public async Task TestClusterConnectionWithAuthAsync()
{
var resolver = new NatsConnectionResolver();
resolver.Configure(ConfigParams.FromTuples(
"connections.0.protocol", "nats",
"connections.0.host", "server1",
"connections.0.port", 4222,
"connections.1.protocol", "nats",
"connections.1.host", "server2",
"connections.1.port", 4222,
"connections.2.protocol", "nats",
"connections.2.host", "server3",
"connections.2.port", 4222,
"credential.username", "test",
"credential.password", "pass123",
"credential.token", "ABC"
));
var connection = await resolver.ResolveAsync(null);
Assert.Equal("nats://server1:4222,nats://server2:4222,nats://server3:4222", connection.GetAsString("uri"));
Assert.Equal("test", connection.GetAsString("username"));
Assert.Equal("pass123", connection.GetAsString("password"));
Assert.Equal("ABC", connection.GetAsString("token"));
}
public async Task TestSingleConnectionAsync()
{
var resolver = new NatsConnectionResolver();
resolver.Configure(ConfigParams.FromTuples(
"connection.protocol", "nats",
"connection.host", "localhost",
"connection.port", 4222
));
var connection = await resolver.ResolveAsync(null);
Assert.Equal("nats://localhost:4222", connection.GetAsString("uri"));
Assert.Null(connection.GetAsString("username"));
Assert.Null(connection.GetAsString("password"));
Assert.Null(connection.GetAsString("token"));
}
/// <summary>
/// Opens the component.
/// </summary>
/// <param name="correlationId">(optional) transaction id to trace execution through call chain.</param>
public async Task OpenAsync(string correlationId)
{
var options = await _connectionResolver.ResolveAsync(correlationId);
var opts = ConnectionFactory.GetDefaultOptions();
opts.AllowReconnect = _retryConnect;
opts.MaxReconnect = _maxReconnect;
opts.ReconnectWait = _reconnectTimeout;
var uri = options.GetAsString("uri");
opts.Servers = uri.Split(',');
var username = options.GetAsString("username");
if (!string.IsNullOrEmpty(username))
{
opts.User = username;
var password = options.GetAsString("password");
opts.Password = password;
}
var token = options.GetAsString("token");
if (!string.IsNullOrEmpty(token))
{
opts.Token = token;
}
try
{
var connection = new ConnectionFactory().CreateConnection(opts);
_connection = connection;
}
catch (Exception ex)
{
_logger.Error(correlationId, ex, "Failed to connect to NATS broker at " + uri);
throw ex;
}
_logger.Debug(correlationId, "Connected to NATS broker at " + uri);
}