Develop for Azure NetApp Files with REST API using PowerShell

Article
09/30/2022

The REST API for the Azure NetApp Files service defines HTTP operations against resources such as the NetApp account, the capacity pool, the volumes, and snapshots. This article helps you get started with using the Azure NetApp Files REST API using PowerShell.

Azure NetApp Files REST API specification

The REST API specification for Azure NetApp Files is published through GitHub:

https://github.com/Azure/azure-rest-api-specs/tree/main/specification/netapp/resource-manager

Access the Azure NetApp Files REST API

Install the Azure CLI if you haven't done so already.
Create a service principal in your Microsoft Entra ID:
1. Verify that you have sufficient permissions.
2. Enter the following command in the Azure CLI:
```
$RBAC_SP = az ad sp create-for-rbac --name <YOURSPNAMEGOESHERE> --role Contributor --scopes /subscriptions/<subscription-id> | ConvertFrom-Json         
```
  To display the service principal information, type $RBAC_SP and press Enter.
```
appId       : appID displays here
displayName : displayName
name        : http://SP_Name
password    : super secret password
tenant      : your tenant shows here
```
  The output is saved in the variable object $RBAC_SP. We will use the $RBAC_SP.appId, $RBAC_SP.password, and $RBAC_SP.tenant values.
Request an OAuth access token:

The examples in this article use PowerShell. You can also use various API tools such as Postman, Insomnia, and Paw.

Using the $RBAC_SP variable, we will now get the Bearer token.
```
$body = "grant_type=client_credentials&client_id=$($RBAC_SP.appId)&client_secret=$($RBAC_SP.password)&resource=https://management.azure.com/"
$BearerToken = Invoke-RestMethod -Method Post -body $body -Uri https://login.microsoftonline.com/$($RBAC_SP.tenant)/oauth2/token
```
The output provides a Bearer Token object. You can see the access token by typing $BearerToken.access_token. It looks similar to the following example:
```
eyJ0eXAiOiJKV1QiLCJhbGciOiJSUzI1NiIsIng1dCI6Im5iQ3dXMTF3M1hrQi14VWFYd0tSU0xqTUhHUSIsImtpZCI6Im5iQ3dXMTF3M1hrQi14VWFYd0tSU0xqTUhHUSJ9
```
The displayed token is valid for 3600 seconds. After that, you need to request a new token. The token is saved in the variable and will be used in the next step.

Create the headers object:

$headers = New-Object "System.Collections.Generic.Dictionary[[String],[String]]"
$headers.Add("Authorization", "Bearer $($BearerToken.access_token)")
$headers.Add("Content-Type", "application/json")

Send a test call and include the token to validate your access to the REST API:

$SubId = (Get-AzContext).Subscription.Id 
Invoke-RestMethod -Method Get -Headers $headers -Uri https://management.azure.com/subscriptions/$SubId/providers/Microsoft.Web/sites?api-version=2022-05-01

Examples using the API

This article uses the following URL for the baseline of requests. This URL points to the root of the Azure NetApp Files namespace.

https://management.azure.com/subscriptions/$SUBID/resourceGroups/$RESOURCEGROUP/providers/Microsoft.NetApp/netAppAccounts?api-version=2022-05-01

You should assign variable values before running the following examples with your own values. PowerShell variables are accessed by typing $variablename. PowerShell variables are assigned by using $variablename = “value”.

$Region = “westus2" 
$ResourceGroup = “MYTest-RG-63" 
$ANFvnetname = “NetAppFilesVnet-63"
$ANFvnetCIDR = “10.63.64.0/18"
$ANFsubnet = “NetAppFilesSubnet-63"
$ANFsubnetCIDR = “10.63.120.0/28"
$ANFsubnetID = “/subscriptions/$SubID/resourceGroups/$ResourceGroup/providers/Microsoft.Network/virtualNetworks/$ANFvnetname/subnets/$ANFSubnet"
$ANFAccount = “TestoftheAPI"
$ANFCapacityPool = “ANFTestPool"
$ANFServicelevel = “Standard"
$ANFVolume = “ANFTestVolume"
$ANFVolumeShareName = “Share-TEST"
$ANFVolumesize = 100GB
$ANFSnapshot = “ANFTestSnapshot"

PUT request examples

You use a PUT request to create new objects in Azure NetApp Files, as the following examples show. The body of the PUT request includes the JSON formatted data for the changes. It must be included in the PowerShell command as text or referenced as a file. To reference the body as a file, save the json example to a file and add -body (Get-Content @<filename>) to the PowerShell command.

