Create a Cosmos DB free-tier account and database with 400 RU

free-tier-arm-template-example

{
    "$schema": "https://schema.management.azure.com/schemas/2019-04-01/deploymentTemplate.json#",
    "contentVersion": "1.0.0.0",
    "parameters": {
        "databaseAccount_free_tier_name": {
            "defaultValue": "my-cosmos-account-name",
            "type": "String"
        }
    },
    "variables": {},
    "resources": [
        {
            "type": "Microsoft.DocumentDB/databaseAccounts",
            "apiVersion": "2020-03-01",
            "name": "[parameters('databaseAccount_free_tier_name')]",
            "location": "West US",
            "tags": {
                "defaultExperience": "Core (SQL)",
                "CosmosAccountType": "Non-Production"
            },
            "kind": "GlobalDocumentDB",
            "properties": {
                "enableFreeTier": true,
                "publicNetworkAccess": "Enabled",
                "enableAutomaticFailover": false,
                "enableMultipleWriteLocations": false,
                "isVirtualNetworkFilterEnabled": false,
                "virtualNetworkRules": [],
                "disableKeyBasedMetadataWriteAccess": false,
                "databaseAccountOfferType": "Standard",
                "consistencyPolicy": {
                    "defaultConsistencyLevel": "Session",
                    "maxIntervalInSeconds": 5,
                    "maxStalenessPrefix": 100
                },
                "locations": [
                    {
                        "locationName": "West US",
                        "provisioningState": "Succeeded",
                        "failoverPriority": 0,
                        "isZoneRedundant": false
                    }
                ],
                "capabilities": []
            }
        },
        {
            "type": "Microsoft.DocumentDB/databaseAccounts/sqlDatabases",
            "apiVersion": "2020-03-01",
            "name": "[concat(parameters('databaseAccount_free_tier_name'), '/database1')]",
            "dependsOn": [
                "[resourceId('Microsoft.DocumentDB/databaseAccounts', parameters('databaseAccount_free_tier_name'))]"
            ],
            "properties": {
                "resource": {
                    "id": "database1"
                },
                "options": {"throughput": 400}
            }
        }
    ]
}