Okay so im fairly new to software development (8 months)- no experience with API's. I have been tasked to implement authorize.net for our websites. I don't know what to do- I have read the the api reference documentation and sdk stuff on github. I don't know how I can implement any of it, just trying to use the chargecreditcard request but I cant figure out how to pass the login and transaction key, then implement the chargecreditcard request/method. I'm trying to implement this using c# but so confused on what I should. I ideally would like to use the API but don't know how... I did read and watch videos on how API's are meant to be implemented, those made sense but the documentation here doesn't make sense to me.