CrmAzureKeyVaultExampleGetSecretByName.cs

string vaultName = "https://myvaulttest.vault.azure.net";
string secretName = "MyPassword";

//Retrieve the latest version of a secret by name
var getKeyByNameTask = Task.Run(async () => await GetSecretByName(token, vaultName, secretName));
Task.WaitAll(getKeyByNameTask);
if (getKeyByNameTask.Result == null)
	throw new InvalidPluginExecutionException("Error retrieving secret versions from key vault");
var retrievedSecretUrl = getKeyByNameTask.Result;
// Retrieve a secret by its url
var getKeyByUrlTask2 = Task.Run(async () => await GetSecretByUrl(token, retrievedSecretUrl));
Task.WaitAll(getKeyByUrlTask2);
if (getKeyByUrlTask2.Result == null)
	throw new InvalidPluginExecutionException("Error retrieving secret value from key vault");
//Deserialize the vault response to get the secret
GetSecretResponse getSecretResponse2 = DeserializeResponse<GetSecretResponse>(getKeyByUrlTask2.Result);
//returnedValue is the Azure Key Vault Secret
string returnedValue2 = getSecretResponse2.value;

//Get the most recent, enabled Secret value by name  - api-version is required
private async Task<string> GetSecretByName(string token, string vaultName, string secretName)
{
	string nextLink = vaultName + "/secrets/" + secretName + "/versions?api-version=2016-10-01";
	List<Value> values = new List<Value>();

	using (HttpClient httpClient = new HttpClient())
	{
		while (!string.IsNullOrEmpty(nextLink))
		{
			HttpRequestMessage request = new HttpRequestMessage(HttpMethod.Get,
				new Uri(nextLink));
			request.Headers.Authorization = new AuthenticationHeaderValue("Bearer", token);

			HttpResponseMessage response = await httpClient.SendAsync(request);

			if (!response.IsSuccessStatusCode)
				return null;

			var versions = DeserializeResponse<GetSecretVersionsResponse>(response.Content.ReadAsStringAsync().Result);
			values.AddRange(versions.value);
			nextLink = versions.nextLink;
		}
	}

	Value mostRecentValue =
		values.Where(a => a.attributes.enabled)
			.OrderByDescending(a => UnixTimeToUtc(a.attributes.created))
			.FirstOrDefault();

	return mostRecentValue?.id;
}

private DateTime UnixTimeToUtc(double unixTime)
{
	var epoch = new DateTime(1970, 1, 1, 0, 0, 0, DateTimeKind.Utc);
	var timeSpan = TimeSpan.FromSeconds(unixTime);
	return epoch.Add(timeSpan).ToUniversalTime();
}