Hi team,

I am to get the authorization_code but getting a CORS error every time. I am using the React application for the API. 

Things I've done earlier in order to fix this issue:

a.) I created a server-based application from the developer console and passed my client_id and secret to get the response and it is working fine in POSTMAN but giving a CORS error in the browser.

b.) I created the Client Based Application from the developer console and passed my client_id and it is giving me the Client ID does not exist error. So now I am not even able to get grant_token.

I don't have any backend. I want to get the response and display it in my browser but cannot proceed further.

Any help would be appreciated.