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Update structure.md
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@ -4,5 +4,107 @@ Some client libraries provide helpers to send structured data while others depen
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Take a simple _stock ticker_ that sends the symbol and price of each stock:
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!INCLUDE "../../\_examples/publish\_json.html"
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!{% tabs %}
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{% tab title="Go" %}
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```go
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nc, err := nats.Connect("demo.nats.io")
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if err != nil {
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log.Fatal(err)
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}
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defer nc.Close()
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ec, err := nats.NewEncodedConn(nc, nats.JSON_ENCODER)
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if err != nil {
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log.Fatal(err)
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}
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defer ec.Close()
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// Define the object
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type stock struct {
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Symbol string
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Price int
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}
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// Publish the message
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if err := ec.Publish("updates", &stock{Symbol: "GOOG", Price: 1200}); err != nil {
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log.Fatal(err)
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}
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```
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{% endtab %}
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{% tab title="Java" %}
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```java
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class StockForJsonPub {
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public String symbol;
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public float price;
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}
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public class PublishJSON {
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public static void main(String[] args) {
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try {
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Connection nc = Nats.connect("nats://demo.nats.io:4222");
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// Create the data object
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StockForJsonPub stk = new StockForJsonPub();
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stk.symbol="GOOG";
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stk.price=1200;
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// use Gson to encode the object to JSON
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GsonBuilder builder = new GsonBuilder();
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Gson gson = builder.create();
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String json = gson.toJson(stk);
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// Publish the message
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nc.publish("updates", json.getBytes(StandardCharsets.UTF_8));
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// Make sure the message goes through before we close
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nc.flush(Duration.ZERO);
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nc.close();
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} catch (Exception e) {
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e.printStackTrace();
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}
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}
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}
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```
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{% endtab %}
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{% tab title="JavaScript" %}
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```javascript
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let nc = NATS.connect({url: "nats://demo.nats.io:4222", json: true});
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nc.publish('updates', {ticker: 'GOOG', price: 1200});
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```
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{% endtab %}
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{% tab title="Python" %}
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```python
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nc = NATS()
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await nc.connect(servers=["nats://demo.nats.io:4222"])
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await nc.publish("updates", json.dumps({"symbol": "GOOG", "price": 1200 }).encode())
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```
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{% endtab %}
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{% tab title="Ruby" %}
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```ruby
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require 'nats/client'
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require 'json'
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NATS.start(servers:["nats://127.0.0.1:4222"]) do |nc|
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nc.publish("updates", {"symbol": "GOOG", "price": 1200}.to_json)
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end
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```
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{% endtab %}
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{% tab title="TypeScript" %}
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```typescript
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let nc = await connect({
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url: "nats://demo.nats.io:4222",
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payload: Payload.JSON
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});
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nc.publish('updates', {ticker: 'GOOG', price: 1200});
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```
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{% endtab %}
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{% endtabs %}
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