    #create a NetApp account  
    $body = "{ 
        `"name`": `"$ANFAccount`", 
        `"type`": `"Microsoft.NetApp/netAppAccounts`", 
        `"location`": `"$Region`", 
        `"properties`": { 
            `"name`": `"$ANFAccount`" 
        }
    } "

    $api_version = "2020-02-01"
    Invoke-RestMethod -Method 'PUT' -Headers $headers -Body $body "https://management.azure.com/subscriptions/$SubID/resourceGroups/$ResourceGroup/providers/Microsoft.NetApp/netAppAccounts/$ANFAccount`?api-version=$api_version"

    #create a capacity pool  
    $body = "{
      `"location`": `"$Region`",
      `"properties`": {
        `"size`": " + 4TB + ",
        `"serviceLevel`": `"Standard`"
      }
    }"
    $api_version = "2020-02-01"
    Invoke-RestMethod -Method 'PUT' -Headers $headers -Body $body "https://management.azure.com/subscriptions/$SubID/resourceGroups/$ResourceGroup/providers/Microsoft.NetApp/netAppAccounts/$ANFAccount/capacityPools/$ANFCapacityPool`?api-version=$api_version"

    #create a volume  
    $body = "{
        `"name`": `"$ANFVolume`",
        `"type`": `"Microsoft.NetApp/netAppAccounts/capacityPools/volumes`",
        `"location`": `"$Region`",
        `"properties`": {
            `"serviceLevel`": `"$ANFServicelevel`",
            `"usageThreshold`": `"$ANFVolumesize`",
            `"creationToken`": `"$ANFVolumeShareName`",
            `"snapshotId`": `"`",
            `"subnetId`": `"$ANFSubnetID`"
        }
    }"
    $api_version = "2020-02-01"
    Invoke-RestMethod -Method 'PUT' -Headers $headers -Body $body "https://management.azure.com/subscriptions/$SubID/resourceGroups/$ResourceGroup/providers/Microsoft.NetApp/netAppAccounts/$ANFAccount/capacityPools/$ANFCapacityPool/volumes/$ANFVolume`?api-version=$api_version"

    #create a volume snapshot
    $body = "{
        `"name`": `"$ANFAccount/$ANFCapacityPool/$ANFVolume/$ANFSnapshot`",
        `"type`": `"Microsoft.NetApp/netAppAccounts/capacityPools/Volumes/Snapshots`",
        `"location`": `"$Region`",
        `"properties`": {
            `"name`": `"$ANFSnapshot`",
            `"fileSystemId`": `"$FileSystemID`"
        }
    }"
    $api_version = '2020-02-01'
    Invoke-RestMethod -Method 'PUT' -Headers $headers -Body $body "https://management.azure.com/subscriptions/$SubID/resourceGroups/$ResourceGroup/providers/Microsoft.NetApp/netAppAccounts/$ANFAccount/capacityPools/$ANFCapacityPool/volumes/$ANFVolume/Snapshots/$ANFSnapshot`?api-version=$api_version"

JSON examples

The following example shows how to create a NetApp account:

    { 
        "name": "MYNETAPPACCOUNT", 
        "type": "Microsoft.NetApp/netAppAccounts", 
        "location": "westus2", 
        "properties": { 
            "name": "MYNETAPPACCOUNT" 
        }
    }

The following example shows how to create a capacity pool:

    {
        "name": "MYNETAPPACCOUNT/POOLNAME",
        "type": "Microsoft.NetApp/netAppAccounts/capacityPools",
        "location": "westus2",
        "properties": {
            "name": "POOLNAME",
            "size": "4398046511104",
            "serviceLevel": "Premium"
        }
    }

The following example shows how to create a new volume. (The default protocol for the volume is NFSV3.)

