public static async Task <IActionResult> LyricClassifierFunctionAsync(
[HttpTrigger(AuthorizationLevel.Function, "get", "post", Route = null)] HttpRequest req,
ILogger log)
{
log.LogInformation("C# HTTP trigger function processed a request.");
var requestBody = await new StreamReader(req.Body).ReadToEndAsync();
dynamic data = JsonConvert.DeserializeObject(requestBody);
string lyrics = data?.lyrics;
bool warmup = !string.IsNullOrEmpty((string)data?.warmup);
var httpClient = new HttpClient();
var endPoint1 = "https://lyricclassifierfunction1.azurewebsites.net/api/LyricClassifierFunctionByGenre?code=51GteH0xptU9sq0rnaMsXBtuGdaYJtVnGXiIhIuo5MO1HSkX01orIQ==";
var endPoint2 = "https://lyricclassifierfunction2.azurewebsites.net/api/LyricClassifierFunctionByGenre?code=8CxXn9jHxCa3wqjTKCBbisK9ApAC03/Jutp5enqjajAi1NyIHG6u7A==";
var endPoint3 = "https://lyricclassifierfunction3.azurewebsites.net/api/LyricClassifierFunctionByGenre?code=aya1wD5harodwkuJeaDlLB/fRLMdRyOOaFx6OWIdd0Ue0UnfWxX0xw==";
var endPoint4 = "https://lyricclassifierfunction4.azurewebsites.net/api/LyricClassifierFunctionByGenre?code=YAniGrTlK8KLFkPteb/TGdgCvXI4Su9vXjYtZr/tXKkL4HolxiZmJQ==";
var endPoint5 = "https://lyricclassifierfunction5.azurewebsites.net/api/LyricClassifierFunctionByGenre?code=O9n7i8kurkEujUTWm05NSaHsP4GTpnpG8GXo6jcLBuu3AwXoFtDuWw==";
var endPoint6 = "https://lyricclassifierfunction6.azurewebsites.net/api/LyricClassifierFunctionByGenre?code=KazhZP0UHHJyt4ShC2TL1O8Hl8mAaObJOQuIMrpqwovZp6AzbYxpHA==";
var endPoint7 = "https://lyricclassifierfunction7.azurewebsites.net/api/LyricClassifierFunctionByGenre?code=nIY0sn/tzgE5k5AM38DuL7O/izbz2Z/oeL6jMaPKUizDUXypRR53FA==";
var endPointByGenre = new Dictionary <Genre, string>
{
{ Genre.Rock, endPoint1 },
{ Genre.Electronic, endPoint2 },
{ Genre.Alternative, endPoint3 },
{ Genre.Indie, endPoint4 },
{ Genre.Pop, endPoint5 },
{ Genre.Metal, endPoint6 },
{ Genre.Folk, endPoint7 },
{ Genre.Punk, endPoint1 },
{ Genre.HipHop, endPoint2 },
{ Genre.SingerSongWriter, endPoint3 },
{ Genre.Dance, endPoint4 },
{ Genre.Soul, endPoint5 },
{ Genre.Acoustic, endPoint6 },
{ Genre.Funk, endPoint7 },
};
var result = new GenreResults();
try
{
var tasks = new List <Task <GenreResult> >();
var basePostData = new Dictionary <string, string>
{
{ "lyrics", lyrics }
};
if (warmup)
{
basePostData.Add("warmup", "true");
}
;
foreach (var kvp in endPointByGenre)
{
tasks.Add(CreateHttpCalls(httpClient, kvp.Key, kvp.Value, basePostData, warmup, log));
}
var results = await Task.WhenAll(tasks);
if (warmup)
{
log.LogInformation($"All endpoints warmed up");
return(new OkObjectResult("OK"));
}
;
result.Results = results.OrderByDescending(g => g.Result.Probability).ToList();
result.Message = "Success";
}
catch (Exception ex)
{
log.LogInformation($"Error: {ex.Message}");
result.Message = ex.Message;
}
return(new JsonResult(result));
}
public static async Task <IActionResult> Run(
[HttpTrigger(AuthorizationLevel.Function, "get", "post", Route = null)] HttpRequest req,
ILogger log)
{
log.LogInformation("C# HTTP trigger function processed a request.");
var requestBody = await new StreamReader(req.Body).ReadToEndAsync();
dynamic data = JsonConvert.DeserializeObject(requestBody);
string lyrics = data?.lyrics;
string warmup = data?.warmup;
// Can call function to warm it up
if (!string.IsNullOrEmpty(warmup))
{
log.LogInformation($"Warmup called");
return(new OkObjectResult("OK"));
}
var result = new GenreResults();
try
{
if (!string.IsNullOrWhiteSpace(lyrics))
{
// These have enough data to form a prediction
var genres = new List <Genre>
{
Genre.Rock,
Genre.Electronic,
Genre.Alternative,
Genre.Indie,
Genre.Pop,
Genre.Metal,
Genre.Folk,
Genre.Punk,
Genre.HipHop,
Genre.SingerSongWriter,
Genre.Dance,
Genre.Soul,
Genre.Acoustic,
Genre.Funk
};
var bag = new ConcurrentBag <GenreResult>();
await genres.ParallelForEachAsync(async genre =>
{
var genreResult = await GenreClassification.GetGenreResult(genre, lyrics, log);
bag.Add(genreResult);
});
result.Results = bag.OrderByDescending(g => g.Result.Probability).ToList();
result.Message = "Success";
}
else
{
result.Message = "No lyrics submitted";
}
}
catch (Exception ex)
{
log.LogInformation($"Error: {ex.Message}");
result.Message = ex.Message;
}
return(new JsonResult(result));
}
