I am looking for a way to authenticate a user by username/password in a headless manner for Azure AD b2c. Azure AD b2c is great but we feel the redirects for logins can lead
What you are looking for is OWIN's resource owner password credentials in azure AD b2c. You can refer https://feedback.azure.com/forums/169401-azure-active-directory/suggestions/13817784-add-support-for-resource-owner-password-credential and upvote for this feature to be implemented