Created
October 15, 2020 17:54
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NATS.js websockets
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| <!doctype html> | |
| <html> | |
| <head> | |
| <meta charset="utf-8"> | |
| </head> | |
| <body> | |
| <script type="module"> | |
| import { connect, StringCodec } from "/nats.mjs"; | |
| document.addEventListener("DOMContentLoaded", function() { | |
| console.log("Connecting to NATS..."); | |
| let intv = null; | |
| let nc = null; | |
| const opts = { | |
| servers: "wss://connect.ngs.synadia-test.com:443", | |
| ws: false | |
| }; | |
| connect(opts).then(function(c) { | |
| nc = c; | |
| console.log("connect ok!"); | |
| const sc = StringCodec(); | |
| intv = window.setInterval(function() { | |
| console.log("publish triggered!"); | |
| nc.publish("foo", sc.encode("Hello, NATS WebSockets!")); | |
| }, 3000); | |
| const sub = nc.subscribe("bar"); | |
| (async () => { | |
| for await (const m of sub) { | |
| console.log(`RECV: ${sc.decode(m.data)}`); | |
| } | |
| })(); | |
| }).catch(function(err) { | |
| console.log("connect failed"); | |
| console.log(err); | |
| if (intv) { | |
| window.clearInterval(intv); | |
| } | |
| if (nc) { | |
| nc.close(); | |
| } | |
| }); | |
| }); | |
| </script> | |
| </body> | |
| </html> |
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