Method for Limiting Sites Using "Sites.Selected"

Question

Background:

Currently, we are using the Graph API's "Search for sites" function to retrieve a list of SharePoint sites. Detailed documentation can be found here: Search for sites - Microsoft Graph.
In the future, we plan to implement site limitations using "Sites.Selected." However, the documentation for "Search for sites" mentions: "Note: This method does not support Sites.Selected
application permissions." Thus, it is our understanding that site limitations using "Sites.Selected" are not possible with "Search for sites."

Question:

We would like to know the necessary APIs to implement site limitations using "Sites.Selected." Please provide the following information:

• An alternative method for retrieving a list of sites to replace the "Search for sites" (Graph API). Additionally, please explain the authentication method required to use the API. (Should we use the SharePoint REST API instead of the Graph API?)
• The method/steps for applying site limitations. If there are multiple ways to do this, such as via API or web management interface, please describe all methods.

Answer 1

Instead of Graph API, you could use REST API to search sites in the SharePoint online.

First, grant users with add-in only / app-only permissions in the SharePoint online. Then use search REST API to search sites.

Use following endpoint to retrieve a list of sites: https://{your-tenant-name}.sharepoint.com/_api/search/query?querytext='contentclass:STS_Site'&selectproperties='Title,Path'&startrow=0&rowlimit=500.

This endpoint will return a list of up to 500 SharePoint sites, including the site title and URL. If you need to retrieve more than 500 sites, you can use the startrow parameter to retrieve the next set of sites. For example, to retrieve sites 501-1000, set startrow to 500 and rowlimit to 500.

References:

How to grant add-in only / app-only permissions in the SharePoint Online

Search REST API

Other ways to search sites in the SharePoint online.

1.Use UI to search.

https://learn.microsoft.com/en-us/sharepoint/get-started-with-modern-search-experience

https://learn.microsoft.com/en-us/sharepoint/dev/general-development/keyword-query-language-kql-syntax-reference

2.Use PowerShell to search.

https://www.sharepointdiary.com/2018/02/powershell-to-search-sharepoint-export-results-using-keyword-query.html

3.Use Graph API with Delegation permission to search.

Note: Microsoft is providing this information as a convenience to you. The sites are not controlled by Microsoft. Microsoft cannot make any representations regarding the quality, safety, or suitability of any software or information found there. Please make sure that you completely understand the risk before retrieving any suggestions from the above link.

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