SharePoint Get all sites and all sub sites using SharePoint online REST API

Question

For SharePoint Online connector We used following steps to fetch all sites:

Step 1: Created Add-in on SharePoint instance with following permission xml

<AppPermissionRequests>
        <AppPermissionRequest Scope="http://sharepoint/content/tenant" Right="FullControl"/>
        <AppPermissionRequest Scope="http://sharepoint/content/sitecollection" Right="Read"/>
</AppPermissionRequests>

Step 2: Used below API to get all sites and subsites

https://<site_name>.sharepoint.com/_api/search/query?querytext='contentclass:STS_Site' &rowlimit=100

Issue we are facing –

1. Above endpoint is returning all sites, sub sites along with user’s personal site(One drive), while we need all sites and sub sites only.
2. Please suggest minimal required permission to read all site, all subsite, all folders and files metadata

We referred following links:

• http://www.ktskumar.com/2017/01/access-sharepoint-online-using-postman/
• https://docs.microsoft.com/en-us/sharepoint/dev/sp-add-ins/add-in-permissions-in-sharepoint
• https://docs.microsoft.com/en-us/sharepoint/dev/sp-add-ins/get-to-know-the-sharepoint-rest-service

Answer 1

A way from Joel Dsouza for your reference.

1.The First Ajax is to get the Root Site Title and the Relative URL.

$.ajax({
    url: _spPageContextInfo.siteAbsoluteUrl + "/_api/site/rootweb?$select=Title,ServerRelativeUrl",
    method: "GET",
    headers: {
        "Accept": "application/json; odata=verbose"
    },
    success: function(rootsite) {

    },
    error: function(rootsite) {},
    async: false
});

2.The Second AJAX is to get all the sub sites under the Root Site.

$.ajax({
    url: _spPageContextInfo.siteAbsoluteUrl + "/_api/web/webinfos?$select=ServerRelativeUrl,Title",
    method: "GET",
    headers: {
        "Accept": "application/json; odata=verbose"
    },
    success: function(subsites) {
        $.each(subsites.d.results, function() {
            getSubSites(this.ServerRelativeUrl, this.Title);
        });

    },
    error: function(subsites) {},
    async: false
});

3.This is a Recursive Function to loop through the sub sites and check for more sub sites.

function getSubSites(SubSiteUrl, SubSiteTitle) {
    console.log(SubSiteUrl);
    $.ajax({
        url: _spPageContextInfo.siteAbsoluteUrl + SubSiteUrl + "/_api/web/webinfos?$select=ServerRelativeUrl,Title",
        method: "GET",
        headers: {
            "Accept": "application/json; odata=verbose"
        },
        success: function(subsites) {

            $.each(subsites.d.results, function(index) {
                getSubSites(this.ServerRelativeUrl, this.Title);
            });
        },
        error: function(subsites) {},
        async: false
    });
}

More information: Get All Sites and Sub Sites using REST API