getBlock-etherScan.js

A Node.js script retrieves the starting and ending Ethereum block numbers for a given UTC date by querying the Etherscan API endpoint getblocknobytime.

Features

• Fetch the first block at or after 00:00:00 UTC of a specified date
• Fetch the last block at or before 23:59:59 UTC of a specified date
• Uses axios for HTTP requests and moment for date handling

Prerequisites

• Node.js v12 or higher
• An Etherscan API key (free to register at https://etherscan.io/apis)

Installation

1. Clone or download this repository.
2. Install dependencies:

   npm install
   

Usage

Run the script with three arguments: the start date, end date in YYYY-MM-DD format and your Etherscan API key.

node script/getBlock-etherScan.js