Moderate with custom image lists in C#

This article provides information and code samples to help you get started using the Content Moderator SDK for .NET to:

  • Create a custom image list
  • Add and remove images from the list
  • Get the IDs of all images in the list
  • Retrieve and update list metadata
  • Refresh the list search index
  • Screen images against images in the list
  • Delete all images from the list
  • Delete the custom list

Note

There is a maximum limit of 5 image lists with each list not to exceed 10,000 images.

The console application for this guide simulates some of the tasks you can perform with the image list API.

If you don't have an Azure subscription, create a free account before you begin.

Sign up for Content Moderator services

Before you can use Content Moderator services through the REST API or the SDK, you'll need an API subscription key. Subscribe to Content Moderator service in the Azure portal to obtain it.

Create your Visual Studio project

  1. Add a new Console app (.NET Framework) project to your solution.

    In the sample code, name the project ImageLists.

  2. Select this project as the single startup project for the solution.

Install required packages

Install the following NuGet packages:

  • Microsoft.Azure.CognitiveServices.ContentModerator
  • Microsoft.Rest.ClientRuntime
  • Newtonsoft.Json

Update the program's using statements

Add the following using statements

using Microsoft.Azure.CognitiveServices.ContentModerator;
using Microsoft.CognitiveServices.ContentModerator;
using Microsoft.CognitiveServices.ContentModerator.Models;
using Newtonsoft.Json;
using System;
using System.Collections.Generic;
using System.IO;
using System.Threading;

Create the Content Moderator client

Add the following code to create a Content Moderator client for your subscription.

Important

Update the AzureRegion and CMSubscriptionKey fields with the values of your region identifier and subscription key.

/// <summary>
/// Wraps the creation and configuration of a Content Moderator client.
/// </summary>
/// <remarks>This class library contains insecure code. If you adapt this 
/// code for use in production, use a secure method of storing and using
/// your Content Moderator subscription key.</remarks>
public static class Clients
{
	/// <summary>
	/// The region/location for your Content Moderator account, 
	/// for example, westus.
	/// </summary>
	private static readonly string AzureRegion = "YOUR API REGION";

	/// <summary>
	/// The base URL fragment for Content Moderator calls.
	/// </summary>
	private static readonly string AzureBaseURL =
		$"https://{AzureRegion}.api.cognitive.microsoft.com";

	/// <summary>
	/// Your Content Moderator subscription key.
	/// </summary>
	private static readonly string CMSubscriptionKey = "YOUR API KEY";

	/// <summary>
	/// Returns a new Content Moderator client for your subscription.
	/// </summary>
	/// <returns>The new client.</returns>
	/// <remarks>The <see cref="ContentModeratorClient"/> is disposable.
	/// When you have finished using the client,
	/// you should dispose of it either directly or indirectly. </remarks>
	public static ContentModeratorClient NewClient()
	{
		// Create and initialize an instance of the Content Moderator API wrapper.
		ContentModeratorClient client = new ContentModeratorClient(new ApiKeyServiceClientCredentials(CMSubscriptionKey));

		client.Endpoint = AzureBaseURL;
		return client;
	}
}

Initialize application-specific settings

Add the following classes and static fields to the Program class in Program.cs.

/// <summary>
/// The minimum amount of time, im milliseconds, to wait between calls
/// to the Image List API.
/// </summary>
private const int throttleRate = 3000;

/// <summary>
/// The number of minutes to delay after updating the search index before
/// performing image match operations against the list.
/// </summary>
private const double latencyDelay = 0.5;

/// <summary>
/// Define constants for the labels to apply to the image list.
/// </summary>
private class Labels
{
	public const string Sports = "Sports";
	public const string Swimsuit = "Swimsuit";
}

/// <summary>
/// Define input data for images for this sample.
/// </summary>
private class Images
{
	/// <summary>
	/// Represents a group of images that all share the same label.
	/// </summary>
	public class Data
	{
		/// <summary>
		/// The label for the images.
		/// </summary>
		public string Label;

