nats.docs/_examples/connect_tls_url.html

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	<pre id="connect_tls_url_go_content"><a class="toolbar-icons pull-right" target="_blank" href="https://github.com/nats-io/go-nats-examples/blob/master/api-examples/connect_tls_url/main.go#L10-19"><i class="mdi mdi-github-circle" title="View on GitHub"></i></a><a class="toolbar-icons pull-right"><i class="mdi mdi-content-copy js-copy" title="Copy to Clipboard"></i></a><span class="copy-msg pull-right"></span><code class="language-go">nc, err := nats.Connect(&#34;tls://localhost&#34;, nats.RootCAs(&#34;resources/certs/ca.pem&#34;)) // May need this if server is using self-signed certificate
if err != nil {
	log.Fatal(err)
}
defer nc.Close()

// Do something with the connection

</code></pre>
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	<pre id="connect_tls_url_java_content"><a class="toolbar-icons pull-right" target="_blank" href="https://github.com/nats-io/java-nats-examples/blob/master/src/main/java/io/nats/examples/ConnectTLSURL.java#L18-80"><i class="mdi mdi-github-circle" title="View on GitHub"></i></a><a class="toolbar-icons pull-right"><i class="mdi mdi-content-copy js-copy" title="Copy to Clipboard"></i></a><span class="copy-msg pull-right"></span><code class="language-java">class SSLUtils2 {
    public static String KEYSTORE_PATH = &#34;src/main/resources/keystore.jks&#34;;
    public static String TRUSTSTORE_PATH = &#34;src/main/resources/cacerts&#34;;
    public static String STORE_PASSWORD = &#34;password&#34;;
    public static String KEY_PASSWORD = &#34;password&#34;;
    public static String ALGORITHM = &#34;SunX509&#34;;

    public static KeyStore loadKeystore(String path) throws Exception {
        KeyStore store = KeyStore.getInstance(&#34;JKS&#34;);
        BufferedInputStream in = new BufferedInputStream(new FileInputStream(path));

        try {
            store.load(in, STORE_PASSWORD.toCharArray());
        } finally {
            if (in != null) {
                in.close();
            }
        }

        return store;
    }

    public static KeyManager[] createTestKeyManagers() throws Exception {
        KeyStore store = loadKeystore(KEYSTORE_PATH);
        KeyManagerFactory factory = KeyManagerFactory.getInstance(ALGORITHM);
        factory.init(store, KEY_PASSWORD.toCharArray());
        return factory.getKeyManagers();
    }

    public static TrustManager[] createTestTrustManagers() throws Exception {
        KeyStore store = loadKeystore(TRUSTSTORE_PATH);
        TrustManagerFactory factory = TrustManagerFactory.getInstance(ALGORITHM);
        factory.init(store);
        return factory.getTrustManagers();
    }

    public static SSLContext createSSLContext() throws Exception {
        SSLContext ctx = SSLContext.getInstance(Options.DEFAULT_SSL_PROTOCOL);
        ctx.init(createTestKeyManagers(), createTestTrustManagers(), new SecureRandom());
        return ctx;
    }
}

public class ConnectTLSURL {
    public static void main(String[] args) {

        try {
            SSLContext.setDefault(SSLUtils2.createSSLContext()); // Set the default context
            Options options = new Options.Builder().
                                server(&#34;tls://localhost:4222&#34;). // Use the TLS protocol
                                build();
            Connection nc = Nats.connect(options);
            
            // Do something with the connection

            nc.close();
        } catch (Exception e) {
            e.printStackTrace();
        }
    }
}
</code></pre>
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	<pre id="connect_tls_url_js_content"><a class="toolbar-icons pull-right" target="_blank" href="https://github.com/nats-io/node-nats-examples/blob/master/src/tls_samples.js#L26-31"><i class="mdi mdi-github-circle" title="View on GitHub"></i></a><a class="toolbar-icons pull-right"><i class="mdi mdi-content-copy js-copy" title="Copy to Clipboard"></i></a><span class="copy-msg pull-right"></span><code class="language-javascript">let nc = NATS.connect({
    url: &#34;tls://demo.nats.io:4443&#34;,
    tls: true
});
</code></pre>
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	<pre id="connect_tls_url_py_content"><a class="toolbar-icons pull-right" target="_blank" href="https://github.com/nats-io/asyncio-nats-examples/blob/master/connect_tls_url.py#L1-37"><i class="mdi mdi-github-circle" title="View on GitHub"></i></a><a class="toolbar-icons pull-right"><i class="mdi mdi-content-copy js-copy" title="Copy to Clipboard"></i></a><span class="copy-msg pull-right"></span><code class="language-python">import asyncio
import ssl
import certifi
from nats.aio.client import Client as NATS
from nats.aio.errors import ErrTimeout

async def run(loop):
    nc = NATS()

    # If using Python 3.7 in OS X and getting SSL errors, run first:
    #
    # /Applications/Python\ 3.7/Install\ Certificates.command
    #
    # Setting the tls as the scheme will use same defaults as `ssl.create_default_context()`
    #
    await nc.connect(&#34;tls://demo.nats.io:4443&#34;, loop=loop)

    async def message_handler(msg):
        subject = msg.subject
        reply = msg.reply
        data = msg.data.decode()
        print(&#34;Received a message on &#39;{subject} {reply}&#39;: {data}&#34;.format(
            subject=subject, reply=reply, data=data))

    # Simple publisher and async subscriber via coroutine.
    sid = await nc.subscribe(&#34;foo&#34;, cb=message_handler)
    await nc.flush()

    # Stop receiving after 2 messages.
    await nc.auto_unsubscribe(sid, 2)
    await nc.publish(&#34;foo&#34;, b&#39;Hello&#39;)
    await nc.publish(&#34;foo&#34;, b&#39;World&#39;)
    await nc.publish(&#34;foo&#34;, b&#39;!!!!!&#39;)
    await asyncio.sleep(1, loop=loop)
    await nc.close()
</code></pre>
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	<pre id="connect_tls_url_ruby_content"><a class="toolbar-icons pull-right" target="_blank" href="https://github.com/nats-io/ruby-nats-examples/blob/master/connect_tls_url.rb#L3-19"><i class="mdi mdi-github-circle" title="View on GitHub"></i></a><a class="toolbar-icons pull-right"><i class="mdi mdi-content-copy js-copy" title="Copy to Clipboard"></i></a><span class="copy-msg pull-right"></span><code class="language-ruby">EM.run do

  # In order to use TLS with the Ruby NATS client, use the :tls option
  # when customizing the connection with an empty block.
  options = {
    :servers =&gt; [
      &#39;nats://demo.nats.io:4443&#39;,
    ],
    :tls =&gt; {}
  }

  NATS.connect(options) do |nc|
    puts :connected
  end
end
</code></pre>
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	<pre id="connect_tls_url_ts_content"><a class="toolbar-icons pull-right" target="_blank" href="https://github.com/nats-io/ts-nats-examples/blob/master/src/tls_samples.ts#L26-33"><i class="mdi mdi-github-circle" title="View on GitHub"></i></a><a class="toolbar-icons pull-right"><i class="mdi mdi-content-copy js-copy" title="Copy to Clipboard"></i></a><span class="copy-msg pull-right"></span><code class="language-javascript">// will throw an exception if connection fails
let nc = await connect({
    url: &#34;tls://demo.nats.io:4443&#34;
});

nc.close();
</code></pre>
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