public DetectFacesResponse Recognise(RecogniseParams recParam)
{
//1. PutObjectIntoS3
if (String.IsNullOrEmpty(recParam.PhotoName))
{
throw new Exception("AmazonRekognition Recognise method: photoName parameter must have value.");
}
var photoName = $"{recParam.PhotoName}_{DateTime.Now}";
var pop = new PutObjectParams()
{
PhotoName = photoName,
PhotoVersion = recParam.PhotoVersion,
BucketName = recParam.BucketName,
RegEndpoint = recParam.RegEndpoint,
InputStrem = recParam.InputStream,
ContentType = recParam.ContentType
};
var resp = PutObjectIntoS3(pop);
if (resp == null)
{
throw new Exception($"PutObjectIntoS3 response is null in Recognise method PhotoName: {photoName}");
}
//2. DetectFaces
var dfp = new DetectFaceParams()
{
PhotoName = photoName,
PhotoVersion = recParam.PhotoVersion,
BucketName = recParam.BucketName,
RegEndpoint = recParam.RegEndpoint
};
var detectFaceResp = DetectFaces(dfp);
if (detectFaceResp == null)
{
throw new Exception($"DetectFaces response is null in Recognise method PhotoName: {photoName}");
}
return(detectFaceResp);
}
public void RecogniseTest()
{
Stream stream = new MemoryStream(GetFileBytes());
//Arrange
var req = new RecogniseParams()
{
PhotoName = "steve",
PhotoVersion = String.Empty,
BucketName = "nvirginiadekanybucket",
RegEndpoint = RegionEndpoint.USEast1,
InputStream = stream,
ContentType = "image/jpeg"
};
//Act
AmazonRekognition service = new AmazonRekognition(awsAccessKeyId, awsSecretAccessKey);
var resp = service.Recognise(req);
//Assert
Assert.AreEqual(System.Net.HttpStatusCode.OK, resp.HttpStatusCode);
}
//public IHttpActionResult Recognize([FromBody]String base64String)
public IHttpActionResult Recognize(RecognizeParam param)
{
if (String.IsNullOrEmpty(param.Base64String))
{
return(BadRequest("Bad request: base64String parameter must have value."));
}
var stream = new MemoryStream();
var photoBytes = Convert.FromBase64String(param.Base64String);
using (var ms = new MemoryStream(photoBytes, 0, photoBytes.Length))
{
Image image = Image.FromStream(ms, true);
image.Save(stream, ImageFormat.Jpeg);
}
var awsAccessKeyId = ConfigurationManager.AppSettings["awsAccessKeyId"];
var awsSecretAccessKey = ConfigurationManager.AppSettings["awsSecretAccessKey"];
var bucketName = ConfigurationManager.AppSettings["bucketName"];
var photoName = $"{DateTime.Now}_{Guid.NewGuid()}";
var req = new RecogniseParams()
{
PhotoName = photoName,
PhotoVersion = "1",
BucketName = bucketName,
RegEndpoint = RegionEndpoint.USEast1,
InputStream = stream,
ContentType = "image/jpeg"
};
AmazonRekognition service = new AmazonRekognition(awsAccessKeyId, awsSecretAccessKey);
var resp = service.Recognise(req);
return(Ok(resp));
}
