C#

You can integrate the Ditto SDK into C# projects to develop for platforms, including mobile apps for iOS and Android, desktop apps, Linux-enabled server systems, and more.
For a complete overview of the platforms, transports, and devices, see the C# Compatibility Map﻿.
For the API reference, see Ditto 4.7.1 API Reference Documentation.
To install the C# SDK:
1
Confirm that you meet the minimum requirements. (Prerequisites﻿)
2
Install the Ditto SDK. (Installing Dependencies﻿)
3
Set up your app permissions. (Configuring Permissions﻿)
4
Add Ditto to your app. (Initializing Ditto﻿)
Prerequisites
Following are the minimum requirements that must be met before attempting to install Ditto:
﻿.NET Standard 2.1 
﻿.NET Core 3 
﻿.NET Framework 4.0﻿
Installing Dependencies
Using either a compatible package manager, the .NET CLI, or by adding a reference to the package: CSProj.xml file, install the Ditto SDK by doing any of the following:
If using a package manager other than NuGet, the official package manager for .NET, the command syntax to install Ditto may differ from the following snippet. For more information, see the official Nuget documentation > Ditto .NET Standard.﻿
NuGet Package Manager
.NET CLI
CSProj XML
Install-Package Ditto -Version 4.7.2
dotnet add package Ditto --version 4.7.2
<PackageReference Include="Ditto" Version="4.7.2" />
For the official .NET standard for Ditto, see the official NuGet reference at Packages > Ditto.
Configuring Permissions
To set up your environment for your target platform:
iOS Target
Android Target
For apps targeting iOS; for example, MAUI, once you've added the Ditto package dependency, configure permissions and ensure your app continues syncing while running in the background, including when the end-user device is locked, by enabling background modes.
1
Open the Info.Plist file for your project.
2
Add the following key-value pairs, and then, if desired, modify each string value:
XML
<key>NSBluetoothAlwaysUsageDescription</key>
<string>Uses Bluetooth to connect and sync with nearby devices</string>
<key>NSLocalNetworkUsageDescription</key>
<string>Uses WiFi to connect and sync with nearby devices</string>
<key>NSBonjourServices</key>
<array>
<string>_http-alt._tcp.</string>
</array>
<key>NSBluetoothAlwaysUsageDescription</key>
<string>Uses Bluetooth to connect and sync with nearby devices</string>
<key>NSLocalNetworkUsageDescription</key>
<string>Uses WiFi to connect and sync with nearby devices</string>
<key>NSBonjourServices</key>
<array>
<string>_http-alt._tcp.</string>
</array>
﻿
3
Enable Bluetooth Background Modes:
XML
<key>UIBackgroundModes</key>
<array>
<string>bluetooth-central</string>
<string>bluetooth-peripheral</string>
</array>
<key>UIBackgroundModes</key>
<array>
<string>bluetooth-central</string>
<string>bluetooth-peripheral</string>
</array>
﻿
For apps targeting Android, once you've added the Ditto package dependency, configure the necessary permissions:
1
Open the AndroidManifest.xml file typically located in the src/main/ directory of your project.
2
Add the necessary permissions to ensure your app has the permissions required by Ditto:
For instructions on how to modify the following configuration for permissions requests; for example, prevent your app from requesting unnecessary permissions on newer OS versions or ensure compatibility with both older and newer OS versions, see Customizing Permissions﻿.
