Response.statusCode returns -1

Bug Report

Description

I’m not sure if this could be considered a bug, but what happens to me is that sometimes when I send a post request then the response statusCode is -1. This value is only returned when the post request is not sent to the destination.

What does this -1 value mean? Because it is not a http response code.

This is my method:

internal fun sendHttpPostRequest(TAG: String, endpoint: String): Promise<Long, Exception> {
        LogManager.info(TAG,"sendHttpPostRequest()")

        var statusCode: Int
        val def = deferred<Long, Exception>()

        try{
            Fuel.post(endpoint).response { request, response, _ ->
                LogManager.info(TAG, "Endpoint msg sent: ${request.url}")
                statusCode = response.statusCode

                if(statusCode == 200) {
                    LogManager.info(TAG, "Response: $statusCode - OK")
                    val data = String(response.data)
                    LogManager.info(TAG, "Response message: $data")
                }else{
                    LogManager.info(TAG, "Something wrong happened sending message. Response: $statusCode")
                }
                def.resolve(statusCode.toLong())
            }
        }catch (exception: Exception){
            LogManager.info(TAG, "Exception thrown! ${exception.stackTrace}")
            def.reject(exception)
        }

        return def.promise
    }

Environment

Development Machine

Complete the following information if applicable

• OS: [Windows 10]
• IDE: [Android Studio]
• Fuel version: [fuel-android:1.15.0]
• Kotlin version: [1.2.61]

Smartphone or Emulator

Complete the following information if applicable

• Device: [Huawei Watch 2]
• OS: [Android 8.0.0 and Wear OS 2.0]

[SleeplessByte]

You can probably actually capture this:

Fuel.post(endpoint)
  .response { request, response, result ->
      val (bytes, error) = result
      if (error != null) {
        // here you have a wrapped error in FuelError that will tell you why the request failed. 
      }
  }

// Alternative way
Fuel.post(endpoint)
  .response { request, response, result ->
    when (result) {
      is Result.Failure -> {
        val ex = result.getException()
      }
      is Result.Success -> {
        val data = result.get()
      }
  }

Check here how you can use our result. Note: you need to manually import this or it will use kotlin’s built in result.

[angelrc96]

Got it @SleeplessByte . So it’s like a default value that is returned when something went wrong sending the request. I was doing some tests and I found out that it’s due to Android Doze mode. Because sometimes network requests are delayed and once the task gets back the CPU, it doesn’t have network connection or something like that