public static HttpResponseMessage Run([HttpTrigger(AuthorizationLevel.Anonymous, "get", Route = "UrlRedirect/{shortUrl}")] HttpRequestMessage req, [Table("urls")] CloudTable inputTable, string shortUrl, TraceWriter log)
{
log.Info($"C# HTTP trigger function processed a request for shortUrl {shortUrl}");
var redirectUrl = FALLBACK_URL;
if (!String.IsNullOrWhiteSpace(shortUrl))
{
shortUrl = shortUrl.Trim().ToLower();
var partitionKey = $"{shortUrl.First()}";
log.Info($"Searching for partition key {partitionKey} and row {shortUrl}.");
var startTime = DateTime.UtcNow;
var timer = System.Diagnostics.Stopwatch.StartNew();
TableOperation operation = TableOperation.Retrieve <ShortUrl>(partitionKey, shortUrl);
TableResult result = inputTable.ExecuteAsync(operation).Result;
telemetry.TrackDependency("AzureTableStorage", "Retrieve", startTime, timer.Elapsed, result.Result != null);
ShortUrl fullUrl = result.Result as ShortUrl;
if (fullUrl != null)
{
log.Info($"Found it: {fullUrl.Url}");
redirectUrl = WebUtility.UrlDecode(fullUrl.Url);
telemetry.TrackPageView(redirectUrl);
if (!string.IsNullOrWhiteSpace(fullUrl.Medium))
{
telemetry.TrackEvent(fullUrl.Medium);
}
}
}
else
{
telemetry.TrackEvent("Bad Link");
}
var res = req.CreateResponse(HttpStatusCode.Redirect);
res.Headers.Add("Location", redirectUrl);
return(res);
}
public static async Task <HttpResponseMessage> Run([HttpTrigger(AuthorizationLevel.Anonymous, "get", "post", Route = null)] HttpRequestMessage req, [Table("urls", "1", "KEY")] NextId keyTable,
[Table("urls")] CloudTable tableOut, TraceWriter log)
{
log.Info($"C# manually triggered function called with req: {req}");
if (req == null)
{
return(req.CreateResponse(HttpStatusCode.NotFound));
}
Request input = await req.Content.ReadAsAsync <Request>();
if (input == null)
{
return(req.CreateResponse(HttpStatusCode.NotFound));
}
var result = new List <Result>();
var url = input.Input;
bool tagMediums = input.TagMediums.HasValue ? input.TagMediums.Value : true;
bool tagSource = (input.TagSource.HasValue ? input.TagSource.Value : true) || tagMediums;
log.Info($"URL: {url} Tag Source? {tagSource} Tag Mediums? {tagMediums}");
if (String.IsNullOrWhiteSpace(url))
{
throw new Exception("Need a URL to shorten!");
}
if (keyTable == null)
{
keyTable = new NextId
{
PartitionKey = "1",
RowKey = "KEY",
Id = 1024
};
var keyAdd = TableOperation.Insert(keyTable);
await tableOut.ExecuteAsync(keyAdd);
}
log.Info($"Current key: {keyTable.Id}");
if (tagSource)
{
url = $"{url}?utm_source={UTM_SOURCE}";
}
if (tagMediums)
{
foreach (var medium in UTM_MEDIUMS)
{
var mediumUrl = $"{url}&utm_medium={medium}";
var shortUrl = Encode(keyTable.Id++);
log.Info($"Short URL for {mediumUrl} is {shortUrl}");
var newUrl = new ShortUrl
{
PartitionKey = $"{shortUrl.First()}",
RowKey = $"{shortUrl}",
Medium = medium,
Url = mediumUrl
};
var multiAdd = TableOperation.Insert(newUrl);
await tableOut.ExecuteAsync(multiAdd);
result.Add(new Result
{
ShortUrl = $"{SHORTENER_URL}{newUrl.RowKey}",
LongUrl = WebUtility.UrlDecode(newUrl.Url)
});
}
}
else
{
var shortUrl = Encode(keyTable.Id++);
log.Info($"Short URL for {url} is {shortUrl}");
var newUrl = new ShortUrl
{
PartitionKey = $"{shortUrl.First()}",
RowKey = $"{shortUrl}",
Url = url
};
var singleAdd = TableOperation.Insert(newUrl);
await tableOut.ExecuteAsync(singleAdd);
result.Add(new Result
{
ShortUrl = $"{SHORTENER_URL}{newUrl.RowKey}",
LongUrl = WebUtility.UrlDecode(newUrl.Url)
});
}
var operation = TableOperation.Replace(keyTable);
await tableOut.ExecuteAsync(operation);
log.Info($"Done.");
// until https://github.com/Azure/azure-webjobs-sdk/issues/1492 is resolved
// return req.CreateResponse(HttpStatusCode.OK, result);
return(new HttpResponseMessage(HttpStatusCode.OK)
{
Content = new StringContent(Newtonsoft.Json.JsonConvert.SerializeObject(result))
});
}
