import mongoose, { Schema } from 'mongoose'; const tradingSystemSchema = new Schema( { fbSlug: { type: String, required: true, unique: true, dropDups: true, }, data: Object, history: [{ updatedAt: Date, data: Object, }], }, { timestamps: true, }, ); const TradingSystem = mongoose.model('TradingSystem', tradingSystemSchema); export default TradingSystem;