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Acala EVM+ Hardhat Example: UpgradeableGreeter

This tutorial addresses the use of the upgradeable smart contracts using the transparent proxy pattern.

It contains a simple Greeter smart contract that can be upgraded to Greeter V2, which has a new method setGreetingV2().

Start a Local Development Stack

clean up docker containers

docker compose down -v

start the local development stack

cd ../   # compose file is at root dir
docker compose up

once you see logs like this, the local development stack is ready. It's ok if there are some warnings/errors in the logs, since there is no transaction in the node yet.

 --------------------------------------------
              🚀 SERVER STARTED 🚀
 --------------------------------------------
 version         : bodhi.js/eth-rpc-adapter/2.7.7
 endpoint url    : ws://mandala-node:9944
 subquery url    : http://graphql-engine:3001
 listening to    : 8545
 max blockCache  : 200
 max batchSize   : 50
 max storageSize : 5000
 safe mode       : false
 local mode      : false
 rich mode       : false
 http only       : false
 verbose         : true
 --------------------------------------------

For more information about the local development stack, please refer to the doc.

Run

install deps

yarn

clean up proxy info cache (only required after re-starting the local development stack)

yarn clean

compile contracts and build types

yarn build

deploy the the proxy contract with scripts/deploy.ts

yarn deploy:mandala

upgrade the proxy contract with scripts/upgrade.ts

yarn upgrade:mandala

run tests with test/*.ts

yarn test:mandala

run with public mandala

you can also run these scripts with public mandala by inserting your own account key to hardhat.config.ts, and then

yarn deploy:mandalaPub
yarn upgrade:mandalaPub
yarn test:mandalaPub

More References