Getting 401 Unauthorized error in sharepoint onpremise 2016

Question

We have SharePoint 2016 on-premise site
We successfully created one sp app using the SharePoint site
We are calling this request to get the code (so we can use the code for an access token)

https://sharepoint.tenant.com:/sites/live/_layouts/15/OAuthAuthorize.aspx?client_id=client-id&scope=Web.Manage&response_type=code&redirect_uri=https://sharepoint.tenant.com:**/sites/live**

we tried some solutions and finding more
If you have any idea about this error then us a solution.
If there is any other documentation for SharePoint on-premise 2016 then give us the link of that documentation.

Error
error=server_error&error_description=The%20remote%20server%20returned%20an%20error%3A%20%28401%29%20Unauthorized%2E

Answer 1

Hi @Purvesh Tejani,

You can use following URL to get context token.

• client_id: The client ID of your SharePoint Add-in.
• redirect_uri: The URI to which you want the browser redirected after the new context token is obtained. SharePoint will POST the context token to this URI. Typically, this is the same page, controller method, or web service method that requested the new context token. The value must be URL-encoded.

https://<SharePointDomain> /_layouts/15/appredirect.aspx?client_id=<app_client_GUID> &amp;redirect_uri=<URL-encoded_redirect_URI>

Here is the document for details

https://learn.microsoft.com/en-us/sharepoint/dev/sp-add-ins/handle-security-tokens-in-provider-hosted-low-trust-sharepoint-add-ins

---

If the answer is helpful, please click "Accept Answer" and kindly upvote it. If you have extra questions about this answer, please click "Comment".

Note: Please follow the steps in our documentation to enable e-mail notifications if you want to receive the related email notification for this thread.