1 works

Save to MongoDB without Duplicates Using Mongoose

dashboard+ Project

Posted by @bravocoder #javascript #nodejs

Step 0: Compile a Model

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

const exampleSchema = new Schema({
    title: { type: String , required: true},
    content: [{type: String}]

var Example = mongoose.model('Example', exampleSchema);
module.exports = Example;
content_copyCopy to Clipboard

Step 1: In your router, use the following

router.post('/example', (req, res, next) => {

    var query = req.body.title; //Extract title from input form
    Example.findOne({title:query}, function(err, example){
        if(err) console.log(err);
        if ( example){
            console.log("This has already been saved");
        } else {

            var example = new Example(req.body);
            example.save(function(err, example) {
                if(err) console.log(err);
                console.log("New example created");
content_copyCopy to Clipboard

This method helps you prevent creating duplicates in your database. It works by first searching the database. If there are no search results, it will create and save a new item.

>> Browse more code snippets