public async Task <TargetSearchResults> QuerySimilarTargets(byte[] image)
{
GoogleCredential cred = this.CreateCredentials();
var channel = new Channel(ProductSearchClient.DefaultEndpoint.Host, ProductSearchClient.DefaultEndpoint.Port, cred.ToChannelCredentials());
try
{
var imageAnnotatorClient = ImageAnnotatorClient.Create(channel);
var options = new GetSimilarProductsOptions
{
ProjectID = this.options.Value.ProjectId,
ComputeRegion = this.options.Value.LocationId,
ProductSetId = this.options.Value.ProductSetId,
ProductCategory = "apparel",
Filter = string.Empty,
ImageBinaries = image,
};
return(await this.GetSimilarProductsFile(imageAnnotatorClient, options));
}
catch (AnnotateImageException e)
{
this.logger.LogError(e, "The google cloud image recognition service threw an error.");
return(new TargetSearchResults
{
Results = new TargetSearchResultEntry[0],
});
}
finally
{
await channel.ShutdownAsync();
}
}
private async Task <TargetSearchResults> GetSimilarProductsFile(ImageAnnotatorClient imageAnnotatorClient, GetSimilarProductsOptions opts)
{
// Create annotate image request along with product search feature.
Image image = Image.FromBytes(opts.ImageBinaries);
// Product Search specific parameters
var productSearchParams = new ProductSearchParams
{
ProductSetAsProductSetName = new ProductSetName(opts.ProjectID,
opts.ComputeRegion,
opts.ProductSetId),
ProductCategories = { opts.ProductCategory },
Filter = opts.Filter
};
// Search products similar to the image.
ProductSearchResults results = await imageAnnotatorClient.DetectSimilarProductsAsync(image, productSearchParams);
return(this.mapper.Map <TargetSearchResults>(results));
}
