What is mongoose-savehashed?

mongoose-savehashed is mongoose plugin built for node.js which helps you to save and compare hashed values.

Note: Right Now, This plugin completely functions on promises, Based on feedback callback support will be added.

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How to install?

Type (On CLI):

npm install mongoose-savehashed --save

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Usage:

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NOTE: Register The Plugin Before Calling Model In Any File In Your App, Register Only Once.

Register The Plugin For All Schemas:

const mongoose-savehashed = require('mongoose-savehashed');

mongoose.plugin(mongoose-savehashed); // To Register For All Schemas

Register The Plugin For Specific Schemas:

const mongoose = require('mongoose');

const mongoose-savehashed = require('mongoose-savehashed');

const Schema = mongoose.Schema;

const someSchema = new Schema({
        someAttr:{
            type:'string'
        }
    });

someSchema.plugin(mongoose-savehashed);

const someModel = mongoose.model('someModel',someSchema);

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Calling saveHashed

Consider a userModel.js

Here you want to hash password and a secretKey before storing in MongoDb.

const mongoose = require('mongoose');

const mongoose-savehashed = require('mongoose-savehashed');

const Schema = mongoose.Schema;

const userSchema = new Schema({
        username:{
            type:'string'
        },
        password:{
            type:'string'
        },
        secretKey:{
            type:'string'
        }
    });

userSchema.plugin(mongoose-savehashed);

module.exports = mongoose.model('user',userSchema);

Consider userController.js

const User = require('./userModel.js');

User.create({username:"akshitgrover",password:"1516",secretKey:"151617"}).then((user)=>{
    

    //Pass list of object properties to hash, If no list passed by default "password" is chosen.

    user.saveHashed(["password","secretKey"]).then((str)=>{

        console.log(str);

    }).catch((err)=>{

        console.log(err);

    }); 
});

Calling compareHashed

Consider userController.js

const User = require('./userModel.js');

// Pass A Query to find the documents and acctual values to compare which are hashed in MongoDb

const query = {username:"akshitgrover"};

const values = {password:"1516",secretKey:"151617"};

cosnt options = {size:1} // To Get A Single Document, As Many Documents Can Match (optional)

User.compareHashed(query,values).then((users)=>{
    
    console.log(users); // List of matched with hashed values documents.

}).catch((err)=>{

    console.log(err);

});

//Passing Options

User.compareHashed(query,values,options).then((user)=>{
    
    console.log(users); // First Document matched and compared wiht hashed values.

}).catch((err)=>{

    console.log(err);

});