英文:
Having trouble .deleteOne by id in MongoDB
问题
I can help with the translation. Here is the translated code:
无法通过`id`在MongoDB中删除特定文档。
在Next.js中，我有以下处理程序以删除特定聊天通过`id`。
我能够使用`deleteMany`方法删除所有文档，但无法按id删除特定文档。
export default async function handler(req: any, res: any) {
try {
const client = await clientPromise;
const db = client.db("mydb");
const { chatId } = req.body;
await db.collection("chats").deleteOne({
_id: new ObjectId(chatId),
});
res.status(200).json({});
} catch (error) {
...
}
}
在按下删除按钮时，我调用以下函数：
const handleDeleteSingleChat = async () => {
await fetch(`/api/database/deleteChat`, {
method: "DELETE",
body: JSON.stringify({
chatId: chatId,
}),
});
};
我的MongoDB文档如下：
{
_id: ObjectId(64747668f6eefac44a882b35);
...
}
到目前为止，我尝试了不同的REST API方法。我也测试了`chatId`的值，它工作正常。我不确定在处理程序中应该返回什么，所以我只返回了一个空对象。
注意：我没有收到任何错误，网络显示fetch函数成功执行。
更新：我能够通过直接编写文档的字符串id来执行`.deleteOne`，问题在于`chatId`的值，但无法弄清楚是什么问题。
export default async function handler(req: any, res: any) {
...
await db.collection("chats").deleteOne({
_id: new ObjectId("64747668f6eefac44a882b35"),
});
...
}
Please note that the code is translated, but it's important to ensure that your project setup and dependencies are correctly configured for it to work as expected.
英文:
I can't delete a specific document by its id in MongoDB.
In Next.js, I have this handler to delete a specific chat by id.
I was able to delete all documents using deleteMany method, but can not delete a specific document by id.
export default async function handler(req: any, res: any) {
try {
const client = await clientPromise;
const db = client.db("mydb");
const { chatId } = req.body;
await db.collection("chats").deleteOne({
_id: new ObjectId(chatId),
});
res.status(200).json({});
} catch (error) {
...
}
}
On pressing a delete button I'm calling a function below:
const handleDeleteSingleChat = async () => {
await fetch(`/api/database/deleteChat`, {
method: "DELETE",
body: JSON.stringify({
chatId: chatId,
}),
});
};
My document in MongoDB looks like:
{
_id: ObjectId(64747668f6eefac44a882b35);
...
}
So far I've tried using different REST API methods. I've also tested chatId value and it works fine. I'm not exactly sure what to return in a handler so I just returned an empty object.
Note: I do not get any errors and network shows that fetch function was successful.
Update: I'm able to .deleteOne by writing document's string id directly, the problem is in chatId value, but can't figure what.
export default async function handler(req: any, res: any) {
...
await db.collection("chats").deleteOne({
_id: new ObjectId("64747668f6eefac44a882b35"),
});
...
}
答案1
得分: 1
你的 fetch 调用很可能缺少了内容类型，因此后端将你的请求体转换为 JSON：
fetch(`/api/database/deleteChat`, {
method: "POST",
headers: {
// 确保后端将请求体解释为 JSON
'Content-Type': 'application/json'
},
body: JSON.stringify({
chatId: chatId,
}),
});
此外，在 DELETE 方法的情况下，通常应将 id 传递到 URL 中，而不是在请求体中传递。参见：https://stackoverflow.com/questions/299628/is-an-entity-body-allowed-for-an-http-delete-request
看起来最近 Next.js 开始在 DELETE 方法的情况下忽略请求体，这导致了依赖于旧行为的开发者感到困惑：参见 vercel/next.js#49353。
英文:
Your fetch call is very probably missing a content type, so that your body is converted to JSON in the backend:
fetch(`/api/database/deleteChat`, {
method: "POST",
headers: {
// Ensure body will be interpreted as JSON by backend
'Content-Type': 'application/json'
},
body: JSON.stringify({
chatId: chatId,
}),
});
Furthermore, in the case of DELETE method, the id should typically be passed in the URL, rather than in the request body. See https://stackoverflow.com/questions/299628/is-an-entity-body-allowed-for-an-http-delete-request
Looks like Next.js started to ignore the request body in the case of a DELETE method only recently, leading to confusion among developers relying on the old behaviour: see vercel/next.js#49353
通过集体智慧和协作来改善编程学习和解决问题的方式。致力于成为全球开发者共同参与的知识库，让每个人都能够通过互相帮助和分享经验来进步。
评论