This topic describes how to use the .NET SDK to delete faces.
Usage notes
When you delete faces, you must specify the IDs of the faces to be deleted and the corresponding person ID. For more information about the parameters, see API operation for deleting faces.
You must use the endpoints of the Content Moderation API to call the SDK. For more information about the API endpoints, see Endpoints.
Prerequisites
The dependencies for Content Moderation SDK for .NET are installed. For more information about how to install the dependencies, see Installation.
Note
You must use the required .NET version described in the Installation topic to install the dependencies. Otherwise, subsequent operation calls fail.
Submit a task to delete faces
using System;
using Newtonsoft.Json;
using Aliyun.Acs.Core;
using Aliyun.Acs.Core.Http;
using Aliyun.Acs.Core.Profile;
using Aliyun.Acs.Green.Model.V20180509;
using System.Collections.Generic;
namespace csharp_sdk_sample
{
class Program
{
static void Main(string[] args)
{
/**
* Common ways to obtain environment variables:
* Obtain the AccessKey ID of your RAM user: Environment.GetEnvironmentVariable("ALIBABA_CLOUD_ACCESS_KEY_ID");
* Obtain the AccessKey secret of your RAM user: Environment.GetEnvironmentVariable("ALIBABA_CLOUD_ACCESS_KEY_SECRET");
*/
DefaultProfile profile = DefaultProfile.GetProfile(
"cn-shanghai",
"We recommend that you obtain the AccessKey ID of your RAM user from environment variables",
"We recommend that you obtain the AccessKey secret of your RAM user from environment variables");
// Note: We recommend that you reuse the instantiated client as much as possible. This improves moderation performance and avoids repeated client connections.
DefaultAcsClient client = new DefaultAcsClient(profile);
DeleteFacesRequest request = new DeleteFacesRequest();
request.AcceptFormat = FormatType.JSON;
request.ContentType = FormatType.JSON;
request.Method = MethodType.POST;
request.Encoding = "UTF-8";
/**
* personId: the ID of the custom person. This parameter is required.
* faceIds: the IDs of the faces that are added.
*/
Dictionary<string, object> httpBody = new Dictionary<string, object>();
httpBody.Add("personId", "Person ID");
httpBody.Add("faceIds", new List<string> { "Face ID_1", "Face ID_2" });
request.SetContent(System.Text.Encoding.Default.GetBytes(JsonConvert.SerializeObject(httpBody)), "utf-8", FormatType.JSON);
try
{
DeleteFacesResponse response = client.GetAcsResponse(request);
if (response.HttpResponse.Status != 200)
{
Console.WriteLine("the request failed. status:{0}", response.HttpResponse.Status);
}
Console.WriteLine(System.Text.Encoding.Default.GetString(response.HttpResponse.Content));
}
catch (Exception ex)
{
Console.WriteLine("Failed with error info: {0}", ex.Message);
}
}
}
}