Tutorial for SSO using the AWS CLI and .NET applications

Include NuGet packages AWSSDK.SSO and AWSSDK.SSOOIDC in addition to AWSSDK.S3 and AWSSDK.SecurityToken.

using System;
using System.Threading.Tasks;

// NuGet packages: AWSSDK.S3, AWSSDK.SecurityToken, AWSSDK.SSO, AWSSDK.SSOOIDC
using Amazon.Runtime;
using Amazon.Runtime.CredentialManagement;
using Amazon.S3;
using Amazon.S3.Model;
using Amazon.SecurityToken;
using Amazon.SecurityToken.Model;

namespace SSOExample.S3.CLI_login
{
    class Program
    {
        // Requirements:
        // - An SSO profile in the SSO user's shared config file.
        // - An active SSO Token.
        //    If an active SSO token isn't available, the SSO user should do the following:
        //    In a terminal, the SSO user must call "aws sso login --profile my-sso-profile".

        // Class members.
        private static string profile = "my-sso-profile";
        static async Task Main(string[] args)
        {
            // Get SSO credentials from the information in the shared config file.
            var ssoCreds = LoadSsoCredentials(profile);

            // Display the caller's identity.
            var ssoProfileClient = new AmazonSecurityTokenServiceClient(ssoCreds);
            Console.WriteLine($"\nSSO Profile:\n {await ssoProfileClient.GetCallerIdentityArn()}");

            // Display a list of the account's S3 buckets.
            // The S3 client is created using the SSO credentials obtained earlier.
            var s3Client = new AmazonS3Client(ssoCreds);
            Console.WriteLine("\nGetting a list of your buckets...");
            var listResponse = await s3Client.ListBucketsAsync();
            Console.WriteLine($"Number of buckets: {listResponse.Buckets.Count}");
            foreach (S3Bucket b in listResponse.Buckets)
            {
                Console.WriteLine(b.BucketName);
            }
            Console.WriteLine();
        }

        // Method to get SSO credentials from the information in the shared config file.
        static AWSCredentials LoadSsoCredentials(string profile)
        {
            var chain = new CredentialProfileStoreChain();
            if (!chain.TryGetAWSCredentials(profile, out var credentials))
                throw new Exception($"Failed to find the {profile} profile");
            return credentials;
        }
    }

    // Class to read the caller's identity.
    public static class Extensions
    {
        public static async Task<string> GetCallerIdentityArn(this IAmazonSecurityTokenService stsClient)
        {
            var response = await stsClient.GetCallerIdentityAsync(new GetCallerIdentityRequest());
            return response.Arn;
        }
    }
}

Include NuGet packages AWSSDK.SSO and AWSSDK.SSOOIDC in addition to AWSSDK.IdentityManagement and AWSSDK.SecurityToken.

using System;
using System.Threading.Tasks;

// NuGet packages: AWSSDK.IdentityManagement, AWSSDK.SecurityToken, AWSSDK.SSO, AWSSDK.SSOOIDC
using Amazon.Runtime;
using Amazon.Runtime.CredentialManagement;
using Amazon.IdentityManagement;
using Amazon.IdentityManagement.Model;
using Amazon.SecurityToken;
using Amazon.SecurityToken.Model;

namespace SSOExample.IAM.CLI_login
{
    class Program
    {
        // Requirements:
        // - An SSO profile in the SSO user's shared config file.
        // - An active SSO Token.
        //    If an active SSO token isn't available, the SSO user should do the following:
        //    In a terminal, the SSO user must call "aws sso login --profile my-sso-profile".

        // Class members.
        private static string profile = "my-sso-profile";
        static async Task Main(string[] args)
        {
            // Get SSO credentials from the information in the shared config file.
            var ssoCreds = LoadSsoCredentials(profile);

            // Display the caller's identity.
            var ssoProfileClient = new AmazonSecurityTokenServiceClient(ssoCreds);
            Console.WriteLine($"\nSSO Profile:\n {await ssoProfileClient.GetCallerIdentityArn()}");

            // Display a list of the account's IAM users.
            // The IAM client is created using the SSO credentials obtained earlier.
            var iamClient = new AmazonIdentityManagementServiceClient(ssoCreds);
            Console.WriteLine("\nGetting a list of IAM users...");
            var listResponse = await iamClient.ListUsersAsync();
            Console.WriteLine($"Number of IAM users: {listResponse.Users.Count}");
            foreach (User u in listResponse.Users)
            {
                Console.WriteLine(u.UserName);
            }
            Console.WriteLine();
        }

        // Method to get SSO credentials from the information in the shared config file.
        static AWSCredentials LoadSsoCredentials(string profile)
        {
            var chain = new CredentialProfileStoreChain();
            if (!chain.TryGetAWSCredentials(profile, out var credentials))
                throw new Exception($"Failed to find the {profile} profile");
            return credentials;
        }
    }

    // Class to read the caller's identity.
    public static class Extensions
    {
        public static async Task<string> GetCallerIdentityArn(this IAmazonSecurityTokenService stsClient)
        {
            var response = await stsClient.GetCallerIdentityAsync(new GetCallerIdentityRequest());
            return response.Arn;
        }
    }
}