number and text problem

[Puxxx]

I found this front-end tools from https://rtool.cn/jsonserver/docs/relationships, and I download the db.json to localhost, and command the stings "json-server --watch db.json"
Then I use http://localhost:3000/posts/1?_embed=comments, json resualt return like this
{
"userId": 1,
"id": "1",
"title": "sunt aut facere repellat provident occaecati excepturi optio reprehenderit",
"body": "quia et suscipit\nsuscipit recusandae consequuntur expedita et cum\nreprehenderit molestiae ut ut quas totam\nnostrum rerum est autem sunt rem eveniet architecto",
"comments": []
}

but when I use the url https://jsonplaceholder.typicode.com/posts/1?_embed=comments, json resualt return like this

{
"userId": 1,
"id": 1,
"title": "sunt aut facere repellat provident occaecati excepturi optio reprehenderit",
"body": "quia et suscipit\nsuscipit recusandae consequuntur expedita et cum\nreprehenderit molestiae ut ut quas totam\nnostrum rerum est autem sunt rem eveniet architecto",
"comments": [
{
"postId": 1,
"id": 1,
"name": "id labore ex et quam laborum",
"email": "[email protected]",
"body": "laudantium enim quasi est quidem magnam voluptate ipsam eos\ntempora quo necessitatibus\ndolor quam autem quasi\nreiciendis et nam sapiente accusantium"
},……
]
}

so I find the diffence:
the website json return "id": 1 , id value is 1,but the local json return "id": "1", id value is "1".so why could this happen?

[Iamhhp]

Yes, this is my problem too.
And When the id property is a number, when we request the following endpoint, the value Not Found
But when the id property is a string, when we request the same endpoint, it will return the desired data.
This problem did not exist in the early versions