Web AnalyticsTool - MongoDB Schema Design - Fields and Validations

schema.js

/***********Mongoose Schema*********/
const sessionSchema = new Schema({
  "webId": { 
    type: String, 
    enum: { values: ["SUB001"], message: "{VALUE} is not Valid!" },
    required: [true, "Why no WEB ID?"]
  },
  "currentUrlHost": { type: String, required: [true, "Why no URL Orgin?"] },
  "currentPagePath": { type: String, required: [true, "Why no Page Path?"] },
  "visiOrOpenDateTime": { type: Date, required: [true, "Why no Page Visit Date?"] },
  "timeOnPageInS": {
    type: Number, 
    min: [0, "Negative time duration!"], 
    required: [true, "Why no Time Spent on Page?"]
  },
  "trafficSource": { type: String, required: [true, 'Why no Traffic Source?'] },
  "deviceWidth": { 
    type: Number,
    min: [100, "Screen width too small!"],
    max: [10500, "Screen width so large!"],
    required: [true, 'Why no Device Width?']
  }
});