MongoDB 集合创建索引不起作用

Question

I want to implement a simple search engine on my application and here's the api I made:

global.db.collection("pages").createIndex({"datas.content":"text"});
global.db.collection("pages").find({$text: {$search: req.body.query}}, {score: {$meta: "textScore"}}).sort({score:{$meta:"textScore"}}).toArray(function(err, result) {
  res.json(result);
});

And here's my document structure:

{
    "_id" : ObjectId("5cd176aee5b87c095cfa30ba"),
    "code" : "af34e870-70c1-11e9-9ba8-eb8f4152101a",
    "datas" : {
        "content" : "Donec ante sapien, gravida id risus eget,"
    },
    "tags" : null
}

But when I call the api I always get null as a result, am I doing something wrong?

Thanks

Answer 1

Your code has no problem forFull-Text Search in MongoDB

But what's left is doubtful is the information coming to API. Hope your request is POST and inside it a key with the name of query . But if your request is a GET , you should use {$search: req.query}} and you should check the data that coming from client side is ok!

OR in res.json(result) result is not JSON .