If you're new to GraphQL, check out these videos featured in the Learn More section, below

• Learning GraphQL Series
• Xamarin + GraphQL
• On .NET Show, Channel 9
  • Introduction to GraphQL
  • Creating a GraphQL Backend in C#
  • Consuming GraphQL in C#

To run this sample, follow the Getting Started Instructions, below.

This app was featured at GraphQL Summit 2019.

This session on GraphQL + C# was delivered at GraphQL Summit 2019. It demonstrates how to create a GraphQL Backend in C# and connect it to a client-side mobile app written in C# using Xamarin.

The session on Xamarin + GraphQL was delivered at Xamarin Developer Summit 2019. It demonstrates how to create a Xamarin app in C# and connect it to an existing GraphQL Backend.

This special series teaches the basics of GraphQL, how to interact with an existing GraphQL endpoint, how to create your first GraphQL Server, and how to deploy your GraphQL Server to the cloud using Azure!

In this series, we cover how to create an end-to-end soolution, creating GraphQL Backend in C# and connecting to it from a C# client.

• Introduction to GraphQL
• Creating a GraphQL Backend in C#
• Consuming GraphQL in C#

The GraphQL backend is created in C# using the GraphQL NuGet Package.

GraphiQL

The mobile app is created in C# using Xamarin and the GraphQL.Client NuGet Package.

Xamarin.iOS	Xamarin.Android

This app requires us to run the GraphQL API using the terminal while using Visual Studio to build/deploy the Xamarin.iOS and/or Xamarin.Android app.

1. Open the terminal
2. In the terminal, clone this solution by entering the following command:
   • Note: If you have already downloaded the solution, skip this step

git clone https://github.com/brminnick/dotnetgraphql.git

3. In the terminal, navigate to the DotNetGraphQL.API folder by entering the following command:

• On Windows

cd [path to DotNetGraphQL folder]\Source\DotNetGraphQL.API\

• On macOS

cd [path to DotNetGraphQL folder]/Source/DotNetGraphQL.API/

4. In the terminal, run DotNetGraphQL.API.csproj by entering the following command:

dotnet run

5. Open a web browser
6. In the web browser, navgiate to http://localhost:4000
7. Confirm GraphiQL

1. In Visual Studio, open DotNetGraphQL/Source/DotNetGraphQL.sln
2. In Visual Studio, in the Solution Explorer, right-click on DotNetGraphQL.Android
3. In the right-click menu, select Set as Startup Project
4. In Visual Studio, build/deploy DotNetGraphQL.Android to an Android device
5. Confirm the list of dogs from the GraphQL API appears

Learn more about Xamarin + GraphQL

• Getting Started with Xamarin
• Getting Started with Xamarin.Forms
• Install Visual Studio (PC) + Xamarin
• Install Visual Studio for Mac + Xamarin
• Microsoft Learn: Build Mobile Apps With Xamarin.Forms
• Xamarin Source Code
  • Xamarin.iOS
  • Xamarin.Android
  • Xamarin.Forms
  • Mono

• GraphQL.org
• Using Postman with GraphQL API
• GraphQL for .NET
• GraphQL vs REST
• GraphQL vs OData
• Awesome GraphQL