		/// <summary>
		/// The URLs of the images.
		/// </summary>
		public string[] Urls;
	}

	/// <summary>
	/// The initial set of images to add to the list with the sports label.
	/// </summary>
	public static readonly Data Sports = new Data()
	{
		Label = Labels.Sports,
		Urls = new string[] {
			"https://moderatorsampleimages.blob.core.windows.net/samples/sample4.png",
			"https://moderatorsampleimages.blob.core.windows.net/samples/sample6.png",
			"https://moderatorsampleimages.blob.core.windows.net/samples/sample9.png"
		}
	};

	/// <summary>
	/// The initial set of images to add to the list with the swimsuit label.
	/// </summary>
	/// <remarks>We're adding sample16.png (image of a puppy), to simulate
	/// an improperly added image that we will later remove from the list.
	/// Note: each image can have only one entry in a list, so sample4.png
	/// will throw an exception when we try to add it with a new label.</remarks>
	public static readonly Data Swimsuit = new Data()
	{
		Label = Labels.Swimsuit,
		Urls = new string[] {
			"https://moderatorsampleimages.blob.core.windows.net/samples/sample1.jpg",
			"https://moderatorsampleimages.blob.core.windows.net/samples/sample3.png",
			"https://moderatorsampleimages.blob.core.windows.net/samples/sample4.png",
			"https://moderatorsampleimages.blob.core.windows.net/samples/sample16.png"
		}
	};

	/// <summary>
	/// The set of images to subsequently remove from the list.
	/// </summary>
	public static readonly string[] Corrections = new string[] {
		"https://moderatorsampleimages.blob.core.windows.net/samples/sample16.png"
	};
}

/// <summary>
/// The images to match against the image list.
/// </summary>
/// <remarks>Samples 1 and 4 should scan as matches; samples 5 and 16 should not.</remarks>
private static readonly string[] ImagesToScreen = new string[] {
	"https://moderatorsampleimages.blob.core.windows.net/samples/sample1.jpg",
	"https://moderatorsampleimages.blob.core.windows.net/samples/sample4.png",
	"https://moderatorsampleimages.blob.core.windows.net/samples/sample5.png",
	"https://moderatorsampleimages.blob.core.windows.net/samples/sample16.png"
};

/// <summary>
/// A dictionary that tracks the ID assigned to each image URL when 
/// the image is added to the list.
/// </summary>
/// <remarks>Indexed by URL.</remarks>
private static readonly Dictionary<string, int> ImageIdMap =
	new Dictionary<string, int>();

/// <summary>
/// The name of the file to contain the output from the list management operations.
/// </summary>
/// <remarks>Relative paths are relative to the execution directory.</remarks>
private static string OutputFile = "ListOutput.log";

/// <summary>
/// A static reference to the text writer to use for logging.
/// </summary>
private static TextWriter writer;

/// <summary>
/// A copy of the list details.
/// </summary>
/// <remarks>Used to initially create the list, and later to update the
/// list details.</remarks>
private static Body listDetails;

Note

Your Content Moderator service key has a requests-per-second (RPS) rate limit, and if you exceed the limit, the SDK throws an exception with a 429 error code. A free tier key has a one-RPS rate limit.

Create a method to write messages to the log file

Add the following method to the Program class.

/// <summary>
/// Writes a message to the log file, and optionally to the console.
/// </summary>
/// <param name="message">The message.</param>
/// <param name="echo">if set to <c>true</c>, write the message to the console.</param>
private static void WriteLine(string message = null, bool echo = false)
{
	writer.WriteLine(message ?? String.Empty);

	if (echo)
	{
		Console.WriteLine(message ?? String.Empty);
	}
}

Create a method to create the custom list

Add the following method to the Program class.

