Add C Client examples

developing-with-nats/reconnect/buffer.md

@@ -59,6 +59,27 @@ nc.close();
 // Reconnect buffer size is not configurable on NATS Typescript client
 ```
 {% endtab %}
+
+{% tab title="C" %}
+```c
+natsConnection      *conn      = NULL;
+natsOptions         *opts      = NULL;
+natsStatus          s          = NATS_OK;
+
+s = natsOptions_Create(&opts);
+if (s == NATS_OK)
+    // Set reconnect buffer size in bytes (5 MB)
+    s = natsOptions_SetReconnectBufSize(opts, 5*1024*1024);
+if (s == NATS_OK)
+    s = natsConnection_Connect(&conn, opts);
+
+(...)
+
+// Destroy objects that were created
+natsConnection_Destroy(conn);
+natsOptions_Destroy(opts);
+```
+{% endtab %}
 {% endtabs %}
 
 > _As mentioned throughout this document, each client library may behave slightly differently. Please check the documentation for the library you are using._

developing-with-nats/reconnect/disable.md

@@ -80,5 +80,25 @@ let nc = await connect({
 nc.close();
 ```
 {% endtab %}
+
+{% tab title="C" %}
+```c
+natsConnection      *conn    = NULL;
+natsOptions         *opts    = NULL;
+natsStatus          s        = NATS_OK;
+
+s = natsOptions_Create(&opts);
+if (s == NATS_OK)
+    s = natsOptions_SetAllowReconnect(opts, false);
+if (s == NATS_OK)
+    s = natsConnection_Connect(&conn, opts);
+
+(...)
+
+// Destroy objects that were created
+natsConnection_Destroy(conn);
+natsOptions_Destroy(opts);
+```
+{% endtab %}
 {% endtabs %}
 

developing-with-nats/reconnect/events.md

@@ -112,5 +112,46 @@ nc.on('reconnect', (conn, server) => {
 nc.close();
 ```
 {% endtab %}
+
+{% tab title="C" %}
+```c
+static void
+disconnectedCB(natsConnection *conn, void *closure)
+{
+    // Handle disconnect error event
+}
+
+static void
+reconnectedCB(natsConnection *conn, void *closure)
+{
+    // Handle reconnect event
+}
+
+(...)
+
+natsConnection      *conn      = NULL;
+natsOptions         *opts      = NULL;
+natsStatus          s          = NATS_OK;
+
+s = natsOptions_Create(&opts);
+
+// Connection event handlers are invoked asynchronously
+// and the state of the connection may have changed when
+// the callback is invoked.
+if (s == NATS_OK)
+    s = natsOptions_SetDisconnectedCB(opts, disconnectedCB, NULL);
+if (s == NATS_OK)
+    s = natsOptions_SetReconnectedCB(opts, reconnectedCB, NULL);
+
+if (s == NATS_OK)
+    s = natsConnection_Connect(&conn, opts);
+
+(...)
+
+// Destroy objects that were created
+natsConnection_Destroy(conn);
+natsOptions_Destroy(opts);
+```
+{% endtab %}
 {% endtabs %}
 

developing-with-nats/reconnect/max.md

@@ -75,5 +75,25 @@ let nc = await connect({
 nc.close();
 ```
 {% endtab %}
+
+{% tab title="C" %}
+```c
+natsConnection      *conn    = NULL;
+natsOptions         *opts    = NULL;
+natsStatus          s        = NATS_OK;
+
+s = natsOptions_Create(&opts);
+if (s == NATS_OK)
+    s = natsOptions_SetMaxReconnect(opts, 10);
+if (s == NATS_OK)
+    s = natsConnection_Connect(&conn, opts);
+
+(...)
+
+// Destroy objects that were created
+natsConnection_Destroy(conn);
+natsOptions_Destroy(opts);
+```
+{% endtab %}
 {% endtabs %}
 

developing-with-nats/reconnect/random.md

@@ -90,5 +90,27 @@ let nc = await connect({
 nc.close();
 ```
 {% endtab %}
+{% tab title="C" %}
+```c
+natsConnection      *conn      = NULL;
+natsOptions         *opts      = NULL;
+natsStatus          s          = NATS_OK;
+const char          *servers[] = {"nats://127.0.0.1:1222", "nats://127.0.0.1:1223", "nats://127.0.0.1:1224"};
+
+s = natsOptions_Create(&opts);
+if (s == NATS_OK)
+    s = natsOptions_SetServers(opts, servers, 3);
+if (s == NATS_OK)
+    s = natsOptions_SetNoRandomize(opts, true);
+if (s == NATS_OK)
+    s = natsConnection_Connect(&conn, opts);
+
+(...)
+
+// Destroy objects that were created
+natsConnection_Destroy(conn);
+natsOptions_Destroy(opts);
+```
+{% endtab %}
 {% endtabs %}
 

developing-with-nats/reconnect/wait.md

@@ -76,5 +76,26 @@ let nc = await connect({
 nc.close();
 ```
 {% endtab %}
+
+{% tab title="C" %}
+```c
+natsConnection      *conn      = NULL;
+natsOptions         *opts      = NULL;
+natsStatus          s          = NATS_OK;
+
+s = natsOptions_Create(&opts);
+if (s == NATS_OK)
+    // Set reconnect interval to 10 seconds (10,000 milliseconds)
+    s = natsOptions_SetReconnectWait(opts, 10000);
+if (s == NATS_OK)
+    s = natsConnection_Connect(&conn, opts);
+
+(...)
+
+// Destroy objects that were created
+natsConnection_Destroy(conn);
+natsOptions_Destroy(opts);
+```
+{% endtab %}
 {% endtabs %}