Share SharePoint document programmatically

Introduction:

Sometimes it is required to share the certain documents with outside users. It is possible that user can share that document as hard copy. If that document is hosted on SharePoint user can make a shareable link.

Description:

Sharing a document to the outside users are possible via directly going to SharePoint and creating a shareable link. But what if you want to generate a shareable link using the C# code.

You can follow below code to generate shareable link in Online SharePoint.

1. Get the link
You need to pass the document link to below function as shown.

currentLink = https://organization.sharepoint.com/cf_car/JTN_89330b3c-beb5-e811-a968-000d3a324f4c/Untitled2.png

2. Get the base url of your SharePoint and generate the service context

using (var context = new ClientContext(Model.SharePointBaseURL)){}

3. Authenticate the user

foreach (var c in Model.AdminPassword) passWord.AppendChar(c);
context.Credentials = new SharePointOnlineCredentials(Model.AdminUserName, passWord);

4. CreateAnonymousLink method which will generate the shareable link

var orgEditLink = Web.CreateAnonymousLink(context, currentLink, true);

5. Execute the query

context.ExecuteQuery();

6. Finally get the public link

editUrl = orgEditLink.Value;

Complete code:

        private static string UpdateLinkTOShareable(string currentLink, Entity document)
        {
            string editUrl = string.Empty;

            using (var context = new ClientContext(Model.SharePointBaseURL))
            {
                var passWord = new SecureString();
                foreach (var c in Model.AdminPassword) passWord.AppendChar(c);
                context.Credentials = new SharePointOnlineCredentials(Model.AdminUserName, passWord);
                try
                {
                    var orgEditLink = Web.CreateAnonymousLink(context, currentLink, true);
                    context.ExecuteQuery();
                    editUrl = orgEditLink.Value;

                }
                catch (Exception ex)
                {

                }
                /*Code to make link Public End*/


                return editUrl;
            }
        }