Mongodb TTL mit node.js

Question

Ich habe Probleme damit, Dokumente mit der TTL-Methode aus mongodb zu entfernen. Es soll Dokumente nach maximal 1.10min löschen, aber lebt für immer.

Hier ist mein Code:

Das Modell:

var mongo = require('mongoose'), 
Schema = mongo.Schema; 

var article = new Schema({ 
createdAt: { type: Date, expires: '10s'}, 
title: {type: String}, 
author: {type: String}, 
year: {type: String}, 
abstract: {type: String}, 
article: {type: String}, 
score: {type: String}, 
category: {type: String}, 
link1: {type: String}, 
link2: {type: String} 
}); 

module.exports = mongo.mod 

Die App:

var express = require('express'); 
var mongoose = require('mongoose'); 
var bodyParser = require('body-parser'); 

var db = mongoose.connect('mongodb://localhost/sasapi'); 

var article = require('./models/article'); 

const port = 3000; 
var app = express(); 

app.use(bodyParser.json()); 
var sasRouter = express.Router(); 

sasRouter.route('/articles') 
    .post(function(req, res) { 
var art = new article(req.body); 

    art.save(); 
     res.send("Artikkelen \"" + art.title +"\" lagt til!"); 

}) 
.get(function (req, res) { 
    var filter = {}; 
    if (req.query.title){ 
     filter.title = req.query.title; 
    } 
    if(req.query.author){ 
     filter.author = req.query.author; 
    } 
    article.find(filter, function(err, articles){ 
    if(err){ 
    res.status(500).send(err); 
    }else{ 
    if(!articles.length){ 
     res.send("Ingen treff på filtrering") 
    }else { 

     res.json(articles); 
    } 
    } 
    }); 

}); 

Answer 1

Sie benötigen einen Index auf dieser Spalte zu erstellen.

// Expire at the time indicated by the createdAt field 
article.index({ createdAt: 1 }, { expireAfterSeconds : 10 });