w.Write([]byte("ok"))
-            return
-        }
+		// Respond to health checks
+		if p.ByName("id") == "healthz" {
+			healthz(w)
+			return
+		}
 		if err != sql.ErrNoRows {
 			log.Print("handlers: " + err.Error())
 		}

healthz.go

@@ -0,0 +1,16 @@
+package main
+
+import (
+	"fmt"
+	"net/http"
+	"runtime"
+)
+
+var ver string
+
+func healthz(w http.ResponseWriter) {
+	w.Header().Set("Content-Type", "text/plain")
+	fmt.Fprintf(w, "ok\n")
+	fmt.Fprintf(w, "ver: %v\n", ver)
+	fmt.Fprintf(w, "go ver: %v\n", runtime.Version())
+}

main.go

@@ -31,14 +31,14 @@ func main() {
 		baseUrl = fmt.Sprintf("localhost:%d", port)
 	}
 
-    // Perform health check on running instance
-    if healthCheck {
-        err := ping()
-        if err != nil {
-            panic(err)
-        }
-        return
-    }
+	// Perform health check on running instance
+	if healthCheck {
+		err := ping()
+		if err != nil {
+			panic(err)
+		}
+		return
+	}
 
 	// Open database connection
 	db, err := sql.Open("postgres", postgres)
@@ -59,13 +59,13 @@ func main() {
 }
 
 func ping() error {
-    resp, err := http.Get(fmt.Sprintf("http://localhost:%d/healthz", port))
-    if err != nil {
-        return err
-    }
-    defer resp.Body.Close()
-    if resp.StatusCode != 200 {
-        return fmt.Errorf("agent returned non-200 status code")
-    }
-    return nil
+	resp, err := http.Get(fmt.Sprintf("http://localhost:%d/healthz", port))
+	if err != nil {
+		return err
+	}
+	defer resp.Body.Close()
+	if resp.StatusCode != 200 {
+		return fmt.Errorf("agent returned non-200 status code")
+	}
+	return nil
 }