ravinalamada / ethereum-transaction

Ethereum transaction is a single page application that displays all ethereum transactions depending on the given block and the address.

Transaction app

How to launch this application?

Run the commands below:

• yarn install

• yarn start

• Place .env in the root folder with Etherscan API key

  Please check .env-example

This application should be available on localhost:1234

How does this application work?

Application has two sections:

Transaction crawler

This section is using the Etherscan.io API only

All transactions for the given address and with specific start block are displayed here after clicking the Get transaction button. Etherscan has limit of 10,000 requestable transactions, to deal with that, I use pagination, so the app is displaying max 1000 transaction per page.

Balance checker

This section is using the Web3 library only

It requires an Ethereum-enabled browser, for example Chrome with MetaMask Wallet installed and set up https://metamask.io/

It can find balance at a given address for Eth at a given time.

Optionally, ERC20 Token contract address can be provided to find its balance.

Please note that there is no address format validation