feat: export rpc client as js function sendRpcRequest(String, Object[])

src/main/java/com/limechain/Main.java

@@ -17,18 +17,20 @@ public class Main {
 
     public static void main(String[] args) {
         log.log("Starting LimeChain node...");
+        exportAPI(RpcClient::sendRpcRequest, JSString.valueOf("rpc"));
+
         RpcApp rpcApp = new RpcApp();
         rpcApp.start();
 
         HostNode client = new LightClient();
 
-        exportAPI(RpcClient::sendRpcRequest, JSString.valueOf("rpc"));
         // Start the client
         // NOTE: This starts the beans the client would need - mutates the global context
         client.start();
         log.log(Level.INFO, "\uD83D\uDE80Started light client!");
     }
 
-    @JSBody(params = {"f", "apiName"}, script = "window[apiName] = f")
+    @JSBody(params = {"f", "apiName"}, script = "window[apiName] = f;" +
+        "isRpcExported = true;")
     private static native void exportAPI(Function f, JSString apiName);
 }

src/main/java/com/limechain/rpc/RpcClient.java

@@ -28,7 +28,7 @@ private static String createRpcRequestJson(String method, List<Object> params) {
         return JsonUtil.stringify(request);
     }
 
-    public static String sendRpcRequest(String method, String[] params) {
+    public static String sendRpcRequest(String method, Object[] params) {
         return HttpRequest.createHttpRequest(POST, LOAD_BALANCER.getNextEndpoint(),
             createRpcRequestJson(method, List.of(params)));
     }

src/main/webapp/index.html

@@ -68,7 +68,11 @@
         //     stream.end();
         // });
     }
+    // Test
+    sendRpcRequest('system_name', []);
     main();
+    // Test 2
+    sendRpcRequest('chain_getBlock', []);
 </script>
 </body>
 </html>

src/main/webapp/js/http.js

@@ -36,3 +36,13 @@ function httpRequestSync(method, url, body) {
         throw new Error('Request failed with status ' + xhr.status);
     }
 }
+
+var isRpcExported = false;
+
+function sendRpcRequest(method, params) {
+    if (isRpcExported === false) {
+        window.setTimeout(() => sendRpcRequest(method, params), 10);
+    } else {
+        console.log(rpc.sendRequest(method, params));
+    }
+}