const mongoose = require('mongoose'); const keySchema = mongoose.Schema({ userId: { type: mongoose.Schema.Types.ObjectId, ref: 'User', required: true, }, name: { type: String, required: true, }, value: { type: String, required: true, }, expiresAt: { type: Date, expires: 0, }, }); keySchema.index({ expiresAt: 1 }, { expireAfterSeconds: 0 }); module.exports = keySchema;