I’ve read through a number of other posts and replies but still can’t figure out what I’m missing.

I have

struct Station: Codable {     
  let code: String
  let data: PlantData 
} 

struct PlantData: Codable {
  let batteryPercent: Int 
  let capacity: Float  
  let dayEnergy: Float 
}

…

func getSCPosts (completion: @escaping (PlantData) -> ()) {
 

Which builds the request and then performs the call with

    let task = URLSession.shared.dataTask(with: request) { data, response, error in
        // Handle the response data, error, etc.
        if let error = error {
            print("Error: (error)")
            return
        }
        
        guard let data = data else {
            print("No data received")
            return
        }

        // Parse the response data
        do {
            let json = try JSONDecoder().decode(Station.self, from: data)
            DispatchQueue.main.async {completion(json.data)}
            
            print(json.data)
        
        } catch {
            print("Error parsing JSON: (error)")
        }
    }
    
    task.resume()

If I commentent out the DispatchQueue.main.async line, the print above shows the format of the data in the console as:

PlantData(batteryPercent: 96, capacity: 5.18, dayEnergy: 0.6)

For the view, which I think is where the issue is, I have

struct SolisCloud: View {
    
    @State var solisResults: PlantData?
    
    var body: some View {
        VStack {

            Text("My Solis Energy")

            .onAppear{
               getSCPosts(completion: { (solisResults) in self.solisResults = solisResults })
            }
        
        }
    }
}

When I print solisResults in the console I just get ‘nil’.

Following a number of posts I’ve found, and various examples from others, I have tried to work out the correct way to pass the data through but for some reason I can’t get my head around it.

I think the issue is with the way I am passing the data received back from the API through to the screen, either in how I am defining solisResults?

I’m probably missing something obvious but any help would be greatly appreciated.