My two code samples

scripts/aad-get-tenantid/README.md

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+---
+plugin: add-to-gallery-preparation
+---
+
+# AAD-Get-TenantID
+
+## Summary
+
+These are 2 practical scripts I have to get Tenant ID from either a domain name or from a Subscriptionis ID.
+
+These are simple, but very useful to be combined in other scripts.
+
+
+# [PnP PowerShell](#tab/pnpps)
+
+```powershell
+
+
+function Get-TenantIdFromDomain {
+    <#
+    .SYNOPSIS
+        Get the tenant ID for any Domain.
+
+    .DESCRIPTION
+        Will check and return the tenant ID for any domin, or return  $false if no ID is found.
+
+    .PARAMETER domain
+        Any domain name, ex. domain.com
+
+    .INPUTS
+        domain name: domain.com
+
+    .OUTPUTS
+        String or boolean False.
+
+    .EXAMPLE
+        Get-TenantIdFromDomain domain.com
+        Get-TenantIdFromDomain -domain domain.com
+        "domain.com" | Get-TenantIdFromDomain
+
+    .NOTES
+        FileName:   Get-TenantIdFromDomain.psm1
+        Author:     Daniel Kåven
+        Contact:    @dkaaven
+        Created:    2022-03-25
+        Updated:    2024-10-13
+        Version History:
+        1.0.0 - (2022-03-25) Script created
+        1.1.0 - (2024-06-20) Added check for missing domain
+        1.2.0 - (2024-08-13) Added ability to get data from Pipeline
+
+    #>
+
+    param(
+        [CmdletBinding()]
+        [parameter(
+            Mandatory = $true,
+            Position = 0,
+            HelpMessage = "The domain name of the target tenant.",
+            ValueFromPipeline = $true,
+            ValueFromPipelineByPropertyName = $true
+        )]
+        [String]$domain
+    )
+
+    # Check if tenant exists
+    try {
+        $request = Invoke-WebRequest -Uri https://login.windows.net/$domain/.well-known/openid-configuration
+    }
+    catch {
+        if ($null -eq $request) {
+            return $false
+        } else {
+            Write-Error $_
+        }
+    }
+
+    # Return tenant ID
+    $data = ConvertFrom-Json $request.Content
+    $result = $data.token_endpoint.split('/')[3]
+    return $result
+}
+
+```
+[!INCLUDE [More about PnP PowerShell](../../docfx/includes/MORE-PNPPS.md)]
+
+
+# [PnP PowerShell](#tab/pnpps)
+
+```powershell
+
+function Get-TenantIdFromSubscriptionId {
+    <#
+    .SYNOPSIS
+        Get the tenant ID from an Azure Subscription ID.
+    .DESCRIPTION
+        Will check and return the tenant ID for an Azure Subscription ID or return $false if no ID is found.
+        Inspired from [Jos Lieben @ lieben.nu](https://www.lieben.nu/liebensraum/2020/08/get-tenant-id-using-azure-subscription-id/)
+
+    .PARAMETER subscriptionId
+        The Azure Subscription ID to check.
+
+    .INPUTS
+        Azure Subscription Id: xxxxxxxx-xxxx-xxxx-xxxx-xxxxxxxxxxxx
+
+    .OUTPUTS
+        String or boolean False.
+
+    .EXAMPLE
+        Get-TenantIdFromSubscriptionId xxxxxxxx-xxxx-xxxx-xxxx-xxxxxxxxxxxx
+        Get-TenantIdFromSubscriptionId -subscriptionId xxxxxxxx-xxxx-xxxx-xxxx-xxxxxxxxxxxx
+        xxxxxxxx-xxxx-xxxx-xxxx-xxxxxxxxxxxx | Get-TenantIdFromSubscriptionId
+
+    .NOTES
+        FileName:    Get-TenantIdFromSubscriptionId.psm1
+        Author:      Daniel Kåven
+        Contact:     @DKaaven
+        Created:     2024-08-06
+        Updated:     2024-08-06
+        Version history:
+        1.0.0 - (2024-08-06) Script created
+    #>
+    param (
+        [CmdletBinding()]
+        [Parameter(
+            Mandatory = $true,
+            Position = 0,
+            HelpMessage = "The Azure Subscription ID",
+            ValueFromPipeline = $true,
+            ValueFromPipelineByPropertyName = $true
+        )]
+        [Alias("subId")]
+        [String]$subscriptionId
+    )
+    # Check Subscription ID format
+    $guidPattern = "^[a-fA-F0-9]{8}-[a-fA-F0-9]{4}-[a-fA-F0-9]{4}-[a-fA-F0-9]{4}-[a-fA-F0-9]{12}$"
+    if ($subscriptionId -notmatch $guidPattern) {
+        Write-Error "$subscriptionId is not a valid Azure Subscription ID."
+        return $false
+    }
+    $response = try {(Invoke-WebRequest -UseBasicParsing -Uri "https://management.azure.com/subscriptions/$($subscriptionId)?api-version=2015-01-01" -ErrorAction Stop).BaseResponse} catch { $_.Exception.Response } 
+    $stringHeader = $response.Headers.ToString()
+    $tenantId = $stringHeader.SubString($stringHeader.IndexOf("login.windows.net")+18,36)
+
+    # Check if it exist or return false
+    if ($tenantId -match $guidPattern) {
+        return $tenantId
+    }
+    else {
+        return $false
+    }
+
+}
+
+```
+[!INCLUDE [More about PnP PowerShell](../../docfx/includes/MORE-PNPPS.md)]
+
+
+## Source Credit
+
+Sample first appeared on [https://github.com/dkaaven/M365-Scripts](https://github.com/dkaaven/M365-Scripts)
+
+## Contributors
+
+| Author(s) |
+|-----------|
+| [Daniel Kåven](https://github.com/dkaaven)|
+
+
+[!INCLUDE [DISCLAIMER](../../docfx/includes/DISCLAIMER.md)]
+<img src="https://m365-visitor-stats.azurewebsites.net/script-samples/scripts/template-script-submission" aria-hidden="true" />

