Get all website URLs from SharePoint site using CSOM (PnP Core Component)

WebExtensions.GetAllWebUrls (PnP Core Component) – This extension method returns the collections of the URLs of all web sites that are contained within the site collection including the top-level site and its sub sites.

Supports: SharePoint 2013+, SharePoint Online

Assembly: OfficeDevPnP.Core.dll
Namespace: Microsoft.SharePoint.Client

Method:

IEnumerable<string> GetAllWebUrls()

Syntax:
Single Line Code: Site.GetAllWebUrls()

Code Snippet:

The following example returns the collection of all web sites from the Site Collection including top level site and its subsite.

[code lang=”csharp”]
using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
using Microsoft.SharePoint.Client;
using OfficeDevPnP.Core;

// Assembly Reference Used: OfficeDevPnP.Core, Version=2.4.1605.0, Culture=neutral, PublicKeyToken=3751622786b357c2
namespace SampleApplication
{
class Program
{
static void Main(string[] args)
{
string siteUrl = "https://sharepointonline.sharepoint.com";

AuthenticationManager authManager = new AuthenticationManager();
//Interactive Login to SharePoint site – Opens a Online signin page to authenticate the user
var context = authManager.GetWebLoginClientContext(siteUrl);

IEnumerable<string> webUrls = context.Site.GetAllWebUrls();
string weburl = "";
foreach (var url in webUrls)
{
weburl += url + "\r\n";
}
Console.WriteLine(weburl);

Console.WriteLine("Press any key to exit.");
Console.ReadKey();
}
}
}

[/code]
The above code also available from GitHub.