Token based authentication in Sharepoint 2016

Question

Hi I want to obtain Bearer token in Sharepoint 2016 on premise environment for the following code.

GET https://{site_url}/_api/web/lists/GetByTitle('List Title') Authorization: "Bearer " + accessToken Accept: "application/json;odata=verbose"

How do I achieve it using postman.

Answer 1

To access SharePoint 2016 Rest API through Postman, below are the steps:

Step 1 – Get your SharePoint site’s FormDigest using Contextinfo call

1. In Postman, the contextinfo endpoint URL for your SharePoint Site…something like: https://mySharePointSite/_api/contextinfo
2. Authothorization type choose NTLM Authothorization.
3. Set the Accept header: application/json;odata=verbose
4. Choose post method.

With Results: 1.Copy the big string of characters inside FormDigestValue

Step 2 – Make your HTML GET Request (or POST if you’re posting)

1. Enter your endpoint URL…something like: https://mySharePointSite/_api/web/lists/getbytitle(‘MyListName’)/items?$select=Title
2. Set the Accept header: application/json;odata=verbose
3. Add the header X-RequestDigest and paste the FormDigestValue copied above into it