Add Azure Key Vault to ASP.NET

config.cs

var azureServiceTokenProvider = new AzureServiceTokenProvider();
 
var keyVaultClient = new KeyVaultClient(
                         new KeyVaultClient.AuthenticationCallback(
                           azureServiceTokenProvider.KeyVaultTokenCallback));
 
config.AddAzureKeyVault(
           $"https://{yourvaultname}.vault.azure.net/",
           keyVaultClient,
           new DefaultKeyVaultSecretManager());