To install node packages use

install npm 

create mongodb document with ref of contactlist.json

https://github.com/andzdroid/mongo-express

http://andzdroid.github.io/mongo-express/

npm install mongo-express

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go to mongo-express folder using Command line / gitbash/ cmd

/node_modules/mongo-express 

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To configure:

rename config.default.js into a new file called config.js.

Fill in your MongoDB connection details, and any other options you want to change.

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To run:

node app

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http://localhost:8081

 basicAuth: {
    username: process.env.ME_CONFIG_BASICAUTH_USERNAME || 'admin',
    password: process.env.ME_CONFIG_BASICAUTH_PASSWORD || 'pass'
  },


  site: {
    host: '0.0.0.0',
    port: 8081,
....  
}

You can change port number in config.js file...