gas-estimation

Gas estimation tutorial

gas-estimation is a simple demo of how a developer can estimate transaction fees on Arbitrum.

It uses the formula described in this Medium article to estimate the fees to be paid on a transaction, also estimating each component of the formula sepparately: Understanding Arbitrum: 2-Dimensional Fees. For more information, you can also see How to estimate gas in the Arbitrum documentation portal.

See ./exec.ts for inline explanations.

Set environment variables

Set the values shown in .env-sample as environmental variables. To copy it into a .env file:

cp .env-sample .env

You'll still need to edit some variables, i.e., CHAIN_RPC.

Note that you can also set the environment variables in an .env file in the root of the monorepo, which will be available in all tutorials.

Run

Inside the script, you can edit the txData constant to suit your needs.

To run:

yarn run exec