api: add version info

api/version.go

@@ -0,0 +1,17 @@
+package api
+
+import (
+	"io"
+
+	"github.com/julienschmidt/httprouter"
+)
+
+func init() {
+	router.GET("/api/version", apiHandler(showVersion))
+}
+
+func showVersion(_ httprouter.Params, _ io.Reader) Response {
+	return APIResponse{
+		response: map[string]interface{}{"version": 0.1},
+	}
+}