rpc: add uptime

lib/node/http.js

@@ -148,6 +148,10 @@ class HTTP extends Server {
       });
     });
 
+    this.get('/uptime', async (req, res) => {
+      res.json(200, { uptime: this.node.uptime().toString()});
+    });
+
     // UTXO by address
     this.get('/coin/address/:address', async (req, res) => {
       const valid = Validator.fromRequest(req);

package.json

@@ -53,7 +53,8 @@
   "devDependencies": {
     "eslint": "^5.1.0",
     "istanbul": "^1.1.0-alpha.1",
-    "mocha": "^5.2.0"
+    "mocha": "^5.2.0",
+    "mockdate": "^2.0.2"
   },
   "main": "./lib/bcoin.js",
   "bin": {

test/http-test.js

@@ -69,6 +69,19 @@ describe('HTTP', function() {
     assert.strictEqual(info.chain.height, 0);
   });
 
+  it('should get uptime', async () => {
+    const MockDate = require('mockdate');
+    const mockedNow = 1225476600;
+    MockDate.set(mockedNow * 1000);
+
+    node.startTime = (mockedNow - 100) * 1000;
+    const uptime = await nclient.getUptime();
+    assert.strictEqual(uptime.uptime, '100');
+
+    MockDate.reset();
+    node.startTime = -1;
+  });
+
   it('should get wallet info', async () => {
     const info = await wallet.getInfo();
     assert.strictEqual(info.id, 'test');