Sending Structured Data

    Take a simple stock ticker that sends the symbol and price of each stock:

    {% tabs %} {% tab title=”Go” %}

    {% endtab %}

    2.     public String symbol;
    3.     public float price;
    4. }
    6. public class PublishJSON {
    7.     public static void main(String[] args) {
    8.         try {
    9.             Connection nc = Nats.connect("nats://demo.nats.io:4222");
    11.             // Create the data object
    13.             stk.price=1200;
    15.             // use Gson to encode the object to JSON
    16.             GsonBuilder builder = new GsonBuilder();
    17.             Gson gson = builder.create();
    18.             String json = gson.toJson(stk);
    20.             // Publish the message
    21.             nc.publish("updates", json.getBytes(StandardCharsets.UTF_8));
    24.             nc.close();
    25.         } catch (Exception e) {
    26.             e.printStackTrace();
    27.         }
    28.     }
    29. }

    {% endtab %}

    {% tab title=”JavaScript” %}

    {% endtab %}

    1. nc = NATS()
    3. await nc.connect(servers=["nats://demo.nats.io:4222"])

    {% endtab %}

    {% tab title=”Ruby” %}

    {% endtab %}

    {% endtab %} {% endtabs %}