checkMasterFile.js

const fs = require('fs');
const filePath = './dist/master-file.json';
const web3 = require('web3');
const validate = require('validate.js');
const validateObject = require('./validateObject');
const constraints = {
  network: {
    presence: {
      allowEmpty: false,
    },
    inclusion: {
      within: [ 'akroma',
      'ath',
      'clo',
      'egem',
      'ella',
      'esn',
      'etc',
      'eth',
      'etho',
      'etsc',
      'exp',
      'go',
      'goerli',
      'iolite',
      'kov',
      'mix',
      'music',
      'pirl',
      'poa',
      'reosc',
      'rin',
      'rop',
      'rsk',
      'rsk-test',
      'tomo',
      'tt',
      'ubq',
      'web' ]
    
    },
    type: "string"
  },
  contract_address: function(value) {
    if (web3.utils.isAddress(value)) {
      return null;
    }
    return {
      presence: { message: 'Token Address missing' },
      length: { is: 42 }
    };
  },
  icon: {
    presence: true,
    type: "string"
  },
  icon_png: {
    presence: true,
    type: "string"
  },
  link: {
    presence: {
      allowEmpty: false
    },
    type: "string"
  },
  website: {
    presence: true,
    type: "string"
  }
};

function checkMasterFile() {
  const arr = JSON.parse(fs.readFileSync(filePath));
  arr.forEach(item => {
    validateObject(constraints, item, filePath);
    if (validate(item, constraints) !== undefined) {
      const errs = validate(item, constraints);
      Object.keys(errs).forEach(key => {
        console.error(
          `${errs[key][0]} for Master File`
        );
      });
      process.exit(1);
    }
  });
}

checkMasterFile();