Powershell script to generate postman env json file (#216)

Co-authored-by: v-peknathe <[email protected]>

samples/sample-postman-queries/script/GeneratePostmanEnvironment.ps1

@@ -0,0 +1,156 @@
+param (
+
+    #FHIR Service Resource Id
+    [Parameter(Mandatory=$true)]
+    [string]$fhirServiceResourceId
+)
+
+function parseFhirServiceResourceId{
+    param (
+       [string]$resourceID
+   )
+   $resourceIdValuesArray = $resourceID.Split('/')
+   $workspace = 0..($resourceIdValuesArray.Length -1) | Where-Object {$resourceIdValuesArray[$_] -eq 'workspaces'}
+   $fhirservice = 0..($resourceIdValuesArray.Length -1) | Where-Object {$resourceIdValuesArray[$_] -eq 'fhirservices'}
+
+   # Health Workspace name of FHIR Service instance
+   $workspaceOutput = ''
+   if(!$workspace -eq ''){
+     $workspaceOutput = $resourceIdValuesArray.get($workspace+1)
+   }
+   else{
+    Write-Host -ForegroundColor Red "Invalid Fhir Service Resource Id: Workspace name is missing"
+    Exit
+   }
+
+   # Fhir service instance name
+   $fhirserviceOutput = ''
+   if(!$fhirservice -eq ''){
+     $fhirserviceOutput = $resourceIdValuesArray.get($fhirservice+1)
+   }
+   else{
+    Write-Host -ForegroundColor Red "Invalid Fhir Service Resource Id: Fhir service name is missing"
+    Exit
+   }
+
+   $result = $workspaceOutput,$fhirserviceOutput
+   return $result
+}
+
+try {
+
+    $parseFhirServiceResourceIdOutput = parseFhirServiceResourceId -resourceID $fhirServiceResourceId
+
+    # Health Workspace name of FHIR Service instance
+    $WorkspaceName = $parseFhirServiceResourceIdOutput[0]
+
+    # Fhir service instance name
+    $FHIRServiceName = $parseFhirServiceResourceIdOutput[1]
+
+    # Check Az Module and user logged in    
+    Write-Host('Checking AZ module installed');
+    $Azmodule_check = Get-Command az -ErrorVariable Azmodule_check -ErrorAction SilentlyContinue
+    if (!$Azmodule_check) {
+        Write-Host "Az CLI is not installed. Please install the az cli and re-run the script." -ForegroundColor Red
+        Exit
+    }
+
+    # Log in the user and select subscription
+    Write-Host('Log in and select the subscription');
+    az login
+
+    # Create new client application in Azure AD
+    Write-Host('Create new client application in Azure AD');
+    $randomString = ([System.Guid]::NewGuid()).ToString()
+    $appregname ='app-'+$FHIRServiceName+'-'+$randomString
+
+    $clientid=$(az ad app create --display-name $appregname --sign-in-audience AzureADMultipleOrgs --query appId --output tsv)
+    if(!$clientid)
+    {
+        Write-Host -ForegroundColor Red "An error occurred: Failed to generate new client app registration"
+        Exit
+    }
+
+    # Create new client secret
+    Write-Host('Create new client secret');
+    $clientsecretname="appsecret-"+$randomString
+    $clientsecret=$(az ad app credential reset --id $clientid --append --display-name $clientsecretname --query password --output tsv)
+    if(!$clientsecret)
+    {
+        Write-Host -ForegroundColor Red "An error occurred: Failed to generate new client app secret"
+        Exit
+    }
+
+    # Create service principal
+    Write-Host('Create new service principal');
+    $spid=$(az ad sp create --id $clientid --query id --output tsv)
+    if(!$spid)
+    {
+        Write-Host -ForegroundColor Red "An error occurred: Failed to generate new client app service principal"
+        Exit
+    }
+
+    # Get the tenant ID
+    Write-Host('Get the tenant id');
+    $tenantId = $(az account list --query "[?isDefault].tenantId | [0]" --output tsv)
+
+    # Role name
+    $fhirrole="FHIR Data Contributor"
+
+    # Assign FHIR Contributor role to the client application in FHIR service instance
+    Write-Host('Assign Fhir Data Contributor role to Fhir service instance');
+    $output = az role assignment create --assignee-object-id $spid --assignee-principal-type ServicePrincipal --role "$fhirrole" --scope $fhirServiceResourceId
+    if(!$output)
+    {
+        Write-Host -ForegroundColor Red "An error occurred: Failed to assign Fhir Data Contributor role to Fhir service instance"
+        Exit
+    }
+
+    Write-Host('Generate postman environment file');
+    # Create the environment structure
+    $environment = @{
+        id = ([System.Guid]::NewGuid()).ToString()
+        name = "$WorkspaceName-$FHIRServiceName Environment"
+        values = @(
+            @{
+                key = "clientId"
+                value = $clientid
+                enabled = $true
+            },
+            @{
+                key = "clientSecret"
+                value = $clientsecret
+                enabled = $true
+            },
+        @{
+                key = "fhirUrl"
+                value = "https://$WorkspaceName-$FHIRServiceName.fhir.azurehealthcareapis.com"
+                enabled = $true
+            },
+            @{
+                key = "accessTokenUrl"
+                value = "https://login.microsoftonline.com/$tenantId/oauth2/v2.0/token"
+                enabled = $true
+            }
+        )
+        timestamp = [DateTime]::UtcNow.ToString("yyyy-MM-ddTHH:mm:ss.fffZ")
+        _postman_variable_scope = "environment"
+        _postman_exported_at = [DateTime]::UtcNow.ToString("yyyy-MM-ddTHH:mm:ss.fffZ")
+        _postman_exported_using = "Postman/10.0.0"
+    }
+
+    # Convert to JSON
+    $json = $environment | ConvertTo-Json -Depth 10
+
+    # Define the output file path
+    $outputFile = "$WorkspaceName-$FHIRServiceName-environment.json"
+
+    # Write the JSON to the file
+    Set-Content -Path $outputFile -Value $json
+
+    Write-Output "Postman environment JSON file has been created: $outputFile"
+}
+catch {
+    # Error handling code - powershell catches the exception messages
+    Write-Host -foregroundcolor Red "An error occurred: $_"
+}