Create Search Form Client Side From a Custom Field WHMCS

Hello, I'm seeking for my clients to be able to perform a search query of the game username field (which is a custom client field) and it will search the db of clients and match if it is found.) The page will only be searchable by logged in users for the record. it will display based on the search it must only display the one client based on the search users not found aka not existing or spelt wrong must display appropriate error and no other view able information client side as this is on the client side and not admin side. - Game Username (custom client field - used for search) - Current Rank Points (custom client field) - Current Pay Points (client credit balance) - Recruiter Game Username (custom client field) - Recruit Quiz Completion (custom client field blank if value in custom field is 1 then it is complete)