How to Authenticate with Rackspace API

In this example we will Authenicate with the Rackspace API, by making a Http Request in which you set the User and Key values for API access. The response will include the both the Server Management Url and the Auth Token in it headers. The Auth Token is valid for 24 hours.

using System;
using System.Net;

public class RackspaceSecurity
{
    private string _url;

    public RackspaceSecurity(string url)
    {
        _url = url;
    }

    public AuthInfo AuthenicationRequest(string user, string key)
    {
        if(string.IsNullOrEmpty(user))
            throw new ArgumentNullException("user");

        if (string.IsNullOrEmpty(key))
            throw new ArgumentNullException("key");

        WebRequest request = WebRequest.Create(_url);

        request.Headers["X-Auth-User"] = user;
        request.Headers["X-Auth-Key"] = key;

        AuthInfo info = new AuthInfo();

        using (var response = request.GetResponse())
        {
            info.ServerManagementUrl = response.Headers["X-Server-Management-Url"];
            info.AuthToken = response.Headers["X-Auth-Token"];
        }

        return info;
    }
}

This is the class that is returned.

public class AuthInfo
{
    public string ServerManagementUrl;
    public string AuthToken;
}

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