From 8c49610dff2864fc132cdfd2312446386f8e9271 Mon Sep 17 00:00:00 2001
From: David Dias <daviddias.p@gmail.com>
Date: Mon, 27 Mar 2017 12:38:48 +0100
Subject: [PATCH 1/3] chore: update deps

---
 package.json | 8 ++++----
 1 file changed, 4 insertions(+), 4 deletions(-)

diff --git a/package.json b/package.json
index bfdc489..2492e77 100644
--- a/package.json
+++ b/package.json
@@ -34,15 +34,15 @@
   },
   "homepage": "https://github.com/libp2p/js-peer-id",
   "devDependencies": {
-    "aegir": "^11.0.0",
+    "aegir": "^11.0.1",
     "chai": "^3.5.0",
     "dirty-chai": "^1.2.2",
     "pre-commit": "^1.2.2"
   },
   "dependencies": {
-    "libp2p-crypto": "~0.8.6",
-    "multihashes": "~0.4.4",
-    "async": "^2.1.5"
+    "libp2p-crypto": "~0.8.7",
+    "multihashes": "~0.4.5",
+    "async": "^2.2.0"
   },
   "repository": {
     "type": "git",

From 0acc572fd32583f138c0c3dca638dd1accb7dca9 Mon Sep 17 00:00:00 2001
From: David Dias <daviddias.p@gmail.com>
Date: Mon, 27 Mar 2017 13:23:18 +0100
Subject: [PATCH 2/3] feat: isPeerId

---
 src/index.js       |  6 ++++++
 test/index.spec.js | 10 ++++++++++
 2 files changed, 16 insertions(+)

diff --git a/src/index.js b/src/index.js
index 9cf6fb0..a4876e6 100644
--- a/src/index.js
+++ b/src/index.js
@@ -219,6 +219,12 @@ exports.createFromJSON = function (obj, callback) {
   }
 }
 
+exports.isPeerId = function (peerId) {
+  if (peerId.constructor && peerId.constructor.name) {
+    return peerId.constructor.name === 'PeerId'
+  }
+}
+
 function toB64Opt (val) {
   if (val) {
     return val.toString('base64')
diff --git a/test/index.spec.js b/test/index.spec.js
index 782747c..5cbc952 100644
--- a/test/index.spec.js
+++ b/test/index.spec.js
@@ -32,6 +32,16 @@ describe('PeerId', () => {
     })
   })
 
+  it('isPeerId', (done) => {
+    PeerId.create((err, id) => {
+      expect(err).to.not.exist()
+      expect(PeerId.isPeerId(id)).to.equal(true)
+      expect(PeerId.isPeerId('aaa')).to.equal(false)
+      expect(PeerId.isPeerId(new Buffer('batatas'))).to.equal(false)
+      done()
+    })
+  })
+
   it('throws on changing the id', (done) => {
     PeerId.create((err, id) => {
       expect(err).to.not.exist()

From a3fe1a2f03c3e6d273f84057cd0b640c059be080 Mon Sep 17 00:00:00 2001
From: David Dias <daviddias.p@gmail.com>
Date: Mon, 27 Mar 2017 13:58:21 +0100
Subject: [PATCH 3/3] fix: avoid using constructor.name

---
 package.json | 7 ++++---
 src/index.js | 7 +++----
 2 files changed, 7 insertions(+), 7 deletions(-)

diff --git a/package.json b/package.json
index 2492e77..f7c3ea4 100644
--- a/package.json
+++ b/package.json
@@ -40,9 +40,10 @@
     "pre-commit": "^1.2.2"
   },
   "dependencies": {
+    "async": "^2.2.0",
     "libp2p-crypto": "~0.8.7",
-    "multihashes": "~0.4.5",
-    "async": "^2.2.0"
+    "lodash": "^4.17.4",
+    "multihashes": "~0.4.5"
   },
   "repository": {
     "type": "git",
@@ -59,4 +60,4 @@
     "nginnever <ginneversource@gmail.com>",
     "npmcdn-to-unpkg-bot <npmcdn-to-unpkg-bot@users.noreply.github.com>"
   ]
-}
\ No newline at end of file
+}
diff --git a/src/index.js b/src/index.js
index a4876e6..c1baba8 100644
--- a/src/index.js
+++ b/src/index.js
@@ -91,7 +91,6 @@ class PeerId {
 }
 
 exports = module.exports = PeerId
-exports.Buffer = Buffer
 
 // generation
 exports.create = function (opts, callback) {
@@ -220,9 +219,9 @@ exports.createFromJSON = function (obj, callback) {
 }
 
 exports.isPeerId = function (peerId) {
-  if (peerId.constructor && peerId.constructor.name) {
-    return peerId.constructor.name === 'PeerId'
-  }
+  return Boolean(typeof peerId === 'object' &&
+    peerId._id &&
+    peerId._idB58String)
 }
 
 function toB64Opt (val) {