variable name contains dash creates problems for req.query for NodeJS Express?

https://stackoverflow.com/questions/22740821/get-variable-name-contains-dash-creates-problems-for-req-query-for-nodejs-expres

In javascript, object values can be accessed by using either . or []
When the key contains a dash, you cannot use the . notation because the - will be interpreted as "minus". This is not related to express, it's just how javascript works.

So you should use:

req.query["message-timestamp"]