Mongo Call不会删除参数 [英] Mongo Call does not remove parameters
本文介绍了Mongo Call不会删除参数的处理方法,对大家解决问题具有一定的参考价值,需要的朋友们下面随着小编来一起学习吧!
问题描述
我在mongo中使用node,我想让mongo得到调用以停止返回一些值,例如_id和uid.我读过的所有内容都说此调用应该可以,但是当我在用户界面上打印json值时,它仍然具有这些值.
Im using node with mongo, and I want for the mongo get call to stop returning some values, such as _id and uid. Everything that ive read says that this call should work, but when I print the json value on my UI, it still has those values.
app.get('/users', async function(req, res){
console.log("Getting User Info!");
await client.connect();
const db = client.db('database');
var uidparam = req.header("uid");
db.collection("users").findOne({"uid": uidparam}, { _id: 0, uid: 0, }, function(err, result) {
if (err) throw err;
res.send(result);
});
});
我也尝试过
{ "_id": false, "uid": false, }
和
{ _id: false, uid: false, }
和
{ '_id': 0, 'uid': 0, }
推荐答案
Following along with this example for Node, it looks like you need to specify a projection
field for the options document. It would look like this:
{
projection: {
_id: 0,
uid: 0
}
}
这篇关于Mongo Call不会删除参数的文章就介绍到这了,希望我们推荐的答案对大家有所帮助,也希望大家多多支持IT屋!
查看全文