const mongoose = require('mongoose') const CheckSchema = mongoose.Schema( { monitorId: { type: mongoose.Schema.Types.ObjectId, ref: 'Monitor', immutable: true, }, status: { type: Boolean, }, responseTime: { type: Number, // milliseconds }, statusCode: { type: Number, // 200, ... , 500 }, message: { type: String, } }, { timestamps: true, } ); module.exports = mongoose.model('Check', CheckSchema);