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socket.io example
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| <html> | |
| <body> | |
| <script src="socket.io.js"></script> | |
| <script> | |
| eventToListenTo = 'tx' | |
| room = 'inv' | |
| packages = 0; | |
| var socket = io("http://localhost:8000/"); | |
| socket.on('connect', function() { | |
| console.log('connected!!!'); | |
| // Join the room. | |
| socket.emit('subscribe', room); | |
| }) | |
| socket.on(eventToListenTo, function(data) { | |
| console.log(data); | |
| if (packages > 10) { | |
| console.log('unsubscribed!!!'); | |
| socket.emit('unsubscribe', room); | |
| } else { | |
| packages++; | |
| } | |
| }) | |
| </script> | |
| </body> | |
| </html> |
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| const | |
| port = 8000, | |
| io = require("socket.io"), | |
| server = io.listen(port), | |
| dummy = { | |
| txid: "e3564341b77fe099b1d123bece39057e1cc4cf446376612dc6eaab6957b3f180", | |
| valueOut: 123.0, | |
| vout: [ | |
| {XhayrpwPfELBNjErrBmHe6qpsaiwFSWzyX: 12682308} | |
| ], | |
| isRBF: false, | |
| txlock: false | |
| }; | |
| // event fired every time a new client connects: | |
| server.on("connection", (socket) => { | |
| console.info(`Client connected [id=${socket.id}]`); | |
| socket.on("disconnect", () => { | |
| console.info(`Client gone [id=${socket.id}]`); | |
| }); | |
| socket.on("subscribe", (data) => { | |
| if (data === "inv") { | |
| socket.join("inv", () => { | |
| console.info("Subscribed"); | |
| }); | |
| } | |
| }); | |
| socket.on("unsubscribe", (data) => { | |
| if (data === "inv") { | |
| socket.leave("inv", () => { | |
| console.info("Unsubscribed"); | |
| }); | |
| } | |
| }); | |
| }); | |
| // sends each client its current sequence number | |
| setInterval(() => { | |
| console.log('.'); | |
| server.to('inv').emit('tx', dummy); | |
| }, 5000); | |
| console.log(`App started on port ${port}`); |
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| // get data for each confirmed transaction | |
| $.client.addHeadChangedListener(async (hash, reason) => { | |
| const block = await $.client.getBlock(hash); | |
| const transactions = block.body.transactions; | |
| for (const transaction of transactions) { | |
| const data = { | |
| txid: transaction.hash().toPlain(), | |
| value: transaction.value, | |
| sender: transaction.recipient.toUserFriendlyAddress() | |
| }; | |
| console.log("!!!", data); | |
| } | |
| }); |
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