Support multiple protocol id for relay

Support id of latest nim-waku release 0.4 and current master.

CHANGELOG.md

@@ -13,12 +13,15 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
 - Examples (web-chat): New `/fleet` command to switch connection between Status prod and test fleets.
 - Export `generatePrivateKey` and `getPublicKey` directly from the root.
 - Usage of the encryption and signature APIs to the readme.
+- Support multiple protocol ids for Waku Relay, allowing interoperability with nim-waku v0.4 and latest master
+  ([#238](https://github.com/status-im/js-waku/issues/238)).
 
 ### Changed
 - **Breaking**: Renamed `WakuRelay.(add|delete)PrivateDecryptionKey` to `WakuRelay.(add|delete)DecryptionKey` to make it clearer that it accepts both symmetric keys and asymmetric private keys.
 
 ### Fix
 - Align `WakuMessage` readme example with actual code behaviour.
+- Remove infinite loop when an error with Waku Store is encountered.
 
 ## [0.8.0] - 2021-07-15
 

src/index.ts

@@ -16,7 +16,7 @@ export {
   PushResponse,
 } from './lib/waku_light_push';
 
-export { WakuRelay, RelayCodec } from './lib/waku_relay';
+export { WakuRelay, RelayCodecs } from './lib/waku_relay';
 
 export { Direction, WakuStore, StoreCodec } from './lib/waku_store';
 

src/lib/waku.spec.ts

@@ -6,7 +6,6 @@ import TCP from 'libp2p-tcp';
 import { makeLogFileName, NimWaku, NOISE_KEY_1 } from '../test_utils/';
 
 import { Waku } from './waku';
-import { RelayCodec } from './waku_relay';
 
 describe('Waku Dial', function () {
   describe('Interop: Nim', function () {
@@ -30,7 +29,7 @@ describe('Waku Dial', function () {
       expect(nimPeers).to.deep.equal([
         {
           multiaddr: multiAddrWithId,
-          protocol: RelayCodec,
+          protocol: '/vac/waku/relay/2.0.0-beta2',
           connected: true,
         },
       ]);

src/lib/waku.ts

@@ -16,7 +16,7 @@ import { Multiaddr, multiaddr } from 'multiaddr';
 import PeerId from 'peer-id';
 
 import { WakuLightPush } from './waku_light_push';
-import { RelayCodec, WakuRelay } from './waku_relay';
+import { RelayCodecs, WakuRelay } from './waku_relay';
 import { StoreCodec, WakuStore } from './waku_store';
 
 const websocketsTransportKey = Websockets.prototype[Symbol.toStringTag];
@@ -170,7 +170,7 @@ export class Waku {
     stream: MuxedStream;
     protocol: string;
   }> {
-    return this.libp2p.dialProtocol(peer, [RelayCodec, StoreCodec]);
+    return this.libp2p.dialProtocol(peer, [StoreCodec].concat(RelayCodecs));
   }
 
   /**

src/lib/waku_relay/constants.ts

@@ -4,7 +4,10 @@ export const minute = 60 * second;
 /**
  * RelayCodec is the libp2p identifier for the waku relay protocol
  */
-export const RelayCodec = '/vac/waku/relay/2.0.0-beta2';
+export const RelayCodecs = [
+  '/vac/waku/relay/2.0.0-beta2',
+  '/vac/waku/relay/2.0.0',
+];
 
 /**
  * DefaultPubsubTopic is the default gossipsub topic to use for Waku.

src/lib/waku_relay/get_relay_peers.ts

@@ -1,7 +1,7 @@
 import Gossipsub from 'libp2p-gossipsub';
 import { shuffle } from 'libp2p-gossipsub/src/utils';
 
-import { RelayCodec } from './index';
+import { RelayCodecs } from './index';
 
 /**
  * Given a topic, returns up to count peers subscribed to that topic
@@ -33,7 +33,7 @@ export function getRelayPeers(
     if (!peerStreams) {
       return;
     }
-    if (peerStreams.protocol == RelayCodec && filter(id)) {
+    if (RelayCodecs.includes(peerStreams.protocol) && filter(id)) {
       peers.push(id);
     }
   });

src/lib/waku_relay/index.spec.ts

@@ -14,7 +14,7 @@ import { delay } from '../delay';
 import { Waku } from '../waku';
 import { WakuMessage } from '../waku_message';
 
-import { DefaultPubsubTopic, RelayCodec } from './index';
+import { DefaultPubsubTopic } from './index';
 
 const log = debug('waku:test');
 
@@ -72,7 +72,7 @@ describe('Waku Relay', () => {
     it('Register correct protocols', async function () {
       const protocols = Array.from(waku1.libp2p.upgrader.protocols.keys());
 
-      expect(protocols).to.contain(RelayCodec);
+      expect(protocols).to.contain('/vac/waku/relay/2.0.0-beta2');
       expect(protocols.findIndex((value) => value.match(/sub/))).to.eq(-1);
     });
 

src/lib/waku_relay/index.ts

@@ -21,13 +21,13 @@ import { CreateOptions } from '../waku';
 import { WakuMessage } from '../waku_message';
 
 import * as constants from './constants';
-import { DefaultPubsubTopic, RelayCodec } from './constants';
+import { DefaultPubsubTopic, RelayCodecs } from './constants';
 import { getRelayPeers } from './get_relay_peers';
 import { RelayHeartbeat } from './relay_heartbeat';
 
 const dbg = debug('waku:relay');
 
-export { RelayCodec, DefaultPubsubTopic };
+export { RelayCodecs, DefaultPubsubTopic };
 
 /**
  * See constructor libp2p-gossipsub [API](https://github.com/ChainSafe/js-libp2p-gossipsub#api).
@@ -93,7 +93,7 @@ export class WakuRelay extends Gossipsub {
     this.observers = {};
     this.decryptionKeys = new Set();
 
-    const multicodecs = [constants.RelayCodec];
+    const multicodecs = constants.RelayCodecs;
 
     Object.assign(this, { multicodecs });
 
@@ -420,7 +420,7 @@ export class WakuRelay extends Gossipsub {
       if (
         !exclude.has(id) &&
         !this.direct.has(id) &&
-        peerStreams.protocol == constants.RelayCodec &&
+        constants.RelayCodecs.includes(peerStreams.protocol) &&
         this.score.score(id) >= this._options.scoreThresholds.gossipThreshold
       ) {
         peersToGossip.push(id);