Script to expose commands for backing up and restoring Azure API Management configuration. See http://blogs.msdn.com/b/stuartleeks/archive/2015/04/29/azure-api-management-backing-up-and-restoring-configuration.aspx

APIM-backup.ps1

# This accompanies http://blogs.msdn.com/b/stuartleeks/archive/2015/04/29/azure-api-management-backing-up-and-restoring-configuration.aspx
#
# see http://azure.microsoft.com/en-us/documentation/articles/api-management-howto-disaster-recovery-backup-restore/
# Auth for ARM: https://msdn.microsoft.com/library/dn790557.aspx

function Get-ArmToken
{
    # Somewhat dirty approach as it uses values not directly obtained from cmdlets! But it saves provisioning an Azure AD application!
    [CmdletBinding()]
    param (
        [Parameter()]
        $Subscription = $null
    )
    process {
        if ($Subscription -eq $null){
            $Subscription = Get-AzureSubscription -Current
        }
        $tenantId = $subscription.TenantId

        $context = [Microsoft.Azure.Common.Extensions.AzureSession]::CurrentContext
        $authenticationFactory = [Microsoft.Azure.Common.Extensions.AzureSession]::AuthenticationFactory

        $showDialog = [Microsoft.Azure.Common.Extensions.Authentication.ShowDialog]::Auto
        $endpoint = [Microsoft.Azure.Common.Extensions.Models.AzureEnvironment+Endpoint]::ActiveDirectoryServiceEndpointResourceId
        $accessTokenResponse = $authenticationFactory.Authenticate($context.Account, $context.Environment, $tenantId, $null, $showDialog, $endpoint)
        $accessToken = $accessTokenResponse.AccessToken

        $accessToken
    }
}
function Start-ApimBackup {
    [CmdletBinding()]
    param(
        [Parameter(Mandatory=$true)]
        [string]
        $Token,
        [Parameter(Mandatory=$true)]
        [Microsoft.WindowsAzure.Commands.Profile.Models.PSAzureSubscription]
        $Subscription,
        [Parameter(Mandatory=$true)]
        [string]
        $ResourceGroupName,
        [Parameter(Mandatory=$true)]
        [string]
        $ServiceName,
        [Parameter(Mandatory=$true)]
        [string]
        $StorageAccountName,
        [Parameter(Mandatory=$true)]
        [string]
        $StorageAccessKey,
        [Parameter(Mandatory=$true)]
        [string]
        $StorageContainerName,
        [Parameter(Mandatory=$true)]
        [string]
        $BackupName
    )
    process {
        if ($Subscription -eq $null){
            $Subscription = Get-AzureSubscription -Current
        }
        $subscriptionId = $Subscription.SubscriptionId
        $url = "https://management.azure.com/subscriptions/$subscriptionId/resourceGroups/$ResourceGroupName/providers/Microsoft.ApiManagement/service/$ServiceName/backup?api-version=2014-02-14"
        $body = "{  
                    storageAccount : `"$StorageAccountName`",  
                    accessKey : `"$StorageAccessKey`",  
                    containerName : `"$StorageContainerName`",  
                    backupName : `"$BackupName`"  
                }"
        $headers = @{ "Authorization" = "Bearer $Token"}
        try 
        {
            $operationResult = Invoke-WebRequest -Method Post -Uri $url -Headers $headers -Body $body -ContentType "application/json"
            return New-Object PSObject -Property @{
                Success = $operationResult.StatusCode -eq 202
                StatusCode=$operationResult.StatusCode
                StatusDescription = $operationResult.StatusDescription
                StatusLocation = $operationResult.Headers["Location"] 
            }
        }
        catch
        {
            return New-Object PSObject -Property @{
                Success = $false
                StatusCode = -1
                StatusDescription = $error[0].Exception.Message
                StatusLocation = $null
            }
        }
    }
}
function Start-ApimRestore {
    [CmdletBinding()]
    param(
        [Parameter(Mandatory=$true)]
        [string] 
        $Token,
        [Parameter(Mandatory=$true)]
        [Microsoft.WindowsAzure.Commands.Profile.Models.PSAzureSubscription] 
        $Subscription,
        [Parameter(Mandatory=$true)]
        [string] 
        $ResourceGroupName,
        [Parameter(Mandatory=$true)]
        [string] 
        $ServiceName,
        [Parameter(Mandatory=$true)]
        [string] 
        $StorageAccountName,
        [Parameter(Mandatory=$true)]
        [string] 
        $StorageAccessKey,
        [Parameter(Mandatory=$true)]
        [string] 
        $StorageContainerName,
        [Parameter(Mandatory=$true)]
        [string] 
        $BackupName
    )
    process {
        if ($Subscription -eq $null){
            $Subscription = Get-AzureSubscription -Current
        }
        $subscriptionId = $Subscription.SubscriptionId
        $url = "https://management.azure.com/subscriptions/$subscriptionId/resourceGroups/$ResourceGroupName/providers/Microsoft.ApiManagement/service/$ServiceName/restore?api-version=2014-02-14"
        $body = "{  
                    storageAccount : `"$StorageAccountName`",  
                    accessKey : `"$StorageAccessKey`",  
                    containerName : `"$StorageContainerName`",  
                    backupName : `"$BackupName`"  
                }"
        $headers = @{ "Authorization" = "Bearer $Token"}
        try 
        {
            $operationResult = Invoke-WebRequest -Method Post -Uri $url -Headers $headers -Body $body -ContentType "application/json"
            return New-Object PSObject -Property @{
                Success = $operationResult.StatusCode -eq 202
                StatusCode = $operationResult.StatusCode
                StatusDescription = $operationResult.StatusDescription
                StatusLocation = $operationResult.Headers["Location"] 
            }
        }
        catch
        {
            return New-Object PSObject -Property @{
                Success = $false
                StatusCode = -1
                StatusDescription = $error[0].Exception.Message
                StatusLocation = $null
            }
        }
    }
}
function Get-ApimOperationStatus {
    [CmdletBinding()]
    param(
        [Parameter(Mandatory=$true)]
        [string]
        $Token,
        [Parameter(Mandatory=$true)]
        [string]
        $StatusLocation
    )
    process {
        $headers = @{ "Authorization" = "Bearer $Token"}
        $operationResult = Invoke-WebRequest -Method Get -Uri $StatusLocation -Headers $headers
        return New-Object psobject -Property @{
            Success = ($operationResult.StatusCode -eq 200) -or ($operationResult.StatusCode -eq 202)
            Completed = $operationResult.StatusCode -eq 200
            StatusCode = $operationResult.StatusCode
        }
    }
}
function Wait-ApimOperation {
    [CmdletBinding()]
    param(
        [Parameter(Mandatory=$true)]
        [string]
        $Token,
        [Parameter(Mandatory=$true)]
        [string]
        $StatusLocation,
        [Parameter()]
        [int]
        $RetryTime = 20 # seconds
    )
    process {
        $response = $null
        while ($true) {
            $status = Get-ApimOperationStatus -Token $Token -StatusLocation $StatusLocation
            if((-not $status.Success) -or $status.Completed){
                return $status
            }
            "Waiting..." | Write-Host
            Start-Sleep -Seconds $RetryTime
        }
    }
}