I’m trying to get all my users data and store it on an array but its my first time using FireBase or json on unity and i cant seem to find a way how
You can use the sdk of Firebase if you need a reactive system, otherwise you can try this REST Client plugin to create HTTP requests, retry, debug and handle issues in a better way using Promises instead of Coroutines directly => GitHub - proyecto26/RestClient: 🦄 A Promise based REST and HTTP client for Unity 🎮
Regards, Juan