This is a simple project to demonstrate using OpenGSN
Usage:
yarn install
yarn test
The test brings up a full GSN envorment by calling startGsn(). It deploy the contracts and starts a relay inside your test.
The test then shows how to configure your ethers instance to use GSN.
The tests themselves merely verify that the call was relayed (caller didn't pay..) and that indeed it can see the caller's address (using _msgSender())
You can also start GSN outside the test:
-
start GSN from another window, by calling:
npx gsn start localhost(this requires "hardhat node" to be running on the machine)
-
In the test, remove the
startGSN()in the test. -
Update the test to read the paymaster address :
paymasterAddress = require('./build/gsn/Paymaster').address