XML
<manifest
xmlns:tools="http://schemas.android.com/tools"
xmlns:android="http://schemas.android.com/apk/res/android">
<uses-permission android:name="android.permission.BLUETOOTH"
android:maxSdkVersion="30" />
<uses-permission android:name="android.permission.BLUETOOTH_ADMIN"
android:maxSdkVersion="30" />
<uses-permission android:name="android.permission.BLUETOOTH_ADVERTISE"
tools:targetApi="s" />
<uses-permission android:name="android.permission.BLUETOOTH_CONNECT"
tools:targetApi="s" />
<uses-permission android:name="android.permission.BLUETOOTH_SCAN"
android:usesPermissionFlags="neverForLocation"
tools:targetApi="s" />
<uses-permission android:name="android.permission.ACCESS_FINE_LOCATION"
android:maxSdkVersion="32" />
<uses-permission android:name="android.permission.ACCESS_COARSE_LOCATION"
android:maxSdkVersion="30" />
<uses-permission android:name="android.permission.INTERNET" />
<uses-permission android:name="android.permission.ACCESS_WIFI_STATE" />
<uses-permission android:name="android.permission.ACCESS_NETWORK_STATE" />
<uses-permission android:name="android.permission.CHANGE_NETWORK_STATE" />
<uses-permission
android:name="android.permission.CHANGE_WIFI_MULTICAST_STATE" />
<uses-permission android:name="android.permission.CHANGE_WIFI_STATE" />
<uses-permission android:name="android.permission.NEARBY_WIFI_DEVICES"
android:usesPermissionFlags="neverForLocation"
tools:targetApi="tiramisu" />
<manifest
xmlns:tools="http://schemas.android.com/tools"
xmlns:android="http://schemas.android.com/apk/res/android">
<uses-permission android:name="android.permission.BLUETOOTH"
android:maxSdkVersion="30" />
<uses-permission android:name="android.permission.BLUETOOTH_ADMIN"
android:maxSdkVersion="30" />
<uses-permission android:name="android.permission.BLUETOOTH_ADVERTISE"
tools:targetApi="s" />
<uses-permission android:name="android.permission.BLUETOOTH_CONNECT"
tools:targetApi="s" />
<uses-permission android:name="android.permission.BLUETOOTH_SCAN"
android:usesPermissionFlags="neverForLocation"
tools:targetApi="s" />
<uses-permission android:name="android.permission.ACCESS_FINE_LOCATION"
android:maxSdkVersion="32" />
<uses-permission android:name="android.permission.ACCESS_COARSE_LOCATION"
android:maxSdkVersion="30" />
<uses-permission android:name="android.permission.INTERNET" />
<uses-permission android:name="android.permission.ACCESS_WIFI_STATE" />
<uses-permission android:name="android.permission.ACCESS_NETWORK_STATE" />
<uses-permission android:name="android.permission.CHANGE_NETWORK_STATE" />
<uses-permission
android:name="android.permission.CHANGE_WIFI_MULTICAST_STATE" />
<uses-permission android:name="android.permission.CHANGE_WIFI_STATE" />
<uses-permission android:name="android.permission.NEARBY_WIFI_DEVICES"
android:usesPermissionFlags="neverForLocation"
tools:targetApi="tiramisu" />
﻿
Customizing Permissions
To modify the behavior of permission requests for the Android target: 
Features related to runtime permissions management for Android is planned for future release.
1
Add the following namespace attribute to the root <manifest> tag of your AndroidManifest.xml file:
XML
xmlns:tools="http://schemas.android.com/tools"
xmlns:tools="http://schemas.android.com/tools"
﻿
2
To request permissions on all OS versions of Android:
XML
<uses-permission android:name="android.permission.ACCESS_FINE_LOCATION"
tools:remove="android:maxSdkVersion" />
<uses-permission android:name="android.permission.ACCESS_COARSE_LOCATION"
tools:remove="android:maxSdkVersion" />
<uses-permission android:name="android.permission.ACCESS_FINE_LOCATION"
tools:remove="android:maxSdkVersion" />
<uses-permission android:name="android.permission.ACCESS_COARSE_LOCATION"
tools:remove="android:maxSdkVersion" />
﻿
3
To limit permissions request, use the following attributes as desired:
﻿tools:targetApi﻿﻿
﻿android:maxSdkVersion﻿﻿
tools:targetApi
The tools:targetApi attribute allows you to specify that a permission should only be requested on devices running a specified Android API level or higher.
By limiting permissions requests, you prevent errors that result from asking permissions on devices running older OS versions of Android.
android:maxSdkVersion
With the android:maxSdkVersion attribute, you can customize to only initiate a permission request on devices running a specified Android API level or lower.
Setting to a specified API level or lower helps avoids unnecessary permissions requests on devices running newer OS versions of Android.
Initializing Ditto
Once you’ve installed the Ditto SDK, set the debug level you want Ditto to log messages for, create a new Ditto identity, and set up Ditto exception handling for data sync operations: 
C#
try
{
    DittoLogger.SetMinimumLogLevel(DittoLogLevel.Debug);
    var ditto = new Ditto(DittoIdentity.OnlinePlayground("REPLACE_ME_WITH_YOUR_APP_ID", "REPLACE_ME_WITH_YOUR_PLAYGROUND_TOKEN", true), path);
    ditto.StartSync();
}
catch (DittoException ex)
{
    Console.WriteLine($"Ditto Error {ex.Message}");
}
try
{
    DittoLogger.SetMinimumLogLevel(DittoLogLevel.Debug);
    var ditto = new Ditto(DittoIdentity.OnlinePlayground("REPLACE_ME_WITH_YOUR_APP_ID", "REPLACE_ME_WITH_YOUR_PLAYGROUND_TOKEN", true), path);
    ditto.StartSync();
}
catch (DittoException ex)
{
    Console.WriteLine($"Ditto Error {ex.Message}");
}
﻿
Next Steps
Learn how to build a task list app built on .NET Maui and integrated with Ditto by going to the MAUI Task App﻿ how-to tutorial.
Updated 27 Jun 2024
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