Web3 subscription APIs and watching birth of CryptoKitty

Web3 provides some very useful APIs by which you can subscribe to the events on Ethereum blockchain. Web3 is a JavaScript library which interact with Ethereum node over RPC. Let's walk through a couple of subscription APIs. Watching Events Web3 can be used on browser as well as server side. This example is going to use Nodejs on server side. Also, I've used Ubuntu to do this example but it should be valid for Windows...

Introducing web3 commands to browser

This is an effort to make Ethereum Web3 commands easily available to community of developers and users, I am pleased to release an awesome tool on https://blockaction.io. This is a small write up to introduce this tool. This is pure client side tool which rely on Infura for data , it can also be connected to local RPC web3 provider. Using this tool, you can execute all the Ethereum web3 commands from browse. In...

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