Integrate libp2p-ping

Author: fbaiodias

package.json

@@ -45,6 +45,7 @@
   },
   "dependencies": {
     "babel-runtime": "^6.11.6",
+    "libp2p-ping": "^0.2.0",
     "libp2p-secio": "^0.5.0",
     "libp2p-spdy": "^0.9.0",
     "libp2p-swarm": "^0.23.0",
@@ -62,4 +63,4 @@
     "Richard Littauer <richard.littauer@gmail.com>",
     "greenkeeperio-bot <support@greenkeeper.io>"
   ]
-}
+}

src/index.js

@@ -11,6 +11,7 @@ const EE = require('events').EventEmitter
 const multiaddr = require('multiaddr')
 const PeerBook = require('peer-book')
 const mafmt = require('mafmt')
+const Ping = require('libp2p-ping')
 
 exports = module.exports
 
@@ -200,6 +201,12 @@ exports.Node = function Node (pInfo, pBook) {
     return this.swarm.unhandle(protocol)
   }
 
+  Ping.attach(this.swarm) // Enable this peer to echo Ping requests
+
+  this.ping = (peerDst) => {
+    return new Ping(this.swarm, peerDst) // Ping peerDst, peerDst must be a peer-info object
+  }
+
   this.discovery = new EE()
   this.routing = null
   this.records = null

test/webrtc-star-only.js

@@ -116,4 +116,13 @@ describe('libp2p-ipfs-browser (webrtc only)', function () {
       }, 2000)
     })
   })
+
+  it('node1 ping to node2', (done) => {
+    const p = node1.ping(node2.peerInfo)
+
+    p.once('ping', (time) => {
+      p.stop()
+      done()
+    })
+  })
 })