I have an existing REST API Project that uses BASIC Authorization where username and Password are passed via Querystring. This API is being consumed by "n" number of clients. Now there is a request from one new client that they want 0Auth 2.0 authorization and cannot use Basic auth.
Since I am new to oauth and do not have much time to do R&D as its a quick requirement from client, i did a basic study and understand that for oAuth first client has call a method and we have to pass access token and then client can use this access token to authorize. My question here is can some one share a sample simple OAuth authorization code where client will pass username and password and then I can generate access token and share it with client. Appreciate any support here as its an emergency requirement.