API Call

ViewController.swift

//
//  ViewController.swift
//  Learning GraphQL
//
//  Created by Chandan on 30/01/22.
//
import UIKit

class ViewController: UIViewController {

    override func viewDidLoad() {
        super.viewDidLoad()
        addMeasurement(clientId: "Client ID", request: request) // the request is the data which wants to update in the server.
    }
}

// MARK: - APIs
extension ViewController {
    func addMeasurement(clientId: String, request: ClientMeasurementRequest) {
        LearningGraphQLAPI.shared.adMeasurement(id: clientId, measurement: request).onSuccess { [weak self] result in
            if let data = result.data {
                // RESULT From backend
            } else if let error = result.errors {
                // GraphQL Error    
            }
        }.onFailure { _ in
            // Technical issue error
        }
    }
}