How to receive body of error message with retrofit and kotlin?-CodePudding

I am trying to get the error of the body. I have a code, but it fails in try block and goes directly to catch block. So i receive http 400 error, but i need to receive a more specific error from the server. How can i improve my code to get it?

 try { 
    api.uploadImage(imgId, requestBody).enqueue(object : Callback<Void> {
    override fun onResponse(call: Call<Void>, response: Response<Void>) {
        if (!response.isSuccessful()) {
            val errorBody = response.errorBody()?.string()
           
        }
    }

    override fun onFailure(call: Call<Void>, t: Throwable) {
        Log.i("tag", "uploadImage: ${t.message}")
    }
})} catch (e: Exception) {
     Log.i("tag", "uploadImage: ${e.message}")
}

CodePudding user response：

You should debug your catch block to identify error type, then you can catch it and get message from specific error class

CodePudding user response：

Maybe like this:

object ErrorUtils {

fun parseError(response: Response<*>): APIError {
    val converter = ServiceGenerator.retrofit()
            .responseBodyConverter(APIError::class.java, arrayOfNulls<Annotation>(0))

    val error: APIError

    try {
        error = converter.convert(response.errorBody())
    } catch (e: IOException) {
        return APIError()
    }

    return error
}

}

Then could use it like

        APIError error = ErrorUtils.parseError(response);
        Log.d("error message", error.message());