refactor: return peer IDs as strings not CIDs (#2729)

Also updates all examples to use the new API.

Depends on:

- [x] ipfs-inactive/interface-js-ipfs-core#581
- [x] ipfs-inactive/js-ipfs-http-client#1226
- [x] libp2p/js-libp2p#545

BREAKING CHANGE:

Where `PeerID`s were previously [CID](https://www.npmjs.com/package/cids)s, now they are Strings

- `ipfs.bitswap.stat().peers[n]` is now a String (was a CID)
- `ipfs.dht.findPeer().id` is now a String (was a CID)
- `ipfs.dht.findProvs()[n].id` is now a String (was a CID)
- `ipfs.dht.provide()[n].id` is now a String (was a CID)
- `ipfs.dht.put()[n].id` is now a String (was a CID)
- `ipfs.dht.query()[n].id` is now a String (was a CID)
- `ipfs.id().id` is now a String (was a CID)
- `ipfs.id().addresses[n]` are now [Multiaddr](https://www.npmjs.com/package/multiaddr)s (were Strings)

Author: achingbrain

index.js

@@ -1,14 +1,13 @@
 'use strict'
 
 const Libp2p = require('libp2p')
-const IPFS = require('ipfs')
+const IPFS = require('../../')
 const TCP = require('libp2p-tcp')
 const MulticastDNS = require('libp2p-mdns')
-const WebSocketStar = require('libp2p-websocket-star')
 const Bootstrap = require('libp2p-bootstrap')
 const SPDY = require('libp2p-spdy')
 const KadDHT = require('libp2p-kad-dht')
-const MPLEX = require('pull-mplex')
+const MPLEX = require('libp2p-mplex')
 const SECIO = require('libp2p-secio')
 
 /**
@@ -32,11 +31,6 @@ const libp2pBundle = (opts) => {
   const peerBook = opts.peerBook
   const bootstrapList = opts.config.Bootstrap
 
-  // Create our WebSocketStar transport and give it our PeerId, straight from the ipfs node
-  const wsstar = new WebSocketStar({
-    id: peerInfo.id
-  })
-
   // Build and return our libp2p node
   return new Libp2p({
     peerInfo,
@@ -49,8 +43,7 @@ const libp2pBundle = (opts) => {
     },
     modules: {
       transport: [
-        TCP,
-        wsstar
+        TCP
       ],
       streamMuxer: [
         MPLEX,
@@ -61,8 +54,7 @@ const libp2pBundle = (opts) => {
       ],
       peerDiscovery: [
         MulticastDNS,
-        Bootstrap,
-        wsstar.discovery
+        Bootstrap
       ],
       dht: KadDHT
     },

package.json

@@ -9,18 +9,16 @@
   },
   "license": "MIT",
   "dependencies": {
-    "ipfs": "file:../../",
-    "libp2p": "^0.26.2",
-    "libp2p-bootstrap": "~0.9.7",
-    "libp2p-kad-dht": "~0.16.0",
-    "libp2p-mdns": "~0.12.2",
-    "libp2p-secio": "~0.11.1",
-    "libp2p-spdy": "~0.13.3",
-    "libp2p-tcp": "~0.13.0",
-    "libp2p-websocket-star": "~0.10.2",
-    "pull-mplex": "~0.1.0"
+    "libp2p": "^0.27.0-rc.0",
+    "libp2p-bootstrap": "^0.10.3",
+    "libp2p-kad-dht": "^0.18.3",
+    "libp2p-mdns": "^0.13.1",
+    "libp2p-mplex": "^0.9.3",
+    "libp2p-secio": "^0.12.2",
+    "libp2p-spdy": "^0.13.3",
+    "libp2p-tcp": "^0.14.3"
   },
   "devDependencies": {
-    "execa": "^3.2.0"
+    "execa": "^4.0.0"
   }
 }

test.js

@@ -5,13 +5,11 @@ const execa = require('execa')
 const Libp2p = require('libp2p')
 const TCP = require('libp2p-tcp')
 const SPDY = require('libp2p-spdy')
-const MPLEX = require('pull-mplex')
+const MPLEX = require('libp2p-mplex')
 const SECIO = require('libp2p-secio')
 const PeerInfo = require('peer-info')
 const PeerId = require('peer-id')
 const multiaddr = require('multiaddr')
-const promisify = require('promisify-es6')
-const PeerBook = require('peer-book')
 
 async function test () {
   let output = ''
@@ -31,12 +29,11 @@ async function test () {
 
       console.info('Dialling', address)
 
-      const peerInfo = new PeerInfo(await promisify(PeerId.create)())
+      const peerInfo = new PeerInfo(await PeerId.create())
       peerInfo.multiaddrs.add(multiaddr('/ip4/127.0.0.1/tcp/0'))
 
       const libp2p = new Libp2p({
         peerInfo,
-        peerBook: new PeerBook(),
         modules: {
           transport: [
             TCP