JavaScript Servers

Hi there,

I need 7 servers (A,B,C, D, E, F,G) implemented in node.js with the following functionalities:

Server A can decides to send a message (string or number) to server G via a series of chosen servers. For example:
Server A sends a message to server G via server B , D, F in the following fashion:

Server A sends a message "Hi Server B" to Server B and the guide where to forward the message.
The guide is [D,F, G]. Server B prints a message as "Got a message from Server A", "Forwarding the message to Server D".

Server B forwards the message to Server D. Server D prints out "received a the message from Server B", then it forwards the same message to server F alongside the path to be followed [F,G] and so on.

In general, one Server could choose to send a message to another Server via a chosen series of servers as described above.

If someone can do this with simple code that each server is implemented with few lines of code, please let me know. Make sure that this is very easy for you.

Servers must run locally, and each Server (A,B,C, D, E, F,G) could be bound with a different port number.

Looking Forward to hear from you.
(Node.js or Javascript)