Run requestAccessToken function either by importing it from this utility or using the window.requestAccessToken in your browser console passing your clientId you obtained from imgur to it.
It will redirect user to the imgur and authenticate them.
window.requestAccessToken(myClientId);
Upon finishing authentication, imgur will redirect users back to your application. please make sure you have correct redirectUrl set in the imgur configs. Go to this link: (https://imgur.com/account/settings/apps)[https://imgur.com/account/settings/apps] and click on edit beneath the redirect column. set your redirect url to something like: http://localhost:3000/oauth-callback
import OAuthCallback from this package and mount it on the endpoint you've set in the previous step. The following snippet is for the url in previous step: