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iOS

Posted by Rickey Paape
Rickey Paape
24,122 Points

TIC Read Status Error After Refactor with Codable

I receive the following error: 2019-08-02 11:48:19.149541-0500 Stormy[5253:1207279] [BoringSSL] nw_protocol_boringssl_get_output_frames(1301) [C1.1:2][0x7fd801500b20] get output frames failed, state 8196 2019-08-02 11:48:19.149680-0500 Stormy[5253:1207279] [BoringSSL] nw_protocol_boringssl_get_output_frames(1301) [C1.1:2][0x7fd801500b20] get output frames failed, state 8196 2019-08-02 11:48:19.150243-0500 Stormy[5253:1207279] TIC Read Status [1:0x0]: 1:57 2019-08-02 11:48:19.150323-0500 Stormy[5253:1207279] TIC Read Status [1:0x0]: 1:57

Here is my DarkSkyAPIClient: '''Swift // // DarkSpyAPIClient.swift // Stormy // import Foundation

class DarkSkyAPIClient { fileprivate let darkSkyApiKey = "key"

lazy var baseUrl : URL = {
    return  URL(string: "https://api.darksky.net/forecast/\(darkSkyApiKey)/")!
}()
let decoder = JSONDecoder()
let session: URLSession

init(configuration: URLSessionConfiguration) {
    self.session = URLSession(configuration: configuration)
}

convenience init() {
    self.init(configuration: .default)
}

typealias WeatherCompletionHandler = (Weather?, Error?) -> Void
typealias CurrentWeatherCompletionHandler = (CurrentWeather?, Error?) -> Void

private func getWeather(at coordinate: Coordinate, completionHandler completion: @escaping WeatherCompletionHandler) {

    guard let url = URL(string: coordinate.description, relativeTo: baseUrl) else {
        completion(nil, DarkSkyError.invalidURL)
        return
    }

    let request = URLRequest(url: url)

    let task = session.dataTask(with: request) {data, response, error in
        DispatchQueue.main.async {
            if let data = data {
                guard let httpResponse = response as? HTTPURLResponse else {
                    completion(nil, DarkSkyError.requestFailed)
                    return
                }
                if httpResponse.statusCode == 200 {
                    do {
                        let weather = try self.decoder.decode(Weather.self, from: data)
                        completion(weather, nil)
                    } catch let error {
                        completion(nil, error)
                    }
                } else {
                    completion(nil, DarkSkyError.invalidData)
                }
            } else if let error = error {
                completion(nil, error)
            }
        }
    }

    task.resume()
}

func getCurrentWeather(at coordinate: Coordinate, completionHandler completion: @escaping CurrentWeatherCompletionHandler) {
    getWeather(at: coordinate) { weather, error in
        completion(weather?.currently, error)
    }
}

}

1 Answer

Daniel Turato
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Daniel Turato
Java Web Development Techdegree Graduate 30,124 Points
Daniel Turato
.a{fill-rule:evenodd;}techdegree seal-36
Daniel Turato
Java Web Development Techdegree Graduate 30,124 Points

You're getting this error as you're trying to edit the UI via a background thread. So you need to transfer onto the main thread after the networking in session is complete. So like this:

DispatchQueue.main.async {
                if let data = data {

                    guard let httpResponse = response as? HTTPURLResponse else {
                        completion(nil, DarkSkyError.requestFailed)
                        return
                    }

                    if httpResponse.statusCode == 200 {
                        do {
                            let weather = try self.decoder.decode(Weather.self, from: data)
                            completion(weather, nil)
                        } catch let error {
                            completion(nil, error)
                        }
                    } else {
                        completion(nil, DarkSkyError.invalidData)
                    }

                } else if let error = error {
                    completion(nil, error)
                }
            }
Rickey Paape
Rickey Paape
24,122 Points

I have updated the code to include the DispatchQueue.main.async, however, I am still receiving the same error and the weather information is not updating.