/// <summary>
/// Creates the custom list.
/// </summary>
/// <param name="client">The Content Moderator client.</param>
/// <returns>The response object from the operation.</returns>
private static ImageList CreateCustomList(ContentModeratorClient client)
{
	// Create the request body.
	listDetails = new Body("MyList", "A sample list",
		new BodyMetadata("Acceptable", "Potentially racy"));

	WriteLine($"Creating list {listDetails.Name}.", true);

	var result = client.ListManagementImageLists.Create(
		"application/json", listDetails);
	Thread.Sleep(throttleRate);

	WriteLine("Response:");
	WriteLine(JsonConvert.SerializeObject(result, Formatting.Indented));

	return result;
}

Create a method to add a collection of images to the list

Add the following method to the Program class. This guide does not demonstrate how to apply tags to images in the list.

/// <summary>
/// Adds images to an image list.
/// </summary>
/// <param name="client">The Content Moderator client.</param>
/// <param name="listId">The list identifier.</param>
/// <param name="imagesToAdd">The images to add.</param>
/// <param name="label">The label to apply to each image.</param>
/// <remarks>Images are assigned content IDs when they are added to the list.
/// Track the content ID assigned to each image.</remarks>
private static void AddImages(
ContentModeratorClient client, int listId,
IEnumerable<string> imagesToAdd, string label)
{
	foreach (var imageUrl in imagesToAdd)
	{
		WriteLine();
		WriteLine($"Adding {imageUrl} to list {listId} with label {label}.", true);
		try
		{
			var result = client.ListManagementImage.AddImageUrlInput(
				listId.ToString(), "application/json", new BodyModel("URL", imageUrl), null, label);

			ImageIdMap.Add(imageUrl, Int32.Parse(result.ContentId));

			WriteLine("Response:");
			WriteLine(JsonConvert.SerializeObject(result, Formatting.Indented));
		}
		catch (Exception ex)
		{
			WriteLine($"Unable to add image to list. Caught {ex.GetType().FullName}: {ex.Message}", true);
		}
		finally
		{
			Thread.Sleep(throttleRate);
		}
	}
}

Create a method to remove images from the list

Add the following method to the Program class.

/// <summary>
/// Removes images from an image list.
/// </summary>
/// <param name="client">The Content Moderator client.</param>
/// <param name="listId">The list identifier.</param>
/// <param name="imagesToRemove">The images to remove.</param>
/// <remarks>Images are assigned content IDs when they are added to the list.
/// Use the content ID to remove the image.</remarks>
private static void RemoveImages(
	ContentModeratorClient client, int listId,
	IEnumerable<string> imagesToRemove)
{
	foreach (var imageUrl in imagesToRemove)
	{
		if (!ImageIdMap.ContainsKey(imageUrl)) continue;
		int imageId = ImageIdMap[imageUrl];

		WriteLine();
		WriteLine($"Removing entry for {imageUrl} (ID = {imageId}) from list {listId}.", true);

		var result = client.ListManagementImage.DeleteImage(
			listId.ToString(), imageId.ToString());
		Thread.Sleep(throttleRate);

		ImageIdMap.Remove(imageUrl);

		WriteLine("Response:");
		WriteLine(JsonConvert.SerializeObject(result, Formatting.Indented));
	}
}

Create a method to get all of the content IDs for images in the list

Add the following method to the Program class.

/// <summary>
/// Gets all image IDs in an image list.
/// </summary>
/// <param name="client">The Content Moderator client.</param>
/// <param name="listId">The list identifier.</param>
/// <returns>The response object from the operation.</returns>
private static ImageIds GetAllImageIds(
	ContentModeratorClient client, int listId)
{
	WriteLine();
	WriteLine($"Getting all image IDs for list {listId}.", true);

	var result = client.ListManagementImage.GetAllImageIds(listId.ToString());
	Thread.Sleep(throttleRate);

	WriteLine("Response:");
	WriteLine(JsonConvert.SerializeObject(result, Formatting.Indented));

	return result;
}

Create a method to update the details of the list

Add the following method to the Program class.

