public static async Task <IActionResult> Run(
[HttpTrigger(AuthorizationLevel.Function, "get")] HttpRequest req,
ILogger log)
{
log.LogInformation("C# HTTP trigger function processed a request.");
CloudTable table = StaticHelpers.GetTable("IotTableHourly");
List <ResponseItem> allItems = await StaticHelpers.GetAlltableItemAsyncResponseItem(table);
int daysInt = 7;
string days = req.Query["days"];
if (!String.IsNullOrWhiteSpace(days))
{
daysInt = int.Parse(days);
}
var filteredItems =
allItems
.Where(i => DateTime.ParseExact(i.RowKey, "dd-MM-yyyy HH:mm:ss", CultureInfo.InvariantCulture) >= DateTime.Now.AddDays(-daysInt))
.ToList();
if (filteredItems.Count != 0)
{
string top = req.Query["top"];
if (!String.IsNullOrWhiteSpace(top))
{
int topint = Int32.Parse(top);
return(new OkObjectResult(filteredItems.Take(topint)));
}
else
{
return(new OkObjectResult(filteredItems));
}
}
else
{
return(new BadRequestResult());
}
}
private static async Task CleanUpOldItemsAsync(List <MyTableEntity> allItems)
{
CloudTable table = StaticHelpers.GetTable("IotTable");
int rowOffset = 0;
while (rowOffset < allItems.Count)
{
var batch = new TableBatchOperation();
// next batch
var rows = allItems
.Skip(rowOffset)
.Take(100)
.ToList();
rows.ForEach(item => batch.Add(TableOperation.Delete(item)));
// submit
await table.ExecuteBatchAsync(batch);
rowOffset += rows.Count;
}
}
public static async Task RunAsync([TimerTrigger("0 50 23 * * * ")] TimerInfo myTimer, ILogger log)
{
log.LogInformation($"C# Timer trigger function executed at: {DateTime.Now}");
CloudTable table = StaticHelpers.GetTable("IotTableHourly");
List <ResponseItem> allItems = await StaticHelpers.GetAlltableItemResponseAsync(table, DateTime.Now.ToString("MMMM-yyyy"));
allItems.ForEach(i =>
{
var date = DateTime.ParseExact(s: i.RowKey, format: "dd-MM-yyyy HH:mm:ss", CultureInfo.InvariantCulture);
i.RowKey = date.Day.ToString();
});
List <string> DateRanges = allItems.Select(i => i.RowKey).Distinct().ToList();
List <ResponseItem> result = new List <ResponseItem>();
foreach (var item in DateRanges)
{
List <ResponseItem> range = allItems.Where(i => i.RowKey == item).ToList();
ResponseItem entity = new ResponseItem
{
PartitionKey = range[0].PartitionKey,
RowKey = item,
humidity = (int)Math.Round(range.Average(i => i.humidity), 0),
temperature = (int)Math.Round(range.Average(i => i.temperature), 0),
AQI = (int)Math.Round(range.Average(i => i.AQI), 0)
};
result.Add(entity);
}
CloudTable tableDaily = StaticHelpers.GetTable("IotTableDaily");
foreach (var item in result)
{
await tableDaily.ExecuteAsync(TableOperation.InsertOrReplace(item));
}
}
