util-shard-from-address

util-shard-from-address

This example shows how to return the name of a shard from the byte prefix of an address.

Dependencies

• Node.js - JavaScript runtime
• quais - Quai JavaScript SDK

Usage

To install dependencies, navigate to this directory (quais-by-example/util-shard-from-address) and run:

npm install

Use nodejs to run the example script:

node index.js

Example Breakdown

The index.js script takes in a single address and returns the shard name of that address. To run the script, you'll need to edit the address variable:

const address = '0x12d93219393DD6365552e5c8F3ea011C8c1F2edB' // cyprus 1 address

The possible return options are zone-0-0, zone-0-1, zone-0-2, zone-1-0, zone-1-1, zone-1-2, zone-2-0, zone-2-1, zone-2-2.

Once you've provided an address, you can run the script with:

node index.js

The script will output the shard that the address corresponds to.