Tomomi Imura
41 lines
2.0 KiB
Markdown
41 lines
2.0 KiB
Markdown
# PubNub JavaScript APIs Example: Super Simple Chat Demo
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This is a super simple chat web app, built with using [PubNub JavaScript APIs][pubnub].
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## Live Demo
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Try this [chat room demo][demo] on multiple browser windows.
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## Send and Receive Messages with PubNub APIs
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Tasks like sending and receiving data through PubNub take a single function call. The basic *send* functionality happens through a `publish()` call. And to *receive* all of the sent messages on a specific channel, simply make a `subscribe()` call. All of the network infrastructure and scaling is taken care of for you, so you spend time building your app, not the infrastructure.
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```
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// Send a message
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PUBNUB.publish({ channel: 'chat', message: "hello!" });
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```
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```
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// Receive messages
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PUBNUB.subscribe({ channel: 'chat', callback: function(m){console.log(m)}});
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```
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Super easy!
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## Debugging using PubNub Console
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Go to [Console][console], and enter your channel name (for this example demo, *mchat*), and your subscribe/publish keys to see if your code is sending and receiving data to/from PubNub service correctly!
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## OK, So What is PubNub?
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PubNub is a globally distributed *data stream* network, a cloud service that developers use to build and scale real-time applications. We connect to over 250 million devices with billions of monthly real-time transactions for financial services, social apps, online auctions, multi-player games, telecom infrastructure, retail apps etc. PubNub also enables many Internet of Things (IoT) solutions for home automation, connected cars, retail, transportation and many others.
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Are you looking for the SDKs in different languages? visit our [developers page]!
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PubNub creates and supports over 50 languages and development platforms with our SDKs, inluding node.js, ruby, python, Objective-C, etc, etc!
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Happy hacking :-)
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[Demo]: http://pubnub.github.io/super-simple-chat/index.html
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[pubnub]: http://www.pubnub.com/docs/javascript/javascript-sdk.html
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[dev]: http://www.pubnub.com/developers/
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[console]: http://www.pubnub.com/console/ |