Book Image

Web Development with MongoDB and Node - Third Edition

Book Image

Web Development with MongoDB and Node - Third Edition

Overview of this book

Node.js builds fast, scalable network applications while MongoDB is the perfect fit as a high-performance, open source NoSQL database solution. The combination of these two technologies offers high performance and scalability and helps in building fast, scalable network applications. Together they provide the power for manage any form of data as well as speed of delivery. This book will help you to get these two technologies working together to build web applications quickly and easily, with effortless deployment to the cloud. You will also learn about angular 4, which consumes pure JSON APOIs from a hapi server. The book begins by setting up your development environment, running you through the steps necessary to get the main application server up-and-running. Then you will see how to use Node.js to connect to a MongoDB database and perform data manipulations. From here on, the book will take you through integration with third-party tools to interact with web apps. You will see how to use controllers and view models to generate reusable code that will reduce development time. Toward the end, the book supplies tests to properly execute your code and take your skills to the next level with the most popular frameworks for developing web applications. By the end of the book, you will have a running web application developed with MongoDB, Node.js, and some of the most powerful and popular frameworks.
Table of Contents (19 chapters)
Title Page
Credits
About the Authors
About the Reviewer
www.PacktPub.com
Customer Feedback
Preface

Updating the image controller


Let's create the controller and View model for the image page. The controller for the image will be a little more complex, as we'll write the logic to handle the uploading and saving of the image files via the form on the home page.

Displaying an image

The index function in the image controller will look almost identical to the index function from the home controller. The only difference is that instead of generating an array of images, we will build a ViewModel for a single image. However, the ViewModel for this image will have a little more information than the one from the home page since we are building a page that renders a more detailed view of an image (versus the thumbnail collection on the home page). The most noteworthy inclusion is that of a comments array for the image.

Taking another look at the original index function in our controllers/image.js file, we can see the simple existing res.render line of code:

res.render('image');

We want to replace this...