/// <summary>
/// Updates the details of an image list.
/// </summary>
/// <param name="client">The Content Moderator client.</param>
/// <param name="listId">The list identifier.</param>
/// <returns>The response object from the operation.</returns>
private static ImageList UpdateListDetails(
	ContentModeratorClient client, int listId)
{
	WriteLine();
	WriteLine($"Updating details for list {listId}.", true);

	listDetails.Name = "Swimsuits and sports";

	var result = client.ListManagementImageLists.Update(
		listId.ToString(), "application/json", listDetails);
	Thread.Sleep(throttleRate);

	WriteLine("Response:");
	WriteLine(JsonConvert.SerializeObject(result, Formatting.Indented));

	return result;
}

Create a method to retrieve the details of the list

Add the following method to the Program class.

/// <summary>
/// Gets the details for an image list.
/// </summary>
/// <param name="client">The Content Moderator client.</param>
/// <param name="listId">The list identifier.</param>
/// <returns>The response object from the operation.</returns>
private static ImageList GetListDetails(
	ContentModeratorClient client, int listId)
{
	WriteLine();
	WriteLine($"Getting details for list {listId}.", true);

	var result = client.ListManagementImageLists.GetDetails(listId.ToString());
	Thread.Sleep(throttleRate);

	WriteLine("Response:");
	WriteLine(JsonConvert.SerializeObject(result, Formatting.Indented));

	return result;
}

Create a method to refresh the search index of the list

Add the following method to the Program class. Any time you update a list, you need to refresh the search index before using the list to screen images.

/// <summary>
/// Refreshes the search index for an image list.
/// </summary>
/// <param name="client">The Content Moderator client.</param>
/// <param name="listId">The list identifier.</param>
/// <returns>The response object from the operation.</returns>
private static RefreshIndex RefreshSearchIndex(
	ContentModeratorClient client, int listId)
{
	WriteLine();
	WriteLine($"Refreshing the search index for list {listId}.", true);

	var result = client.ListManagementImageLists.RefreshIndexMethod(listId.ToString());
	Thread.Sleep(throttleRate);

	WriteLine("Response:");
	WriteLine(JsonConvert.SerializeObject(result, Formatting.Indented));

	return result;
}

Create a method to match images against the list

Add the following method to the Program class.

/// <summary>
/// Matches images against an image list.
/// </summary>
/// <param name="client">The Content Moderator client.</param>
/// <param name="listId">The list identifier.</param>
/// <param name="imagesToMatch">The images to screen.</param>
private static void MatchImages(
	ContentModeratorClient client, int listId,
	IEnumerable<string> imagesToMatch)
{
	foreach (var imageUrl in imagesToMatch)
	{
		WriteLine();
		WriteLine($"Matching image {imageUrl} against list {listId}.", true);

		var result = client.ImageModeration.MatchUrlInput(
				"application/json", new BodyModel("URL", imageUrl), listId.ToString());
		Thread.Sleep(throttleRate);

		WriteLine("Response:");
		WriteLine(JsonConvert.SerializeObject(result, Formatting.Indented));
	}
}

Create a method to delete all images from the list

Add the following method to the Program class.

/// <summary>
/// Deletes all images from an image list.
/// </summary>
/// <param name="client">The Content Modertor client.</param>
/// <param name="listId">The list identifier.</param>
private static void DeleteAllImages(
	ContentModeratorClient client, int listId)
{
	WriteLine();
	WriteLine($"Deleting all images from list {listId}.", true);

	var result = client.ListManagementImage.DeleteAllImages(listId.ToString());
	Thread.Sleep(throttleRate);

	WriteLine("Response:");
	WriteLine(JsonConvert.SerializeObject(result, Formatting.Indented));
}

Create a method to delete the list

Add the following method to the Program class.

