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js-waku-examples
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add protobuf, change topic 

Signed-off-by: weboko <anon@mail.com>
This commit is contained in:
weboko 2022-12-08 21:33:06 +01:00 committed by weboko
parent 0227dfe592
commit 4fddc02896
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2 changed files with 29 additions and 13 deletions
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3
light-chat/index.html
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@ -8,7 +8,7 @@
<body>
<h2>Status</h2>
<div id='status'></div>
<div id='status'>Connecting... | Connected | Disconnected</div>
<h2>Local Peer Id</h2>
<div id='peer-id'></div>
@ -30,6 +30,7 @@
<button>Exit chat</button>
</div>
<script src="//cdn.jsdelivr.net/npm/protobufjs@7.X.X/dist/protobuf.min.js"></script>
<script type='module' src="./index.js"></script>
</body>
</html>

39
light-chat/index.js
View File

@ -1,18 +1,18 @@
import * as utils from 'https://unpkg.com/@waku/byte-utils@0.0.2/bundle/index.js';
import * as wakuCreate from 'https://unpkg.com/@waku/create@0.0.4/bundle/index.js'
import { waitForRemotePeer } from 'https://unpkg.com/@waku/core@0.0.6/bundle/lib/wait_for_remote_peer.js'
import * as wakuMessage from 'https://unpkg.com/@waku/core@0.0.6/bundle/lib/waku_message/version_0.js'
import * as utils from "https://unpkg.com/@waku/byte-utils@0.0.2/bundle/index.js";
import * as wakuCreate from "https://unpkg.com/@waku/create@0.0.4/bundle/index.js";
import { waitForRemotePeer } from "https://unpkg.com/@waku/core@0.0.6/bundle/lib/wait_for_remote_peer.js";
import * as wakuMessage from "https://unpkg.com/@waku/core@0.0.6/bundle/lib/waku_message/version_0.js";
const MULTI_ADDR = "/dns4/node-01.ac-cn-hongkong-c.wakuv2.test.statusim.net/tcp/443/wss/p2p/16Uiu2HAkvWiyFsgRhuJEb9JfjYxEkoHLgnUQmr1N5mKWnYjxYRVm";
const CONTENT_TOPIC = "/js-waku-examples/1/chat/utf8";
const CONTENT_TOPIC = "/toy-chat/2/huilong/proto";
const PROTOCOLS = ["filter", "lightpush"];
const { sendMessage, unsubscribeFromMessages } = await initializeWakuContext({
multiAddr: MULTI_ADDR,
protocols: PROTOCOLS,
multiAddr: MULTI_ADDR,
contentTopic: CONTENT_TOPIC,
onMessageReceived: (message) => {
console.log(message);
onMessageReceived: ({ nick, timestamp, text }) => {
console.log(timestamp, '\t', nick, ": ", text);
},
});
@ -25,6 +25,11 @@ async function initializeWakuContext({
const Decoder = new wakuMessage.DecoderV0(contentTopic);
const Encoder = new wakuMessage.EncoderV0(contentTopic);
const ChatMessage = new protobuf.Type("ChatMessage")
.add(new protobuf.Field("timestamp", 1, "uint64"))
.add(new protobuf.Field("nick", 2, "string"))
.add(new protobuf.Field("text", 3, "bytes"));
const node = await wakuCreate.createLightNode();
await node.start();
@ -32,16 +37,26 @@ async function initializeWakuContext({
await node.dial(multiAddr, protocols);
await waitForRemotePeer(node, protocols);
// Set a filter by using Decoder for a given ContentTopic
const unsubscribeFromMessages = await node.filter.subscribe([Decoder], (wakuMessage) => {
const messageText = utils.bytesToUtf8(wakuMessage.payload);
onMessageReceived(messageText);
const messageObj = ChatMessage.decode(wakuMessage.payload);
onMessageReceived({
...messageObj,
text: utils.bytesToUtf8(messageObj.text),
});
});
return {
unsubscribeFromMessages,
sendMessage: async (value) => {
sendMessage: async ({ text, nick }) => {
const protoMessage = ChatMessage.create({
nick,
timestamp: Date.now(),
text: utils.utf8ToBytes(text),
});
await node.lightPush.push(Encoder, {
payload: utils.utf8ToBytes(value)
payload: ChatMessage.encode(protoMessage).finish(),
});
}
};