    {
        "name": "MYNEWVOLUME",
        "type": "Microsoft.NetApp/netAppAccounts/capacityPools/volumes",
        "location": "westus2",
        "properties": {
            "serviceLevel": "Premium",
            "usageThreshold": "322122547200",
            "creationToken": "MY-FILEPATH",
            "snapshotId": "",
            "subnetId": "/subscriptions/$SUBID/resourceGroups/$RESOURCEGROUP/providers/Microsoft.Network/virtualNetworks/VNETGOESHERE/subnets/MYDELEGATEDSUBNET.sn"
        }
    }

The following example shows how to create a snapshot of a volume:

    {
        "name": "apitest2/apiPool01/apiVol01/snap02",
        "type": "Microsoft.NetApp/netAppAccounts/capacityPools/Volumes/Snapshots",
        "location": "westus2",
        "properties": {
            "name": "snap02",
            "fileSystemId": "0168704a-bbec-da81-2c29-503825fe7420"
        }
    }

Note

You need to specify fileSystemId for creating a snapshot. You can obtain the fileSystemId value with a GET request to a volume.

GET request examples

An error occurs if the resource does not exist. You use a GET request to query objects of Azure NetApp Files in a subscription, as the following examples show:

#get NetApp accounts 
Invoke-RestMethod -Method Get -Headers $headers -Uri https://management.azure.com/subscriptions/$SUBID/resourceGroups/$ResourceGroup/providers/Microsoft.NetApp/netAppAccounts?api-version=2022-05-01 | ConvertTo-Json

#get capacity pools for NetApp account 
Invoke-RestMethod -Method Get -Headers $headers -Uri https://management.azure.com/subscriptions/$SUBID/resourceGroups/$ResourceGroup/providers/Microsoft.NetApp/netAppAccounts/$ANFACCOUNT/capacityPools?api-version=2022-05-01 | ConvertTo-Json

#get volumes in NetApp account & capacity pool 
Invoke-RestMethod -Method Get -Headers $headers -Uri https://management.azure.com/subscriptions/$SUBID/resourceGroups/$ResourceGroup/providers/Microsoft.NetApp/netAppAccounts/$ANFACCOUNT/capacityPools/$ANFCAPACITYPOOL/volumes?api-version=2022-05-01 | ConvertTo-Json

#get snapshots for a volume 
Invoke-RestMethod -Method Get -Headers $headers -Uri https://management.azure.com/subscriptions/$SUBID/resourceGroups/$ResourceGroup/providers/Microsoft.NetApp/netAppAccounts/$ANFACCOUNT/capacityPools/$ANFCAPACITYPOOL/volumes/$ANFVOLUME/snapshots?api-version=2022-05-01 | ConvertTo-Json

Complete PowerShell scripts

This section shows sample scripts for PowerShell.

    <#
    Disclaimer 
    The sample scripts are not supported under any Microsoft standard support program or service. The sample scripts are provided AS IS without warranty of any kind. Microsoft further disclaims all implied warranties including, without limitation, any implied warranties of merchantability or of fitness for a particular purpose. The entire risk arising out of the use or performance of the sample scripts and documentation remains with you. In no event shall Microsoft, its authors, or anyone else involved in the creation, production, or delivery of the scripts be liable for any damages whatsoever (including, without limitation, damages for loss of business profits, business interruption, loss of business information, or other pecuniary loss) arising out of the use of or inability to use the sample scripts or documentation, even if Microsoft has been advised of the possibility of such damages.
    #>
    
    $Region = "westus2"
    $SubID = (Get-AzureRmContext).Subscription.Id
    $MyRandomID =  Get-Random -Minimum 100 -Maximum 999
    $ResourceGroup = "MYTest-RG-" + $MyRandomID
    $ANFAccount = "ANFTestAccount-$Region-" + $MyRandomID
    $ANFCapacityPool =  "ANFTestPool-$Region-" + $MyRandomID
    $ANFVolume = "ANFTestVolume-$Region-" + $MyRandomID
    $ANFVolumesize = 100GB
    $ANFVolumeShareName = "Share-" + $MyRandomID
    $ANFSnapshot = "ANFTestSnapshot-$Region-" + $MyRandomID
    $ANFServicelevel = "Standard"
    $Octet2 = Get-Random -Minimum 1 -Maximum 254
    $ANFvnetname = "NetAppFilesVnet-$Octet2-$Region-" + $MyRandomID
    $ANFvnetCIDR = "10.$Octet2.64.0/18"
    $ANFsubnet = "NetAppFilesSubnet-$Octet2-$Region-" + $MyRandomID
    $ANFsubnetCIDR = "10.$Octet2.120.0/28"
    $vmsubnet = "VM-subnet-$Octet2-$Region-" + $MyRandomID
    $vmsubnetCIDR = "10.$Octet2.121.0/24"
    
