protected MultipartFormDataContent BuildPostPayload(KapiRequest request, SearchRequest searchRequest) // This method builds the entire request as a form
{
MultipartFormDataContent retVal = new MultipartFormDataContent();
// Part #1 - Add binary image file if using a local image
if (searchRequest.LocalTransformedQueryImageUri != null)
{
string path = searchRequest.LocalTransformedQueryImageUri.LocalPath;
FileStream fs = new FileStream(path, FileMode.Open, FileAccess.Read);
StreamContent sc = new StreamContent(fs);
retVal.Add(
sc, // binay image path
"image", // name = image
"image" // filename = image
);
}
// Part #2 - Add KnowledgeRequest JSON object
var requestJson = Newtonsoft.Json.JsonConvert.SerializeObject(request);
retVal.Add(new StringContent(requestJson), "knowledgeRequest");
return(retVal);
}
protected KapiResponse AddJson(KapiRequest kapiRequest, KapiResponse kapiRespose) // This method converts the response into a JSON object
{
var root = new JObject();
root.Add("object",
// .NET object --> JSON string --> JObject graph (so that it can be rendered)
Newtonsoft.Json.Linq.JObject.Parse(
Newtonsoft.Json.JsonConvert.SerializeObject(kapiRequest)
));
kapiRespose.KapiRequestJson = root;
return(kapiRespose);
}
protected KapiRequest BuildKapiRequest(SearchRequest searchRequest) // This method fills a KapiRequest from a passed SearchRequest
{
KapiRequest kapiRequestObject = new KapiRequest();
if (searchRequest.ScaledBB.HasValue) // Crops the image if a bounding box was placed on it
{
kapiRequestObject.imageInfo.cropArea.top = searchRequest.ScaledBB.Value.ct;
kapiRequestObject.imageInfo.cropArea.left = searchRequest.ScaledBB.Value.cl;
kapiRequestObject.imageInfo.cropArea.bottom = searchRequest.ScaledBB.Value.cb;
kapiRequestObject.imageInfo.cropArea.right = searchRequest.ScaledBB.Value.cr;
}
if (string.IsNullOrEmpty(this.subscriptionId) == false) // Checks if the subscription ID exists
{
kapiRequestObject.knowledgeRequest = new KapiRequest.KnowledgeRequest()
{
subscriptionId = subscriptionId
}
}
;
if (searchRequest.QueryImageUri != null) // Checks if the queryimage url exists
{
kapiRequestObject.imageInfo.url = searchRequest.QueryImageUri.ToString();
}
if (searchRequest.CustomProperties.ContainsKey("site")) // If we have specified a Filter Site url, add it to our request
{
kapiRequestObject.knowledgeRequest.filters = new KapiRequest.KnowledgeRequest.Filters()
{
site = searchRequest.CustomProperties["site"]
};
}
return(kapiRequestObject);
}
