This example introduces the use of Acala EVM+ predeployed DEX that is present on every network at a
fixed address (the address of a predeployed contract is the same on a local development network,
public test network as well as the production network). As this example focuses on showcasing the
interactions with the predeployed DEX, it doesn't have its own smart conract. We will get all of
the required imports from the @acala-network/contracts
dependency. The precompiles and predeploys are a specific feature of the Acala EVM+, so this
tutorial is no longer compatible with traditional EVM development networks (like Ganache) or with
the Hardhat's built in network emulator.
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.
install deps
yarn
go thorugh the user journey with scripts/journey.ts
yarn journey:mandala
run tests with test/*.ts
yarn test:mandala
you can also run these scripts with public mandala by inserting your own account key to hardhat.config.ts, and then
yarn journey:mandalaPub
yarn test:mandalaPub