GridGain Quick Start Guide for .NET/C#

This chapter explains how to use .NET Core to build and run a simple Hello World example that starts a node, puts a value into the cache, and then gets the value.

Prerequisites

GridGain.NET was officially tested on:

JDK

Oracle JDK 8 or 11, Open JDK 8 or 11, IBM JDK 8 or 11

.NET

.NET Core 2.0+, .NET Framework 4.0+

(Optional) Open Ports

Depending on your environment and what your plan is, you may want to open additional ports. GridGain uses the following ports:

47100-47200 — ports used by GridGain nodes to communicate. Specific ports used depend on node configuration.
47500-47600 — ports used by GridGain nodes to discover other nodes in the network. Specific ports used depend on node configuration.
10800 — the port used for thin clients, JDBC and ODBC connections.
8080 — the port used for REST API.
11211 — the port used by control script calls. This port should only be opened on nodes that need to send control script messages to other nodes.

Running a Simple .NET Example

Use the CLI (unix shell, Windows CMD or PowerShell, etc.) to run the following two commands:

> dotnet new console

This creates an empty project, which includes a project file with metadata and a .cs file with code.

And:
> dotnet add package GridGain.Ignite --version {gridgain.version}
> dotnet add package GridGain
This modifies the project file - .csproj - to add dependencies.

Open Program.cs in any text editor and replace the contents as follows:

using System;
using Apache.Ignite.Core;

namespace GridGain.GettingStarted
{
    class Program
    {
        static void Main(string[] args)
        {
          var ignite = Ignition.Start();
          var cache = ignite.GetOrCreateCache<int, string>("my-cache");
          cache.Put(1, "Hello, World");
          Console.WriteLine(cache.Get(1));
        }
    }
}

using System;
using Apache.Ignite.Core;
using GridGain.Core;

namespace GridGain.GettingStarted
{
    class Program
    {
        static void Main()
        {
            var cfg = new IgniteConfiguration
            {
                PluginConfigurations = new[]
                {
                    // Enable GridGain plugin.
                    new GridGainPluginConfiguration()
                }
            };

            IIgnite ignite = Ignition.Start(cfg);

            var cache = ignite.GetOrCreateCache<int, string>("my-cache");
            cache.Put(1, "Hello, World");
            Console.WriteLine(cache.Get(1));

            IGridGain gridGain = ignite.GetGridGain();
            Console.WriteLine(gridGain.GetProduct().GetLicense());
        }
    }
}

Save and then run the program:

> dotnet run

As a result, you should see a node launch and the "Hello, World" text displayed right after the launch.

Next Steps

From here, you may want to:

Read more about using GridGain: Developers Guide, Administrators Guide
Use GridGain Control Center to monitor your cluster
Explore the additional examples included with GridGain

© 2025 GridGain Systems, Inc. All Rights Reserved. Privacy Policy | Legal Notices. GridGain® is a registered trademark of GridGain Systems, Inc.
Apache, Apache Ignite, the Apache feather and the Apache Ignite logo are either registered trademarks or trademarks of The Apache Software Foundation.

Last updated on Jul 16, 2025