old_contents: const mongoose = require('mongoose');
  
  const requestSchema = mongoose.Schema({
    date: {
      type: Date,
      unique: true
    },
    'total': Number,
    'extension': Number,
    'api': Number,
    'sketch': Number,
    '0_1': Number,
    '0_2': Number,
    '0_2_1': Number,
    '0_3': Number,
    '0_3_1': Number,
    '0_3_2': Number,
    '0_4': Number,
    '0_4_1': Number,
    '0_5': Number,
    '0_6': Number,
    '0_7': Number,
    '0_8': Number,
    '1_0': Number,
    '1_1': Number,
    '1_2': Number,
    '1_3': Number,
    'bandwidth': Number
  });
  requestSchema.index({date: 1}, {unique: true});
  
  const Request = mongoose.model('Request', requestSchema);
  
  module.exports = Request;
new_contents: const mongoose = require('mongoose');
  
  const requestSchema = mongoose.Schema({
    date: {
      type: Date,
      unique: true
    },
    'total': Number,
    'extension': Number,
    'api': Number,
    'sketch': Number,
    '0_1': Number,
    '0_2': Number,
    '0_2_1': Number,
    '0_3': Number,
    '0_3_1': Number,
    '0_3_2': Number,
    '0_4': Number,
    '0_4_1': Number,
    '0_5': Number,
    '0_6': Number,
    '0_7': Number,
    '0_8': Number,
    '1_0': Number,
    '1_1': Number,
    '1_2': Number,
    '1_3': Number,
    '1_4': Number,
    'bandwidth': Number
  });
  requestSchema.index({date: 1}, {unique: true});
  
  const Request = mongoose.model('Request', requestSchema);
  
  module.exports = Request;
subject: Add v1.4 to request model