Handle bad json.

src/lib.rs

@@ -23,6 +23,7 @@ pub enum ActionType {
 #[derive(Clone, Debug)]
 pub enum ErrorType {
     DocumentAlreadyExists,
+    DocumentInvalidRequest,
     DocumentNotFound,
 }
 
@@ -75,7 +76,7 @@ mod mtt_replies {
         let reply = MTTReply::new(msg);
         match reply.get_error() {
             Some(err) => match err {
-                ErrorType::DocumentNotFound => {},
+                ErrorType::DocumentNotFound => {}
                 _ => unreachable!("got {:?}: should have been document not found", err),
             },
             None => unreachable!("should return an error type"),