    $BearerToken = (az account get-access-token | ConvertFrom-Json).accessToken
    
    $headers = New-Object "System.Collections.Generic.Dictionary[[String],[String]]"
    $headers.Add("Authorization", "Bearer $BearerToken")
    $headers.Add("Content-Type", "application/json")
    
    " ** Creating Resource Group $ResourceGroup *************"
    $api_version = "2020-01-01"
    $body = "    {
      `"location`": `"$Region`",
      `"name`": `"$ResourceGroup`"
    },"
    $response = Invoke-RestMethod -Method 'PUT' -Headers $headers -Body $body -Uri "https://management.azure.com/subscriptions/$SubID/resourcegroups/$ResourceGroup`?api-version=$api_version" 
    While ($response.properties.provisioningState -notmatch "Succeeded") {
       $response.properties.provisioningState
       sleep 5
       $response = Invoke-RestMethod -Method ‘GET’ -Headers $headers -Uri "https://management.azure.com/subscriptions/$SubID/resourceGroups/$ResourceGroup`?api-version=$api_version" 
       } 
    
    " ** Creating Virtual Network $ANFvnetname *************"
    $body = "{
      `"properties`": {
        `"addressSpace`": {
          `"addressPrefixes`": [
            `"$ANFvnetCIDR`"
          ]
        },
        `"subnets`": [
          {
            `"name`": `"$ANFsubnet`",
            `"properties`": {
              `"addressPrefix`": `"$ANFsubnetCIDR`",
              `"delegations`": [
                {
                  `"name`": `"Microsoft.NetApp`",
                  `"properties`": {
                    `"serviceName`": `"Microsoft.NetApp/volumes`"
                  }
                }
              ]
            }
          },
         {
            `"name`": `"$vmsubnet`",
            `"properties`": {
              `"addressPrefix`": `"$vmsubnetCIDR`"
                }
         }
        ]
      },
      `"location`": `"$Region`"
    }"
    
    $api_version = "2020-03-01"
    $response = Invoke-RestMethod -Method 'PUT' -Headers $headers -Body $body -Uri "https://management.azure.com/subscriptions/$SubID/resourceGroups/$ResourceGroup/providers/Microsoft.Network/virtualNetworks/$ANFvnetname`?api-version=$api_version" 
    While ($response.properties.provisioningState -notmatch "Succeeded") {
           sleep 5
           $response = Invoke-RestMethod -Method ‘GET’ -Headers $headers -Uri "https://management.azure.com/subscriptions/$SubID/resourceGroups/$ResourceGroup/providers/Microsoft.Network/virtualNetworks/$ANFvnetname`?api-version=$api_version" 
           $response.properties.provisioningState
           }  
    $ANFsubnetID = $response.properties.subnets.id[0]
    
    " ** Creating ANF Account $ANFAccount *************"
    $body = "{ 
        `"name`": `"$ANFAccount`", 
        `"type`": `"Microsoft.NetApp/netAppAccounts`", 
        `"location`": `"$Region`", 
        `"properties`": { 
            `"name`": `"$ANFAccount`" 
        }
    } "
    $api_version = "2020-02-01"
    $response = Invoke-RestMethod -Method 'PUT' -Headers $headers -Body $body -Uri "https://management.azure.com/subscriptions/$SubID/resourceGroups/$ResourceGroup/providers/Microsoft.NetApp/netAppAccounts/$ANFAccount`?api-version=$api_version" 
    $response.properties.provisioningState
    While ($response.properties.provisioningState -notmatch "Succeeded") {
       $response.properties.provisioningState
       sleep 5
       $response = Invoke-RestMethod -Method ‘GET’ -Headers $headers -Uri "https://management.azure.com/subscriptions/$SubID/resourceGroups/$ResourceGroup/providers/Microsoft.NetApp/netAppAccounts/$ANFAccount`?api-version=$api_version" 
       }  
    
