SOLID - S

Swift_solid_old_way.swift

class Handler {
    func handle() {
        let data = requestDataToAPI()
        let array = parse(data: data)
        saveToDB(array:array)
    }
    
    private func requestDataToAPI() -> Data {
        //send API request and wait the response
    }
    
    private func parse(data: Data) -> [String] {
        //parse data and create the array
    }
    
    private func saveToDB(array: [String]) {
        //save the array in a database (CoreData, Realm)
    }
}