/// <summary>
/// Deletes an image list.
/// </summary>
/// <param name="client">The Content Moderator client.</param>
/// <param name="listId">The list identifier.</param>
private static void DeleteCustomList(
	ContentModeratorClient client, int listId)
{
	WriteLine();
	WriteLine($"Deleting list {listId}.", true);

	var result = client.ListManagementImageLists.Delete(listId.ToString());
	Thread.Sleep(throttleRate);

	WriteLine("Response:");
	WriteLine(JsonConvert.SerializeObject(result, Formatting.Indented));
}

Create a method to retrieve IDs for all image lists

Add the following method to the Program class.

/// <summary>
/// Gets all list identifiers for the client.
/// </summary>
/// <param name="client">The Content Moderator client.</param>
/// <returns>The response object from the operation.</returns>
private static IList<ImageList> GetAllListIds(ContentModeratorClient client)
{
	WriteLine();
	WriteLine($"Getting all image list IDs.", true);

	var result = client.ListManagementImageLists.GetAllImageLists();
	Thread.Sleep(throttleRate);

	WriteLine("Response:");
	WriteLine(JsonConvert.SerializeObject(result, Formatting.Indented));

	return result;
}

Add code to simulate the use of an image list

Add the following code to the Main method. This code simulates many of the operations that you would perform in defining and managing the list, as well as using the list to screen images. The logging features allow you to see the response objects generated by the SDK calls to the Content Moderator service.

// Create the text writer to use for logging, and cache a static reference to it.
using (StreamWriter outputWriter = new StreamWriter(OutputFile))
{
	writer = outputWriter;

	// Create a Content Moderator client.
	using (var client = Clients.NewClient())
	{
		// Create a custom image list and record the ID assigned to it.
		var creationResult = CreateCustomList(client);
		if (creationResult.Id.HasValue)
		{
			// Cache the ID of the new image list.
			int listId = creationResult.Id.Value;

			// Perform various operations using the image list.
			AddImages(client, listId, Images.Sports.Urls, Images.Sports.Label);
			AddImages(client, listId, Images.Swimsuit.Urls, Images.Swimsuit.Label);
					
			GetAllImageIds(client, listId);
			UpdateListDetails(client, listId);
			GetListDetails(client, listId);

			// Be sure to refresh search index
			RefreshSearchIndex(client, listId);

			// WriteLine();
			WriteLine($"Waiting {latencyDelay} minutes to allow the server time to propagate the index changes.", true);
			Thread.Sleep((int)(latencyDelay * 60 * 1000));

			// Match images against the image list.
			MatchImages(client, listId, ImagesToMatch);

			// Remove images
			RemoveImages(client, listId, Images.Corrections);

			// Be sure to refresh search index
			RefreshSearchIndex(client, listId);

			WriteLine();
			WriteLine($"Waiting {latencyDelay} minutes to allow the server time to propagate the index changes.", true);
			Thread.Sleep((int)(latencyDelay * 60 * 1000));

			// Match images again against the image list. The removed image should not get matched.
			MatchImages(client, listId, ImagesToMatch);

			// Delete all images from the list.
			DeleteAllImages(client, listId);

			// Delete the image list.
			DeleteCustomList(client, listId);

			// Verify that the list was deleted.
			GetAllListIds(client);
			}
		}

		writer.Flush();
		writer.Close();
		writer = null;
}

Console.WriteLine();
Console.WriteLine("Press any key to exit...");
Console.ReadKey();

Run the program and review the output

The list ID and the image content IDs are different each time you run the application. The log file written by the program has the following output:

Creating list MyList.
Response:
{
	"Id": 169642,
	"Name": "MyList",
	"Description": "A sample list",
	"Metadata": {
		"Key One": "Acceptable",
		"Key Two": "Potentially racy"
	}
}

