Create a database and collection for API for MongoDB for Azure Cosmos DB using Azure CLI

  • Article

APPLIES TO: MongoDB

The script in this article demonstrates creating a API for MongoDB database and collection.

If you don't have an Azure trail subscription, create a trial subscription before you begin.

Prerequisites

You can use the local Azure CLI.

  • This article requires version 2.30 or later. Run az --version to find the version. If you need to install or upgrade, see Install Azure CLI.

    Note

    Before you can use Azure CLI in Microsoft Azure operated by 21Vianet, please run az cloud set -n AzureChinaCloud first to change the cloud environment. If you want to switch back to Azure Public Cloud, run az cloud set -n AzureCloud again.

Sample script

Sign in to Azure

Use the following script to sign in using a different subscription, replacing <Subscription ID> with your Azure Subscription ID. If you don't have an Azure trail subscription, create a trial subscription before you begin.

az cloud set -n AzureChinaCloud
az login

subscription="<subscriptionId>" # add subscription here

az account set -s $subscription # ...or use 'az login'

For more information, see set active subscription or log in.

Run the script

# Create a MongoDB API database and collection

# Variable block
let "randomIdentifier=$RANDOM*$RANDOM"
location="chinaeast2"
failoverLocation="chinanorth2"
resourceGroup="msdocs-cosmosdb-rg-$randomIdentifier"
tag="create-mongodb-cosmosdb"
account="msdocs-account-cosmos-$randomIdentifier" #needs to be lower case
database="msdocs-db-mongo-cosmos"
serverVersion="4.0" #3.2, 3.6, 4.0
collection="collection1"

# Create a resource group
echo "Creating $resourceGroup in $location..."
az group create --name $resourceGroup --location "$location" --tags $tag

# Create a Cosmos account for MongoDB API
echo "Creating $account"
az cosmosdb create --name $account --resource-group $resourceGroup --kind MongoDB --server-version $serverVersion --default-consistency-level Eventual --enable-automatic-failover true --locations regionName="$location" failoverPriority=0 isZoneRedundant=False --locations regionName="$failoverLocation" failoverPriority=1 isZoneRedundant=False

# Create a MongoDB API database
echo "Creating $database"
az cosmosdb mongodb database create --account-name $account --resource-group $resourceGroup --name $database

# Define the index policy for the collection, with _id, wildcard, compound, unique and TTL
printf ' 
[ 
    {
        "key": {"keys": ["_id"]}
    },
    {
        "key": {"keys": ["$**"]}
    },
    {
        "key": {"keys": ["user_id", "user_address"]}, 
        "options": {"unique": "true"}
    },
    {
        "key": {"keys": ["_ts"]},
        "options": {"expireAfterSeconds": 2629746}
    }
]' > idxpolicy-$randomIdentifier.json

# Create a MongoDB API collection
echo "Creating $collection1"
az cosmosdb mongodb collection create --account-name $account --resource-group $resourceGroup --database-name $database --name $collection --shard "user_id" --throughput 400 --idx @idxpolicy-$randomIdentifier.json

# Clean up temporary index policy file
rm -f "idxpolicy-$randomIdentifier.json"

Clean up resources

Use the following command to remove the resource group and all resources associated with it using the az group delete command - unless you have an ongoing need for these resources. Some of these resources may take a while to create, as well as to delete.

az group delete --name $resourceGroup

Sample reference

This script uses the following commands. Each command in the table links to command specific documentation.

Command Notes
az group create Creates a resource group in which all resources are stored.
az cosmosdb create Creates an Azure Cosmos DB account.
az cosmosdb mongodb database create Creates an Azure Cosmos DB MongoDB API database.
az cosmosdb mongodb collection create Creates an Azure Cosmos DB MongoDB API collection.
az group delete Deletes a resource group including all nested resources.

Next steps

For more information on the Azure Cosmos DB CLI, see Azure Cosmos DB CLI documentation.