Logging into Marbles POC

[mychewcents]

Description

I wanted to trace the commands from the source (webpage) to the destination (blockchain) to know how and what commands are called in the real world scenario. I got to the end point where the Marbles POC finally makes a http request. But I have not been able to figure out, which file is associated with that http request.

I have hosted the marbles POC on localhost and also the hyperledger/fabric is compiled on ubuntu 16.04.1 system.

I want to know which file is called in hyperledger/fabric API when there is a http request to localhost:3000. I want to know what is the entry point for the transaction fired from webpage into the blockchain.

Describe How to Reproduce