Adding https://moderatorsampleimages.blob.core.windows.net/samples/sample4.png to list 169642 with label Sports.
Response:
{
	"ContentId": "169490",
	"AdditionalInfo": [
	{
		"Key": "Source",
		"Value": "169642"
	},
	{
		"Key": "ImageDownloadTimeInMs",
		"Value": "233"
	},
	{
		"Key": "ImageSizeInBytes",
		"Value": "2945548"
	}
	],
	"Status": {
		"Code": 3000,
		"Description": "OK",
		"Exception": null
		},
	"TrackingId": "WE_f0527c49616243c5ac65e1cc3482d390_ContentModerator.Preview_b4d3e20a-0751-4760-8829-475e5da33ce8"
}

Adding https://moderatorsampleimages.blob.core.windows.net/samples/sample6.png to list 169642 with label Sports.
Response:
{
	"ContentId": "169491",
	"AdditionalInfo": [
	{
		"Key": "Source",
		"Value": "169642"
	},
	{
		"Key": "ImageDownloadTimeInMs",
		"Value": "215"
	},
	{
		"Key": "ImageSizeInBytes",
		"Value": "2440050"
	}
	],
	"Status": {
		"Code": 3000,
		"Description": "OK",
		"Exception": null
		},
	"TrackingId": "WE_f0527c49616243c5ac65e1cc3482d390_ContentModerator.Preview_cc1eb6af-2463-4e5e-9145-2a11dcecbc30"
}

Adding https://moderatorsampleimages.blob.core.windows.net/samples/sample9.png to list 169642 with label Sports.
Response:
{
	"ContentId": "169492",
	"AdditionalInfo": [
	{
		"Key": "Source",
		"Value": "169642"
	},
	{
		"Key": "ImageDownloadTimeInMs",
		"Value": "98"
	},
	{
		"Key": "ImageSizeInBytes",
		"Value": "1631958"
	}
	],
	"Status": {
		"Code": 3000,
		"Description": "OK",
		"Exception": null
		},
	"TrackingId": "WE_f0527c49616243c5ac65e1cc3482d390_ContentModerator.Preview_01edc1f2-b448-48cf-b7f6-23b64d5040e9"
}

Adding https://moderatorsampleimages.blob.core.windows.net/samples/sample1.jpg to list 169642 with label Swimsuit.
Response:
{
	"ContentId": "169493",
	"AdditionalInfo": [
	{
		"Key": "Source",
		"Value": "169642"
	},
	{
		"Key": "ImageDownloadTimeInMs",
		"Value": "27"
	},
	{
		"Key": "ImageSizeInBytes",
		"Value": "17280"
	}
	],
	"Status": {
		"Code": 3000,
		"Description": "OK",
		"Exception": null
		},
	"TrackingId": "WE_f0527c49616243c5ac65e1cc3482d390_ContentModerator.Preview_41f7bc6f-8778-4576-ba46-37b43a6c2434"
}

Adding https://moderatorsampleimages.blob.core.windows.net/samples/sample3.png to list 169642 with label Swimsuit.
Response:
{
	"ContentId": "169494",
	"AdditionalInfo": [
	{
		"Key": "Source",
		"Value": "169642"
	},
	{
		"Key": "ImageDownloadTimeInMs",
		"Value": "129"
	},
	{
		"Key": "ImageSizeInBytes",
		"Value": "1242855"
	}
	],
	"Status": {
		"Code": 3000,
		"Description": "OK",
		"Exception": null
		},
	"TrackingId": "WE_f0527c49616243c5ac65e1cc3482d390_ContentModerator.Preview_61a48f33-eb55-4fd9-ac97-20eb0f3622a5"
}

Adding https://moderatorsampleimages.blob.core.windows.net/samples/sample4.png to list 169642 with label Swimsuit.
Unable to add image to list. Caught Microsoft.CognitiveServices.ContentModerator.Models.APIErrorException: Operation returned an invalid status code 'Conflict'

