public static async Task Run(
[EventHubTrigger(HubNames.ClickEventsHub, Connection = "CloudSettings:EventHubListenerConnectionString")] LinkClickedMessage events,
[Table(TableNames.Hits)] CloudTable table,
ILogger log)
{
var entity = new HitEntity
{
PartitionKey = PartitionKeys.Hit,
RowKey = Guid.NewGuid().ToString(),
CreatedOn = events.ClickedAt,
ShortCode = events.Key,
Timestamp = DateTimeOffset.UtcNow
};
var operation = TableOperation.Insert(entity);
await table.CreateIfNotExistsAsync();
await table.ExecuteAsync(operation);
}
public async Task <IActionResult> ResolveShortCode(
[HttpTrigger(AuthorizationLevel.Anonymous, "get", Route = "{path?}")]
HttpRequest req,
[EventHub(HubNames.ClickEventsHub, Connection = "CloudSettings:EventHubSenderConnectionString")]
IAsyncCollector <LinkClickedMessage> outputEvents,
string path)
{
var targetUrl = "https://app.4dn.me/";
var now = DateTimeOffset.UtcNow;
if (!string.IsNullOrWhiteSpace(path) && Regex.IsMatch(path, Constants.ShortCodeRegularExpression))
{
var targetEndpoint = await _shortLinksService.ResolveAsync(path);
if (!string.IsNullOrWhiteSpace(targetEndpoint))
{
_logger.LogInformation($"Path '{path}' was resolved to endpoint {targetEndpoint}, now redirecting.");
targetUrl = targetEndpoint;
var message = new LinkClickedMessage
{
Key = path,
ClickedAt = now
};
await outputEvents.AddAsync(message);
await outputEvents.FlushAsync();
}
else
{
_logger.LogInformation($"The path ({path}) was not configured as a valid shortlink");
}
}
else
{
_logger.LogInformation($"No matching path came in ({path}) so redirecting to the app");
}
return(new RedirectResult(targetUrl, true));
}
