Langgraph server doesn't work well with some typesript configurations

[itachiRedhair]

In my project built using NestJS, we have some code that imports moment like this:

import * as moment from 'moment'

When I try to use the langgraph server importing a graph, and this graph has further dependency on the existing code as above, it throws following error:

TypeError: moment is not a function

Is there any recommendation on how to make langgraph server and our nest server code work with the same code? This is just one example, it fails with many other imports that are like this.

Also, is there a way to use langgraph api server with an existing expressjs or nest server. It would be nice to import the langgraph routes and make it part of existing express based server.