i'm trying to integrate growthbook sdk for android and the result i want to it to be stored in result table, now my frontend doesn't have access to database so i cannot directly use callback to store the result in table. So is there some other way i could store it or would i need to create a POST API for this updation in backend?

store which variant was served to the user?

yeah through callbacks i've already implemented in backend, but in the frontend i do not have db access permission so i guess for storing that info in db i would require writing a dedicated api for storing callback right in my backend service?