In addition to that, it also comes with docker image which you can use to run the emulator in a docker container but only on windows containers. You must also have administrative privileges to be able to install the client.

Operating SystemĪt the moment, the emulator only supports 64-bit versions of Windows (Server 2012 R2, Server 2016, Server 2019, Windows 10) which demands a minimum of 2GB of RAM and 10GB of free disk space. The emulator allows you to create a single account with multiple (up to 25 fixed sized, or 5 unlimited) containers. 💡 However keep in mind that the data explorer provided with the service only supports SQL API at the moment. In fact the emulator hides all abstractions from you and lets you focus on adding value to your team or organisation. Azure Cosmos DB Emulator also supports these APIs although the underlying implementation details are different to the real service on Azure. Features API setĪzure Cosmos DB supports SQL API, as well as Table, MongoDB, Cassandra, and Gremlin which to me covers many scenarios from migrating an existing database from on-premise to Azure, modernising your legacy application, or create a brand new one. You have other advantages such as ability to work offline and or even have an Azure subscription. That’s when Cosmos DB Emulator really comes to the rescue. Let’s be honest, there are other ways to work with Cosmos DB without paying any money such as a Free Trial Account which gives you $200 dollars to spend over a year, or even the Cosmos DB Query Playground which is an interactive website which helps you to learn the query syntax and provides you with a set of pre-defined JSON documents to work with.īut eventually you either run out of money, or your product is live and your developers want to develop new features and fix bugs to be released very quickly. In addition, no matter whether you’re using Azure CosmosDB or not, at some point you might have to test some sort of DocumentDB locally. The Azure Cosmos DB Emulator is a service provided by Microsoft which allows you to emulate the Cosmos DB Service locally for development purposes. However, it could be a bit costly for developers to spin up an instance during their development especially if they don’t know some of the basics such as what should be the partition key, what throughput they should select and so on that much. Azure Cosmos DB is one of the foundational services in Azure, which provides high availability, global scale and an impressive performance.

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