Using Mongo ReadPreference with Azure Cosmos DB's MongoDB API
Azure Cosmos DB is a globally distributed multi-model database. One of the supported APIs is the MongoDB API, which provides a document model and support for client drivers in many platforms. This sample shows you how to use MongoDB ReadPreference against Azure Cosmos DB with MongoDB API using native NodeJS Mongo driver.
Running this sample
Before you can run this sample, you must have the following prerequisites:
Then, clone this repository.
Next, substitute the
readFromRegionin App.Config with your Cosmos DB account's values.
npm installto install dependencies (mongo driver)
About the code
The code included in this sample is intended to illustrate using ReadPreference and tags with Azure Cosmos DB with the MongoDB API for performing reads across geo replicated read regions.