Connecting to the Default Server

Some libraries also provide a special way to connect to a default url, which is generally nats://localhost:4222:

nc, err := nats.Connect(nats.DefaultURL)
if err != nil {
    log.Fatal(err)
}
defer nc.Close()

// Do something with the connection

let nc = NATS.connect();
nc.on('connect', (c) => {
    // Do something with the connection
    doSomething();
    // When done close it
    nc.close();
});
nc.on('error', (err) => {
    failed(err);
});

// will throw an exception if connection fails
let nc = await connect();
// Do something with the connection

// When done close it
nc.close();


// alternatively, you can use the Promise pattern
let nc1: Client;
connect()
    .then((c) => {
        nc1 = c;
        // Do something with the connection
        nc1.close();
    });
    // add a .catch/.finally

natsConnection      *conn = NULL;
natsStatus          s;

s = natsConnection_ConnectTo(&conn, NATS_DEFAULT_URL);
if (s != NATS_OK)
  // handle error

// Destroy connection, no-op if conn is NULL.
natsConnection_Destroy(conn);

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最后更新于5年前

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