Gets the secret value from Azure Key Vault and establish SharePoint connection

GetSecretAsyncInAzureFunction.cs

[FunctionName("Function1")]
public static async Task<IActionResult> Run(
    [HttpTrigger(AuthorizationLevel.Function, "get", "post", Route = null)] HttpRequest req,
    ILogger log)
{
    log.LogInformation("C# HTTP trigger function processed a request.");
    
    const string secretName = "Test";
    var keyVaultName = "test-blog-kv";
    var kvUri = $"https://{keyVaultName}.vault.azure.net";
    var client = new SecretClient(new Uri(kvUri), new DefaultAzureCredential());
    var secret = await client.GetSecretAsync(secretName);            
    var cert = new X509Certificate2(Convert.FromBase64String(secret.Value.Value));
    var cc = new PnP.Framework.AuthenticationManager("<Azure App Registration Client ID>", cert, "<Tenant ID>", null, PnP.Framework.AzureEnvironment.Production, null).GetContext("https://Tenant.sharepoint.com");
    cc.Load(cc.Web);
    cc.ExecuteQuery();

    return new OkObjectResult("Title of web: " + cc.Web.Title);
}