Sharepoint on Premise 2019 Api

Question

Sharepoint on Premise 2019 Api

I am using Sharepoint Local and active directory
how to create an API step by step using Postman
GET, POST , PUT, DELETE
how to create an access token
all information only about Shrepoint Online

Please Help

Best Regards

Answer 1

Hi @ikako ika

1. Please install Postman desktop agent first.
2. Enable Basic Authentification in IIS Settings, then in postman, Authorization --> select Basic Auth type and set your account name and password.
   http://ibtissamchabiba.blogspot.com/2017/03/solution-for-401-unauthorized-error.html
   

The above approach will not work until you are passing credentials or the authentication token in the request. We have another one, Request digest value is used only to prevent the cross-site scripting and not to authenticate the user.

To authenticate the current logged-in user then you have to send one more header to the request to pass the credentials as:

 xhrFields: { withCredentials: true }  

And also you have to enable the URL Rewrite option in the IIS to prevent the preflight option from getting dropped. Please refer this LINK to get it done.
Here is some similar issues with yours to refer
https://sharepoint.stackexchange.com/questions/242272/how-to-perform-post-operations-in-sharepoint-2013-using-rest-api-from-external-a/
https://sharepoint.stackexchange.com/questions/258326/authenticating-to-sharepoint-from-fiddler-postman-fails-with-401

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Answer 2

thanks everyone i solved the problem

BEST REGARDS

Answer 3

Thank your Answer

i make step by step but I have a authorization problem

i attach pdf file 265832-sp.pdf