Slide 9
Slide 9 text
{
"_id": "741mno",
"mileage": 15000,
"color": "green",
"owner": "Sally",
"company": "Honda",
"year": 2022,
"type": "Accord",
// ...several properties
"used": false
}
{
"_id": "741mno",
"mileage": 15000,
"color": "green",
"owner": "Sally",
"company": "Honda",
"year": 2022,
"type": "Accord",
// ...several properties
"used": false
}
{
"_id": "741mno",
"mileage": 15000,
"color": "green",
"owner": "Sally",
"company": "Toyota",
"year": 2022,
"type": "Accord",
// ...several properties
"used": true
}
"company":
"Toyota",
{
"_id": "741mno",
"mileage": 8000,
"color": "green",
"owner": "Sally",
"company": "Honda",
"year": 2017,
"type": "Accord",
// ...several properties
"used": false
}
"mileage": 8000,
"year": 2017,
"used": true
差分だけが送受信されるため高パフォーマンス
ポーリングも不要