无法删除错误的CRUD API（NodeJS，MongoDB，Express）

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问题描述

尝试从我正在研究的API项目中创建的mongo数据库中删除字段时出现错误。我不仅对RESTful API还是MongoDB和Express都非常陌生。我遵循了有关YouTube的教程，该教程解释了制作此类API的步骤，因此我做到了，一切都运行良好。现在，我尝试使用自己的自定义字段来重现此API。

I'm getting an error while trying to delete a field from a mongo database I created in an API project I'm working on. I'm still very much new to not only RESTful APIs but also MongoDB and Express. I followed a tutorial on Youtube that explained the steps to go through to make such an API and so I did and everything worked perfectly. Now I'm trying to reproduce this API using my own custom fields.

基本上，现在我的数据库中填充了两个元素。我已经创建了可以正常使用的获取，添加和更新方法。这是get方法的响应：

Basically my database is populated with two elements right now. I've already created get, add and update methods that work properly. Here is the response for the get method :

[{"_id":"58a112564cb325769b9d90de","name":"John Doe","caption":"I like pizza","friends":["id1","id2","id3"],"schedule":[[13,14],[14,15.5]]},{"_id":"58a1178da52bfc07fd25ce3f","name":"Carla Doe","caption":"I hate pizza","__v":0,"friends":null,"schedule":null}]

现在有问题的功能是删除功能。我似乎找不到它可能出了什么问题。它与上述YouTube教程中的功能完全相同。我检查了一百次，没有字符错或遗漏。

Now the function that has an issue is the delete function. I can't seem to find what might be wrong with it. It is the exact same function as in the aformentioned Youtube tutorial. I've checked a hundred times over, there is no character wrong or missing.

这是我在邮递员中遇到的错误：

Here is the error I get in postman :

Cannot DELETE /api/clients/58a1178da52bfc07fd25ce3f

这是server.js的一部分：

Here is the server.js part :

// Delete client
app.delete('api/clients/:_id', function(req, res){
    var id = req.params._id;
    Client.deleteClient(id, function(err, client){
        if(err){
            throw err;
        }
        else {
            res.json(client);
        }
    });
 });

这是clients.js部分：

Here is the clients.js part :

// Delete Clients
module.exports.deleteClient = function (id, client, callback) {
     var query = {_id: id};
    Client.remove(query, client, callback);
};

我不知道我是否在向您提供解决此问题所需的所有信息。我无法为我的爱而找出它的来源。

I don't know if I'm giving you all the information needed to resolve the issue. I can't for the love of me find out where it's coming from.

期待阅读您的答案。

无法删除错误的CRUD

无法删除错误的CRUD API（NodeJS，MongoDB，Express）

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