Sharepoint Rest Api calls`

Question

I am making a simple website where I have to save some of my data to sharepoint list. I am using only html css js only. I need to make REST calls to Sharepoint APIs to post data on SP. I am trying to get data from my list(in SP) as follow:

$(document).ready(function() {
        processListItems(hostweburl, 'ListName');
    });

function processListItems(url, listname) {

        $.ajax({
            url: url + "/_api/web/lists/getbytitle('" + listname + "')",
            method: "GET",
            headers: {
                "Accept": "application/json; odata=verbose"
            },
            success: function(data) {
                console.log(data);      
            },
            error: function(data) {
                console.log(data);
            }
        });
    }

It returns this response:

"{"error":{"code":"-2147024891, System.UnauthorizedAccessException","message":{"lang":"en-US","value":"Access denied. You do not have permission to perform this action or access this resource."}}}"

I am referencing only two scripts:

 <script src="js/jquery-3.1.1.js"></script>
<script src="//ajax.aspnetcdn.com/ajax/4.0/1/MicrosoftAjax.js" type="text/javascript"></script>

It says I am unauthorised to access. Although I am having admin rights to my list. Please tell me how to fix this issue. Do I need any authorization header for ajax call to Rest Api? I am new to Sharepoint. Please Help!

Is it on premise or SharePoint Online? Maybe this can help you https://social.technet.microsoft.com/Forums/office/en-US/e9924aef-28df-43a4-8d79-a9d1532699c6/systemunauthorizedaccessexception-when-accessing-sharepoint-2013-rest-api?forum=sharepointsearch. Also this: http://sharepoint.stackexchange.com/questions/187926/system-unauthorizedaccessexception-when-accessing-the-sharepoint-2013-rest-api — R.Czq, Oct 18 '16 at 09:42
It seems to be a permission problem, make sure that you have read/full control rights on the web as well, not only on the list. — R.Czq, Oct 18 '16 at 09:59
What you mean by "creating this using js html only" where your JS code running... ? Are you hosting code in SharePoint itself? — vinayak hegde, Oct 18 '16 at 12:35

score 0 · Answer 1 · edited May 23 '17 at 12:00

0

I think that custom scripting is disabled by default in SPOnline. You may have to enable it. These links may help:

Access denied office 365 / SharePoint online with Global Admin account

http://vamsi-sharepointhandbook.blogspot.com/2015/07/turn-scripting-capabilities-on-or-off.html

edited May 23 '17 at 12:00

Community

1
1

answered Oct 18 '16 at 15:45

RichG82

21
2

DO I need any access token for it. – Sonali Oct 19 '16 at 09:53
for Restful api calls – Sonali Oct 19 '16 at 09:53
Can I pass username and password as a part of ajax call. – Sonali Oct 19 '16 at 10:57

score 0 · Answer 2 · edited Mar 28 '18 at 11:38

0

When you are trying to pull items from a list, specify the URL up to items. See below line for syntax -

$.ajax({
url: _spPageContextInfo.webAbsoluteUrl + "/_api/web/lists/getByTitle('"+listName+"')/items",
// Rest of the code
});

edited Mar 28 '18 at 11:38

nitinr708

1,393
2
19
29

answered Mar 28 '18 at 11:06

Pranav Ghosh

1

score 0 · Answer 3 · answered Nov 27 '18 at 12:41

Yes you would need a authorization header for your requests. So your headers should be like this:

headers: {
             "Accept": "application/json; odata=verbose",
             "Authorization": 'Bearer '+ **access_token**   
         }

access_token: You would need to acquire access token to make requests. You can use adal library provided by Microsoft for that.

Sharepoint Rest Api calls`

3 Answers3