    " ** Creating Capacity Pool $ANFCapacityPool *************"
    $body = "{
      `"location`": `"$Region`",
      `"properties`": {
        `"size`": " + 4TB + ",
        `"serviceLevel`": `"Standard`"
      }
    }"
    $api_version = "2020-02-01"
    $response = Invoke-RestMethod -Method 'PUT' -Headers $headers -Body $body -Uri "https://management.azure.com/subscriptions/$SubID/resourceGroups/$ResourceGroup/providers/Microsoft.NetApp/netAppAccounts/$ANFAccount/capacityPools/$ANFCapacityPool`?api-version=$api_version" 
    $response.properties.provisioningState
    While ($response.properties.provisioningState -notmatch "Succeeded") {
       $response.properties.provisioningState
       sleep 5
       $response = Invoke-RestMethod -Method ‘GET’ -Headers $headers -Uri "https://management.azure.com/subscriptions/$SubID/resourceGroups/$ResourceGroup/providers/Microsoft.NetApp/netAppAccounts/$ANFAccount`?api-version=$api_version" 
       }  
    
    " ** Creating ANF Volume $ANFVolume *************"
    $body = "{
        `"name`": `"$ANFVolume`",
        `"type`": `"Microsoft.NetApp/netAppAccounts/capacityPools/volumes`",
        `"location`": `"$Region`",
        `"properties`": {
            `"serviceLevel`": `"$ANFServicelevel`",
            `"usageThreshold`": `"$ANFVolumesize`",
            `"creationToken`": `"$ANFVolumeShareName`",
            `"snapshotId`": `"`",
            `"subnetId`": `"$ANFSubnetID`"
        }
    }"
    $api_version = "2020-02-01"
    $response = Invoke-RestMethod -Method 'PUT' -Headers $headers -Body $body -Uri "https://management.azure.com/subscriptions/$SubID/resourceGroups/$ResourceGroup/providers/Microsoft.NetApp/netAppAccounts/$ANFAccount/capacityPools/$ANFCapacityPool/volumes/$ANFVolume`?api-version=$api_version" 
    While ($response.properties.provisioningState -notmatch "Succeeded") {
       $response.properties.provisioningState
       sleep 15
       $response = Invoke-RestMethod -Method ‘GET’ -Headers $headers -Uri "https://management.azure.com/subscriptions/$SubID/resourceGroups/$ResourceGroup/providers/Microsoft.NetApp/netAppAccounts/$ANFAccount/capacityPools/$ANFCapacityPool/volumes/$ANFVolume`?api-version=$api_version" 
       } 
    $Volume = $response 
    $FileSystemID = $response.properties.fileSystemId
    
    " ** Creating ANF Volume Snapshot $ANFSnapshot *************"
    $body = "{
        `"name`": `"$ANFAccount/$ANFCapacityPool/$ANFVolume/$ANFSnapshot`",
        `"type`": `"Microsoft.NetApp/netAppAccounts/capacityPools/Volumes/Snapshots`",
        `"location`": `"$Region`",
        `"properties`": {
            `"name`": `"$ANFSnapshot`",
            `"fileSystemId`": `"$FileSystemID`"
        }
    }"
    $api_version = '2020-02-01'
    $response = Invoke-RestMethod -Method 'PUT' -Headers $headers -Body $body -Uri "https://management.azure.com/subscriptions/$SubID/resourceGroups/$ResourceGroup/providers/Microsoft.NetApp/netAppAccounts/$ANFAccount/capacityPools/$ANFCapacityPool/volumes/$ANFVolume/Snapshots/$ANFSnapshot`?api-version=$api_version" 
    While ($response.properties.provisioningState -notmatch "Succeeded") {
       $response.properties.provisioningState
       sleep 5
       $response = Invoke-RestMethod -Method ‘GET’ -Headers $headers -Uri "https://management.azure.com/subscriptions/$SubID/resourceGroups/$ResourceGroup/providers/Microsoft.NetApp/netAppAccounts/$ANFAccount/capacityPools/$ANFCapacityPool/volumes/$ANFVolume/Snapshots/$ANFSnapshot`?api-version=$api_version" 
       }

Next steps

See the Azure NetApp Files REST API reference

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