Overview

This script is to be used in the geth console to get the information in a blockchain

Usage

1. Open geth console connecting to your node rpc/ipc address. For example, if the default geth node port is 8545, type geth attch http://localhost:8545 to connect to the node and open geth console
2. In geth console, type loadScript('path_of_this_script') to load this script. It will return true if the script is loaded successfully
3. As defined in the script, run init() for intitialization and then run getInfo() to get the blockchain information. Everytime the blockchain is updated, run getInfo() again to retrieve the lastest data.

Data that can be retrieved:

1. blocks: an array containing info of all current blocks
2. gasUsed: total gas used by now
3. tnxHashes: an array containing all transaction hashes
4. totalDifficulties: an array of the mining difficulty of each block
5. emptyBlockNum: the number of empty blocks (blocks with no transactions)
6. blockMiningTime: the time between each block is mined in seconds
7. tnxReceipts: an array of all transaction info (The from and to addresses will be undefined if the transaction is not a standard sendTransaction)