public static void Run([QueueTrigger("beerqueue", Connection = "AzureWebJobsStorage")] string myQueueItem, TraceWriter log)
{
log.Info($"C# Queue trigger function processed: {myQueueItem}");
QueueMessage queueItem = Newtonsoft.Json.JsonConvert.DeserializeObject <QueueMessage>(myQueueItem);
OpenWeatherMapAPIClient api = new OpenWeatherMapAPIClient();
OpenWeatherMapResult weather = api.GetWeather(queueItem.cityName);
// Get storage acccount
string connectionString = Environment.GetEnvironmentVariable("AzureWebJobsStorage");
var storageAccount = CloudStorageAccount.Parse(connectionString + ";EndpointSuffix=core.windows.net");
log.Info("C# connectionstring.");
// Get queue reference
var queueClient = storageAccount.CreateCloudQueueClient();
var queue = queueClient.GetQueueReference("weatherqueue");
queue.CreateIfNotExistsAsync();
// Create Queue message to trigger FunctionSecondQueueTrigger
SecondQueueMessage secondQueueMessage = new SecondQueueMessage();
secondQueueMessage.blobName = queueItem.blobName;
secondQueueMessage.weather = weather;
string message = Newtonsoft.Json.JsonConvert.SerializeObject(secondQueueMessage);
// Add message to queue
queue.AddMessageAsync(new CloudQueueMessage(message));
}
public static void Run([QueueTrigger("weatherqueue", Connection = "AzureWebJobsStorage")] string myQueueItem, TraceWriter log)
{
log.Info($"C# Queue trigger function processed: {myQueueItem}");
SecondQueueMessage secondQueueItem = Newtonsoft.Json.JsonConvert.DeserializeObject <SecondQueueMessage>(myQueueItem);
/*
* QueueMessage queueItem = Newtonsoft.Json.JsonConvert.DeserializeObject<QueueMessage>(myQueueItem);
*
* OpenWeatherMapAPIClient api = new OpenWeatherMapAPIClient();
* OpenWeatherMapResult weather = api.GetWeather(queueItem.cityName);
*/
// Determine beer weather
string beerAdvice;
if (secondQueueItem.weather != null)
{
if ((secondQueueItem.weather.main.temp - 272.15) < 16)
{
beerAdvice = "Bier drinken wordt afgeraden.";
}
else
{
beerAdvice = "Bier drinken is mogelijk";
}
}
else
{
// Error beer advice
beerAdvice = "Fout: is de plaatsnaam correct?";
}
// Get storage acccount
string connectionString = Environment.GetEnvironmentVariable("AzureWebJobsStorage");
var storageAccount = CloudStorageAccount.Parse(connectionString + ";EndpointSuffix=core.windows.net");
// Create blob reference, permissions can remain private because a SAS token is used to retrieve the blob
var blobClient = storageAccount.CreateCloudBlobClient();
var container = blobClient.GetContainerReference("somecontainer");
container.CreateIfNotExistsAsync();
var blob = container.GetBlockBlobReference(secondQueueItem.blobName);
// Create error image
if (secondQueueItem.weather == null)
{
Bitmap errorImage = new Bitmap(600, 600);
MemoryStream errorMemoryStream = new MemoryStream();
errorImage.Save(errorMemoryStream, ImageFormat.Png);
ImageTextDrawer errorTextDrawer = new ImageTextDrawer();
blob.UploadFromStreamAsync(errorTextDrawer.DrawTextOnImage(errorMemoryStream, beerAdvice, "-", "-"));
return;
}
// Get image from Azure maps
log.Info($"C# Queue trigger function processed: azure maps");
AzureMapsRenderAPIClient azureMapsClient = new AzureMapsRenderAPIClient();
MemoryStream memoryStream = azureMapsClient.GetMap(secondQueueItem.weather.coord.lon, secondQueueItem.weather.coord.lat);
// Draw text on image
log.Info($"C# Queue trigger function processed: weer variabelen");
string temperature = (secondQueueItem.weather.main.temp - 272.15).ToString();
string windspeed = secondQueueItem.weather.wind.speed.ToString();
log.Info($"C# Queue trigger function processed: tekst tekenen");
MemoryStream outMemoryStream = new MemoryStream();
ImageTextDrawer textDrawer = new ImageTextDrawer();
outMemoryStream = textDrawer.DrawTextOnImage(memoryStream, beerAdvice, temperature, windspeed);
log.Info($"C# Queue trigger function processed: vlak voor upload");
if (!(outMemoryStream is null))
{
// Upload image
blob.UploadFromStreamAsync(outMemoryStream);
}
