Demonstration of how to integrate multiple mongodb instances in a nodejs + express app and how we can provide different mongodb database for different hosts.

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Myself Manoj Mohanan
Freelance Web Developer
LinkedIn: https://in.linkedin.com/in/manojmohanan1988

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Thank you for coming...

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How to use multiple mongodb database in a nodejs
express mongodb application

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How to use multiple mongodb databases in a nodejs express mongodb application
Presentation content
1. Describe project
2. Live Demo
3. Explain code
4. Share git repo link

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How to use multiple mongodb databases in a nodejs express mongodb application
1. Describe project
Single express node js application need to serve two hosts.
Routes and models are the same but the mongodb database are different.

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How to use multiple mongodb databases in a nodejs express mongodb application
1. Describe project
Single express node js application need to serve two hosts.Routes and
models are the same but the mongodb database are different.
For example:
Node Js
Express Js
Mongoose
DB
DB
Host 1
Host 2
Application
mongodb://localhost/localhost-dev
mongodb://localhost/physical-dev-127
http://localhost:3000
http://127.0.0.1:3000
Routes
/ -- showing user json data from the database
/random -- insert random strings to user table
Available routes
1. http://localhost:3000/
2. http://locahost:3000/random
Available routes
1. http://127.0.0.1:3000/
2. http://127.0.0.1::3000/random
Master Server
Hosts pointed to the master server

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How to use multiple mongodb databases in a nodejs express mongodb application
Demo

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How to use multiple mongodb databases in a nodejs express mongodb application
Demo

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How to use multiple mongodb databases in a nodejs express mongodb application
Explain Code

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How to use multiple mongodb databases in a nodejs express mongodb application
Code 1:
Routes
Creating new user model
related to the current requested
hostname
Using user model
related to the current requested
hostname
Route definitions and Starting the server code

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How to use multiple mongodb databases in a nodejs express mongodb application
Code 2:
User schema
Here is the middleware code
for saving the mongodb instance by host
name to the global stack
Defining the global Stack

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How to use multiple mongodb databases in a nodejs express mongodb application
Git Repository:
https://github.com/phpremedy/Simple-Hack-Use-multipple-mongodb-databases-in-a-nodejs-express-mongodb-application

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The End
Thank you.