octokit.net/samples/linqpad-samples/8-gists.linq

<Query Kind="Program">
  <NuGetReference>Octokit</NuGetReference>
  <NuGetReference>Octokit.Reactive</NuGetReference>
  <NuGetReference>Rx-Main</NuGetReference>
  <Namespace>Octokit</Namespace>
  <Namespace>Octokit.Reactive</Namespace>
  <Namespace>System</Namespace>
  <Namespace>System.Reactive.Linq</Namespace>
  <Namespace>System.Threading.Tasks</Namespace>
</Query>

async Task Main(string[] args)
{
	var userName = string.Empty;
	GitHubClient client = new GitHubClient(new Octokit.ProductHeaderValue("Octokit.Samples"));
	userName = "naveensrinivasan";
	client.Credentials = new Credentials(Util.GetPassword("github"));
	
	var observableclient = new ObservableGitHubClient(client);
	
	var gists = await observableclient.Gist.GetAllForUser(userName).Dump();
	
	//Create A gist
	var gist = new NewGist() { Description = "Gist from LinqPad", Public = true};
	gist.Files.Add("test","Test file");
	
	//Star a gist
	var createdgist = await observableclient.Gist.Create(gist);
	await observableclient.Gist.Star(createdgist.Id);
	
	// Add a comment to the gist
	var comment = await observableclient.Gist
		.Comment.Create(createdgist.Id,"Comment from linqpad").Dump();
}