Adding https://moderatorsampleimages.blob.core.windows.net/samples/sample16.png to list 169642 with label Swimsuit.
Response:
{
	"ContentId": "169495",
	"AdditionalInfo": [
	{
		"Key": "Source",
		"Value": "169642"
	},
	{
		"Key": "ImageDownloadTimeInMs",
		"Value": "65"
	},
	{
		"Key": "ImageSizeInBytes",
		"Value": "1088127"
	}
	],
	"Status": {
		"Code": 3000,
		"Description": "OK",
		"Exception": null
		},
	"TrackingId": "WE_f0527c49616243c5ac65e1cc3482d390_ContentModerator.Preview_1c1f3de4-58b9-4aa8-82fa-1b0f479f6d7c"
}

Getting all image IDs for list 169642.
Response:
{
	"ContentSource": "169642",
	"ContentIds": [
		169490,
		169491,
		169492,
		169493,
		169494,
		169495
],
"Status": {
	"Code": 3000,
	"Description": "OK",
	"Exception": null
	},
"TrackingId": "WE_f0527c49616243c5ac65e1cc3482d390_ContentModerator.Preview_0d017deb-38fa-4701-a7b1-5b6608c79da2"
}

Updating details for list 169642.
Response:
{
	"Id": 169642,
	"Name": "Swimsuits and sports",
	"Description": "A sample list",
	"Metadata": {
		"Key One": "Acceptable",
		"Key Two": "Potentially racy"
	}
}

Getting details for list 169642.
Response:
{
	"Id": 169642,
	"Name": "Swimsuits and sports",
	"Description": "A sample list",
	"Metadata": {
		"Key One": "Acceptable",
		"Key Two": "Potentially racy"
	}
}

Refreshing the search index for list 169642.
Response:
{
	"ContentSourceId": "169642",
	"IsUpdateSuccess": true,
	"AdvancedInfo": [],
	"Status": {
		"Code": 3000,
		"Description": "RefreshIndex successfully completed.",
		"Exception": null
		},
	"TrackingId": "WE_f0527c49616243c5ac65e1cc3482d390_ContentModerator.Preview_c72255cd-55a0-415e-9c18-0b9c08a9f25b"
}
Waiting 0.5 minutes to allow the server time to propagate the index changes.

Matching image https://moderatorsampleimages.blob.core.windows.net/samples/sample1.jpg against list 169642.
Response:
{
	"TrackingId": "WE_f0527c49616243c5ac65e1cc3482d390_ContentModerator.Preview_ec384878-dbaa-4999-9042-6ac986355967",
	"CacheID": null,
	"IsMatch": true,
	"Matches": [
		{
			"Score": 1.0,
			"MatchId": 169493,
			"Source": "169642",
			"Tags": [],
			"Label": "Swimsuit"
		}
	],
	"Status": {
		"Code": 3000,
		"Description": "OK",
		"Exception": null
	}
}

Matching image https://moderatorsampleimages.blob.core.windows.net/samples/sample4.png against list 169642.
Response:
{
	"TrackingId": "WE_f0527c49616243c5ac65e1cc3482d390_ContentModerator.Preview_e9db4b8f-3067-400f-9552-d3e6af2474c0",
	"CacheID": null,
	"IsMatch": true,
	"Matches": [
		{
			"Score": 1.0,
			"MatchId": 169490,
			"Source": "169642",
			"Tags": [],
			"Label": "Sports"
		}
	],
	"Status": {
		"Code": 3000,
		"Description": "OK",
		"Exception": null
		}
}

Matching image https://moderatorsampleimages.blob.core.windows.net/samples/sample5.png against list 169642.
Response:
{
	"TrackingId": "WE_f0527c49616243c5ac65e1cc3482d390_ContentModerator.Preview_25991575-05da-4904-89db-abe88270b403",
	"CacheID": null,
	"IsMatch": false,
	"Matches": [],
	"Status": {
		"Code": 3000,
		"Description": "OK",
		"Exception": null
	}
}

