Book Image

Learning Azure DocumentDB

By : Riccardo Becker
Book Image

Learning Azure DocumentDB

By: Riccardo Becker

Overview of this book

Learning DocumentDB adopts a practical, step-by-step approach to help you learn the basics of DocumentDB and use your new-found abilities in real-life scenarios and enterprise solutions. We start with the absolute basics, such as setting up a DocumentDB environment, and guide you through managing your databases, and executing simple and complex queries. Next, we explain how to work with DocumentDB using the open REST protocol, and demonstrate how JavaScript works with DocumentDB. We’ll also show you how to authenticate and execute queries. Moving on, you’ll find out how to use DocumentDB from within Node.js to kick-start your Node.js projects. Next, you’ll discover how to increase the performance of your DocumentDB database and fine-tune it. Finally, you’ll get to grips with using DocumentDB in conjunction with other services offered from the Microsoft Azure platform.

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Learning Azure DocumentDB
Riccardo Becker
Nov, 2015 | 152 pages
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Table of Contents (15 chapters)
Learning Azure DocumentDB
Learning Azure DocumentDB
Credits
Credits
About the Author
About the Author
About the Reviewers
About the Reviewers
www.PacktPub.com
www.PacktPub.com
Preface
Preface
Free Chapter
1
Getting Started with DocumentDB
Getting Started with DocumentDB
What is DocumentDB?
Exploring the data model
DocumentDB versus other databases
Understanding the price model
Building your first application
Summary
2
Setting up and Managing Your Database
Setting up and Managing Your Database
Managing your keys
Using resource tokens
Managing alerts
Summary
3
Basic Querying
Basic Querying
Creating resources
Reading resources
Updating documents
Deleting documents
Summary
4
Advanced Querying
Advanced Querying
Using the SELECT statement
Using the FROM clause
Using the WHERE clause
Using built-in functions
Building stored procedures
Building triggers
Building user-defined functions
Using LINQ to DocumentDB
Summary
5
Using REST to Access Your Database
Using REST to Access Your Database
Understanding the basics of REST
Querying DocumentDB resources
Getting all databases
Adding a document
Summary
6
Using Node.js to Access Your Database
Using Node.js to Access Your Database
Introducing Node.js
Utilizing DocumentDB from Node.js
Summary
7
Advanced Techniques
Advanced Techniques
Introducing indexes
Partitioning data
Managing performance
Using transactions
Setting consistency levels
Summary
8
Putting Your Database at the Heart of Azure Solutions
Putting Your Database at the Heart of Azure Solutions
Introducing an Internet of Things scenario
Increasing search capabilities
Enhancing security
Migrating data
Summary
Index
Index

Using resource tokens

Resource tokens are tokens associated with permission resources and establish connections between a user and the permissions of that user for resources stored in DocumentDB (collections, documents, and stored procedures).

Creating resource tokens

Imagine a scenario where a multi-tenant web application needs access to your database. For each tenant, a separate collection inside the database is created. The web application only needs access to the specific collection for the tenant. We can solve this by creating a resource token only for the new collection.

The following steps are performed to achieve this goal:

  1. Create a tenant-specific collection.

  2. Create a resource token for that collection.

  3. Have the web application use the resource token to gain access to the collection.

Creating a collection

The following C# code snippet creates a collection for a tenant called Contoso:

  // Check if collection already exists
  DocumentCollection tenantCollection =
  client.CreateDocumentCollectionQuery...
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