scripts/aad-get-tenantid/assets/template.sample.json

@@ -0,0 +1,135 @@
+[
+  {
+    "name": "<foldername>",
+    "source": "pnp",
+    "title": "<title>",
+    "shortDescription": "",
+    "url": "https://pnp.github.io/script-samples/<foldername>/README.html",
+    "longDescription": [
+      ""
+    ],
+    "creationDateTime": "2023-01-20",
+    "updateDateTime": "2023-01-20",
+    "products": [
+      "SharePoint",
+      "Office",
+      "Graph",
+      "PowerApps",
+      "Teams",
+      "Power Automate",
+      "Microsoft Todo",
+      "Azure",
+      "Microsoft 365 Copilot"
+    ],
+    "metadata": [
+      {
+        "key": "PNP-POWERSHELL",
+        "value": "1.11.0"
+      },
+      {
+        "key": "CLI-FOR-MICROSOFT365",
+        "value": "5.6.0"
+      },
+      {
+        "key": "GRAPH-POWERSHELL",
+        "value": "1.0.0"
+      },
+      {
+        "key": "SPO-MANAGEMENT-SHELL",
+        "value": "16.0.21116.12000"
+      },
+      {
+        "key": "AZURE-CLI",
+        "value": "2.27.0"
+      },
+      {
+        "key": "MICROSOFTTEAMS-POWERSHELL",
+        "value": "3.0.0"
+      },
+      {
+        "key": "POWERAPPS-POWERSHELL",
+        "value": "2.0.0"
+      },
+      {
+        "key": "POWERSHELL",
+        "value": "7.2.0"
+      },
+      {
+        "key": "MICROSOFTWHITEBOARDADMIN",
+        "value": "1.5.0"
+      }
+    ],
+    "categories": [
+      "Modernize",
+      "Data",
+      "Deploy",
+      "Provision",
+      "Configure",
+      "Report",
+      "Security",
+      "AI",
+      "Microsoft 365 Copilot"
+    ],
+    "tags": [
+      "<Cmdlets-Used>"
+    ],
+    "thumbnails": [
+      {
+        "type": "image",
+        "order": 100,
+        "url": "https://raw.githubusercontent.com/pnp/script-samples/main/scripts/<foldername>/assets/preview.png",
+        "alt": "Preview of the sample <title>"
+      }
+    ],
+    "authors": [
+      {
+        "gitHubAccount": "<your-github-username>",
+        "company": "",
+        "pictureUrl": "https://github.com/<github-username>.png",
+        "name": "<Full Name>"
+      }
+    ],
+    "references": [
+      {
+        "name": "Want to learn more about PnP PowerShell and the cmdlets",
+        "description": "Check out the PnP PowerShell site to get started and for the reference to the cmdlets.",
+        "url": "https://aka.ms/pnp/powershell"
+      },
+      {
+        "name": "Want to learn more about CLI for Microsoft 365 and the commands",
+        "description": "Check out the CLI for Microsoft 365 site to get started and for the reference to the commands.",
+        "url": "https://aka.ms/cli-m365"
+      },
+      {
+        "name": "Want to learn more about Microsoft Graph PowerShell SDK and the cmdlets",
+        "description": "Check out the Microsoft Graph PowerShell SDK documentation site to get started and for the reference to the cmdlets.",
+        "url": "https://learn.microsoft.com/graph/powershell/get-started"
+      },
+      {
+        "name": "Want to learn more about Power Apps PowerShell and the cmdlets",
+        "description": "Check out the Power Apps PowerShell documentation site to get started and for the reference to the cmdlets.",
+        "url": "https://learn.microsoft.com/power-platform/admin/powerapps-powershell"
+      },
+      {
+        "name": "Introduction to the SharePoint Online Management Shell",
+        "description": "Check out the SPO Management Shell documentation site to get started and for the reference to the cmdlets.",
+        "url": "https://learn.microsoft.com/powershell/sharepoint/sharepoint-online/introduction-sharepoint-online-management-shell"
+      },
+      {
+        "name": "Want to learn more about Microsoft Teams PowerShell and the cmdlets",
+        "description": "Check out the Microsoft Teams PowerShell documentation site to get started and for the reference to the cmdlets.",
+        "url": "https://learn.microsoft.com/microsoftteams/teams-powershell-overview"
+      },
+      {
+        "name": "Want to learn more about Azure CLI and the commands",
+        "description": "Check out the Azure CLI documentation site to get started and for the reference to the commands.",
+        "url": "https://learn.microsoft.com/cli/azure/"
+      },
+      {
+        "name":"Want to learn more about Whiteboard Admin cmdlets",
+        "description":"Check out the Whiteboard Admin cmdlets documentation site to get started and for the reference to the commands.",
+        "url": "https://learn.microsoft.com/powershell/module/whiteboard"
+      }
+    ]
+  }
+]

