mirror of https://github.com/waku-org/nwaku.git
79 lines
2.3 KiB
JavaScript
79 lines
2.3 KiB
JavaScript
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var express = require('express');
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var app = express();
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function create_random_string(length) {
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let result = '';
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const characters = 'ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789';
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const charactersLength = characters.length;
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let counter = 0;
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while (counter < length) {
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result += characters.charAt(Math.floor(Math.random() * charactersLength));
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counter += 1;
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}
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return result;
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}
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var wakuMod = require('bindings')('waku');
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var cfg = `{
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"host": "0.0.0.0",
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"port": 60001,
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"key": "364d111d729a6eb6d3e6113e163f017b5ef03a6f94c9b5b7bb1bb36fa5cb07a9",
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"relay": true
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"logLevel": "DEBUG"
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}`
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function event_handler(event) {
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console.log("evento NodeJs: " + event)
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}
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wakuMod.wakuNew(cfg)
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wakuMod.wakuVersion(function(msg){ console.log("Waku Version: " + msg) })
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// Example on how to retrieve a value from the waku library
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var defaultPubsubTopic = ""
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wakuMod.wakuDefaultPubsubTopic(function(msg){ defaultPubsubTopic = msg })
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console.log("Default pubsub topic: " + defaultPubsubTopic)
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console.log("Setting callback event callback function")
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wakuMod.wakuSetEventCallback(event_handler)
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wakuMod.wakuStart()
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wakuMod.wakuConnect("/ip4/127.0.0.1/tcp/60000/p2p/16Uiu2HAmVFXtAfSj4EiR7mL2KvL4EE2wztuQgUSBoj2Jx2KeXFLN",
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10000,
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function onErr(msg) {
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console.log("Error connecting node: " + msg)
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})
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wakuMod.wakuRelaySubscribe(defaultPubsubTopic,
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function onErr(msg) {
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console.log("Error subscribing: " + msg)
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})
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app.post('/publish',
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function (req, res) {
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// First read existing users.
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console.log("Publish event received")
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wakuMod.wakuRelayPublish(defaultPubsubTopic,
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"content_topic_name",
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create_random_string(10),
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10000,
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function onError(msg) {
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console.log("Error: " + msg)
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process.exit(-1)
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});
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res.end( JSON.stringify("OK publish"))
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})
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var server = app.listen(8081, function () {
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var host = server.address().address
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var port = server.address().port
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console.log("Example waku listening at http://%s:%s", host, port)
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})
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