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Learn MongoDB 4.x

You're reading from   Learn MongoDB 4.x A guide to understanding MongoDB development and administration for NoSQL developers

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Product type Paperback
Published in Sep 2020
Publisher Packt
ISBN-13 9781789619386
Length 610 pages
Edition 1st Edition
Tools
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Author (1):
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Doug Bierer Doug Bierer
Author Profile Icon Doug Bierer
Doug Bierer
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Table of Contents (22) Chapters Close

Preface 1. Section 1: Essentials
2. Introducing MongoDB 4.x FREE CHAPTER 3. Setting Up MongoDB 4.x 4. Essential MongoDB Administration Techniques 5. Section 2: Building a Database-Driven Web Application
6. Fundamentals of Database Design 7. Mission-Critical MongoDB Database Tasks 8. Using AJAX and REST to Build a Database-Driven Website 9. Section 3: Digging Deeper
10. Advanced MongoDB Database Design 11. Using Documents with Embedded Lists and Objects 12. Handling Complex Queries in MongoDB 13. Section 4: Replication, Sharding, and Security in a Financial Environment
14. Working with Complex Documents Across Collections 15. Administering MongoDB Security 16. Developing in a Secured Environment 17. Deploying a Replica Set 18. Replica Set Runtime Management and Development 19. Deploying a Sharded Cluster 20. Sharded Cluster Management and Development 21. Other Books You May Enjoy

Serving binary data directly from MongoDB

When browsing through the sample data for products, you might have noticed a field, productPhoto, with an exceptionally large amount of seemingly gibberish data. Here is a screenshot from the first product in the collection showing part of the first lines of data for this field:

This data represents Base64-encoded binary data, which, when decoded, is a photo of the product. In this section, we will show you how to cause a web script to display the product photo directly out of the database.

It is important to note that the technique described in this section has advantages and disadvantages over just uploading the photos directly to the images folder of your website's document root. The disadvantage is that this technique produces a larger HTML page, and the photo doesn't render as fast. The advantage is that you have more control over the photos as the database can be secured, and the only way an attacker can access the photo...
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