browser: add rpc.

bin/cli

@@ -427,6 +427,7 @@ CLI.prototype.handleNode = co(function* handleNode() {
       this.log('  $ tx [hash/address]: View transactions.');
       this.log('  $ coin [hash+index/address]: View coins.');
       this.log('  $ block [hash/height]: View block.');
+      this.log('  $ rpc [command] [args]: Execute RPC command.');
       return;
   }
 });

browser/index.html

@@ -32,7 +32,7 @@
     margin-top: 10px;
     font: 1em monospace;
   }
-  .send {
+  .rpc, .send {
     padding: 5px;
     margin-left: 5px;
     margin-top: 10px;
@@ -84,6 +84,10 @@ more bitcoin magic).</small>
   <div id="tx"></div>
 </div>
 <div id="log" class="log"></div>
+<form id="rpc" class="rpc" action="#">
+  <input type="text" name="cmd" id="cmd"
+    placeholder="RPC command (e.g. getblockchaininfo)">
+</form>
 <div id="wallet" class="wallet"></div>
 <form id="send" class="send" action="#">
   <input type="text" name="address" id="address" placeholder="Address">

browser/index.js

@@ -11,6 +11,8 @@ var floating = document.getElementById('floating');
 var send = document.getElementById('send');
 var newaddr = document.getElementById('newaddr');
 var chainState = document.getElementById('state');
+var rpc = document.getElementById('rpc');
+var cmd = document.getElementById('cmd');
 var items = [];
 var scrollback = 0;
 var logger, node, options;
@@ -45,6 +47,33 @@ logger.writeConsole = function(level, args) {
   log.scrollTop = log.scrollHeight;
 };
 
+rpc.onsubmit = function(ev) {
+  var text = cmd.value || '';
+  var argv = text.trim().split(/\s+/);
+  var method = argv.shift();
+  var params = [];
+  var i, arg, param;
+
+  cmd.value = '';
+
+  for (i = 0; i < argv.length; i++) {
+    arg = argv[i];
+    try {
+      param = JSON.parse(arg);
+    } catch (e) {
+      param = arg;
+    }
+    params.push(param);
+  }
+
+  node.rpc.execute({ method: method, params: params }).then(show, show);
+
+  ev.preventDefault();
+  ev.stopPropagation();
+
+  return false;
+};
+
 send.onsubmit = function(ev) {
   var value = document.getElementById('amount').value;
   var address = document.getElementById('address').value;
@@ -194,6 +223,7 @@ options = bcoin.config({
 bcoin.set(options);
 
 node = new bcoin.fullnode(options);
+node.rpc = new bcoin.rpc(node);
 
 node.on('error', function(err) {
   ;

lib/http/rpc.js

@@ -301,7 +301,7 @@ RPC.prototype.execute = function execute(json) {
       return this.getmemory(json.params);
 
     default:
-      throw new Error('Method not found: ' + json.method + '.');
+      return Promise.reject(new Error('Method not found: ' + json.method + '.'));
   }
 };
 

package.json

@@ -65,7 +65,6 @@
     "./lib/http/client": "./browser/empty.js",
     "./lib/http/request": "./browser/empty.js",
     "./lib/http/rpcclient": "./browser/empty.js",
-    "./lib/http/rpc": "./browser/empty.js",
     "./lib/http/server": "./browser/empty.js",
     "./lib/http/wallet": "./browser/empty.js",
     "fs": "./browser/empty.js",