Matching image https://moderatorsampleimages.blob.core.windows.net/samples/sample16.png against list 169642.
Response:
{
	"TrackingId": "WE_f0527c49616243c5ac65e1cc3482d390_ContentModerator.Preview_c65d1c91-0d8a-4511-8ac6-814e04adc845",
	"CacheID": null,
	"IsMatch": true,
	"Matches": [
		{
			"Score": 1.0,
			"MatchId": 169495,
			"Source": "169642",
			"Tags": [],
			"Label": "Swimsuit"
		}
		],
	"Status": {
		"Code": 3000,
		"Description": "OK",
		"Exception": null
	}
}

Removing entry for https://moderatorsampleimages.blob.core.windows.net/samples/sample16.png (ID = 169495) from list 169642.
Response:
""

Refreshing the search index for list 169642.
Response:
{
	"ContentSourceId": "169642",
	"IsUpdateSuccess": true,
	"AdvancedInfo": [],
	"Status": {
		"Code": 3000,
		"Description": "RefreshIndex successfully completed.",
		"Exception": null
		},
	"TrackingId": "WE_f0527c49616243c5ac65e1cc3482d390_ContentModerator.Preview_b55a375e-30a1-4612-aa7b-81edcee5bffb"
}

Waiting 0.5 minutes to allow the server time to propagate the index changes.

Matching image https://moderatorsampleimages.blob.core.windows.net/samples/sample1.jpg against list 169642.
Response:
{
	"TrackingId": "WE_f0527c49616243c5ac65e1cc3482d390_ContentModerator.Preview_00544948-2936-489c-98c8-b507b654bff5",
	"CacheID": null,
	"IsMatch": true,
	"Matches": [
		{
			"Score": 1.0,
			"MatchId": 169493,
			"Source": "169642",
			"Tags": [],
			"Label": "Swimsuit"
		}
		],
	"Status": {
		"Code": 3000,
		"Description": "OK",
		"Exception": null
	}
}

Matching image https://moderatorsampleimages.blob.core.windows.net/samples/sample4.png against list 169642.
Response:
{
	"TrackingId": "WE_f0527c49616243c5ac65e1cc3482d390_ContentModerator.Preview_c36ec646-53c2-4705-86b2-d72b5c2273c7",
	"CacheID": null,
	"IsMatch": true,
	"Matches": [
		{
			"Score": 1.0,
			"MatchId": 169490,
			"Source": "169642",
			"Tags": [],
			"Label": "Sports"
		}
		],
	"Status": {
		"Code": 3000,
		"Description": "OK",
		"Exception": null
	}
}

Matching image https://moderatorsampleimages.blob.core.windows.net/samples/sample5.png against list 169642.
Response:
{
	TrackingId": "WE_f0527c49616243c5ac65e1cc3482d390_ContentModerator.Preview_22edad74-690d-4fbc-b7d0-bf64867c4cb9",
	"CacheID": null,
	"IsMatch": false,
	"Matches": [],
	"Status": {
		"Code": 3000,
		"Description": "OK",
		"Exception": null
	}
}

Matching image https://moderatorsampleimages.blob.core.windows.net/samples/sample16.png against list 169642.
Response:
{
	"TrackingId": "WE_f0527c49616243c5ac65e1cc3482d390_ContentModerator.Preview_abd4a178-3238-4601-8e4f-cf9ee66f605a",
	"CacheID": null,
	"IsMatch": false,
	"Matches": [],
	"Status": {
		"Code": 3000,
		"Description": "OK",
		"Exception": null
	}
}

Deleting all images from list 169642.
Response:
"Reset Successful."

Deleting list 169642.
Response:
""

Getting all image list IDs.
Response:
[]

Next steps

Get the Content Moderator .NET SDK and the Visual Studio solution for this and other Content Moderator quickstarts for .NET, and get started on your integration.