ktskumar

function getRequest(url) {
    var request = new XMLHttpRequest();
    return new Promise(function(resolve, reject) {
        request.onreadystatechange = function() {
            if (request.readyState !== 4) return;
            if (request.status >= 200 && request.status < 300) {
                resolve(request);
            } else {
                reject({
                    status: request.status,

ktskumar

//Copy and get the getRequest method from url - https://gist.github.com/ktskumar/a9e9df497673e9fd26ead8532b9ff425
getRequest("https://domain.sharepoint.com/sites/name/_api/web?$expand=author").then(function(response) {
    var result = JSON.parse(response.responseText);
    console.log(result);
    alert("Site Auhtor: " + result.Author.Title);
});

ktskumar

//Useful code when we writing the SharePoint Framework Extensions

var modernPage = false;
try{
if(window._isSPSitePage)
    modernPage = true;
}catch(e){}
console.log("This is modern site page: "+ modernPage);

ktskumar

//https://gist.github.com/ktskumar/a9e9df497673e9fd26ead8532b9ff425
//getRequest method reference
function getRequest(url) {
    var request = new XMLHttpRequest();
    return new Promise(function(resolve, reject) {
        request.onreadystatechange = function() {
            if (request.readyState !== 4) return;
            if (request.status >= 200 && request.status < 300) {
                resolve(request);

ktskumar

//getRequest method reference
//https://gist.github.com/ktskumar/a9e9df497673e9fd26ead8532b9ff425
function getRequest(url) {
    var request = new XMLHttpRequest();
    return new Promise(function(resolve, reject) {
        request.onreadystatechange = function() {
            if (request.readyState !== 4) return;
            if (request.status >= 200 && request.status < 300) {
                resolve(request);
            } else {

ktskumar

//Check whether the current user has permission to create promoted site page
getRequest("https://domain.sharepoint.com/sites/name/_api/sitepages/cancreatepromotedpage").then(function(output) {
    var cancreatepage = JSON.parse(output.response);    
    if (cancreatepage) {
        window.location.href = "https://domain.sharepoint.com/sites/name/_layouts/15/CreateSitePage.aspx?promotedState=1";
    } else {
        alert("You didn't have permission to create promotes news post site page");
    }
});

ktskumar

//Modify domain.sharepoint.com with your SharePoint site URL
getRequest("https://domain.sharepoint.com/_api/GroupSiteManager/CanUserCreateGroup").then(function(output) {
    var result = JSON.parse(output.response);
    if (result.value){
      alert("The current User can create Office 365 Group!");
    }else{
      alert("The current User do not have permission to create Office365 Group!");
    }    
});

ktskumar

//Check whether the current user follows the SharePoint site https://contoso.sharepoint.com/sites/demo
function isFollow(url) {
    getRequest(location.origin + "/_vti_bin/homeapi.ashx/sites/followed/isFollowed?url=" + url).then(function(output) {
        console.log(output.response);
    });
}

isFollow("https://contoso.sharepoint.com/sites/demo");

//getRequest method reference

ktskumar

getRequest('https://contoso.sharepoint.com/sites/sitename/_api/web/FooterEnabled').then(function(output) {
    var result = JSON.parse(output.response);
    console.log(result.value);
});

//Author: Shantha Kumar T
//Web: https://www.ktskumar.com

//getRequest method reference
//https://gist.github.com/ktskumar/a9e9df497673e9fd26ead8532b9ff425

ktskumar

//getRequest method reference  
//https://gist.github.com/ktskumar/a9e9df497673e9fd26ead8532b9ff425  

//Modify domain.sharepoint.com with your SharePoint site URL
getRequest("https://domain.sharepoint.com/_api/web?$select=MembersCanShare").then(function(output) {  
    var result = JSON.parse(output.response);
    if (result.MembersCanShare){  
      alert("Members can share this site and its folder & files");  
    }else{  
      alert("Members do not have permission to share this site!");