scripts/aad-get-tenantid/modules/Get-TenantIdFromDomain.ps1

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+
+function Get-TenantIdFromDomain {
+    <#
+    .SYNOPSIS
+        Get the tenant ID for any Domain.
+
+    .DESCRIPTION
+        Will check and return the tenant ID for any domin, or return  $false if no ID is found.
+
+    .PARAMETER domain
+        Any domain name, ex. domain.com
+
+    .INPUTS
+        domain name: domain.com
+
+    .OUTPUTS
+        String or boolean False.
+
+    .EXAMPLE
+        Get-TenantIdFromDomain domain.com
+        Get-TenantIdFromDomain -domain domain.com
+        "domain.com" | Get-TenantIdFromDomain
+
+    .NOTES
+        FileName:   Get-TenantIdFromDomain.psm1
+        Author:     Daniel Kåven
+        Contact:    @dkaaven
+        Created:    2022-03-25
+        Updated:    2024-10-13
+        Version History:
+        1.0.0 - (2022-03-25) Script created
+        1.1.0 - (2024-06-20) Added check for missing domain
+        1.2.0 - (2024-08-13) Added ability to get data from Pipeline
+
+    #>
+
+    param(
+        [CmdletBinding()]
+        [parameter(
+            Mandatory = $true,
+            Position = 0,
+            HelpMessage = "The domain name of the target tenant.",
+            ValueFromPipeline = $true,
+            ValueFromPipelineByPropertyName = $true
+        )]
+        [String]$domain
+    )
+
+    # Check if tenant exists
+    try {
+        $request = Invoke-WebRequest -Uri https://login.windows.net/$domain/.well-known/openid-configuration
+    }
+    catch {
+        if ($null -eq $request) {
+            return $false
+        } else {
+            Write-Error $_
+        }
+    }
+
+    # Return tenant ID
+    $data = ConvertFrom-Json $request.Content
+    $result = $data.token_endpoint.split('/')[3]
+    return $result
+}