monorepo

Installation

Clone

Make sure you clone submodules together.

git clone --recurse-submodules

If you already pulled using just git clone, you can use below command to update submodules.

git submodule update --init --recursive

Dependencies

• Node 16.x
• Yarn (preinstalled with Node 16)
• Foundry

From fresh clone:

• yarn
• yarn workspace @midas-capital/sdk forge install
• yarn workspace @midas-capital/sdk build

Tips

Run everything from the top level.

Ask for .env file from the team and add it under packages/sdk

If you want to add packages to modules, you can do so like:

• yarn workspace @midas-capital/sdk add ethers

To run forge commands inside the sdk package, run:

• yarn workspace @midas-capital/sdk forge install <SOME_DEP>
• yarn workspace @midas-capital/sdk forge build
• etc

Adding a Package

• Copy source into packages/my-new-package.
• Add reference to root tsconfig.json:

{
  ...
  "references": [
    ...
    {
      "path": "./packages/my-new-package"
    }
  ]
}

• Add workspace-level dependencies to package.json inside the package:

{
  ...
  "dependencies": {
    ...
    "@midas-capital/some-other-package": "workspace:*"
  }
}
- `yarn` from top-level to update dependencies/symlinks.

Working with Forks

Forking requires access to a archive RPC node. For BSC we had a great experience using an RPC Node from NodeReals MegaNode service - https://nodereal.io/meganode .

For forking Polygon we haven't found a free service to use an archive node yet.

You general purpose forking you have to set FORK_RPC_URL and FORK_CHAIN_ID in your packages/sdk/.env file.

And than start a forked local node by running.

> yarn dev:node:fork

In order to start multiple forks at once we streamlined the process a bit. In your executing shell make sure to set BSC_RPC_URL and or POLYGON_RPC_URL.

> yarn dev:node:bsc
// Will start a CHAIN_ID=56 fork using $BSC_RPC_URL at https://localhost:8545

> yarn dev:node:polygon
// Will start a CHAIN_ID=137 fork using $POLYGON_RPC_URL at https://localhost:8546

The idea is to increase the port number with each fork we want to support.

8545: BSC
8546: Polygon
8547: Moonbeam?

For convenience we have a Hardhat task to make some token swaps to on the forked node for you.

> yarn workspace @midas-capital/sdk hardhat fork:fund-accounts --network fork
// Works with https://localhost:8545

> yarn workspace @midas-capital/sdk hardhat fork:fund-accounts --network localbsc
// Works with https://localhost:8545

> yarn workspace @midas-capital/sdk hardhat fork:fund-accounts --network localpolygon
// Works with https://localhost:8546

Running UI Tests

We are using ChainSafe/dappeteer to test our UI with Metamask. The test are expecting to work on a fork of BSC mainnet for now.

Follow this step to run the UI test locally

1. Start local forked BSC node

> yarn dev:node:fork

2. Start local UI dev server

> yarn dev:ui

3. Fund test accounts

> yarn workspace @midas-capital/sdk hardhat fork:fund-accounts --network fork

4. Run dAppateer

> yarn test:ui

UI Test With WSL2

If you are on windows you need an X-server to run dappeteer. These instructions were taken from here: https://www.rickmakes.com/windows-subsystem-for-linux-2-installing-vcxrv-x-server/

Follow these steps before running yarn test:ui

1. Download VcXsrv, this is your X-server that will display the GUI https://sourceforge.net/projects/vcxsrv/
2. Run VcXsrv. Use these settings

Multiple Windows -> Start No Client -> Check All Boxes in Extra Settings -> Finish

If Windows Defender Firewall prompts you, check both Private & Public Networks and Allow Access

3. Find your Windows IP Address by running the following command

cat /etc/resolv.conf

4. Set DISPLAY Variable (replace ip_address with your IP Address found above)

export DISPLAY=ip_address:0.0

5. export opengl Variable

export LIBGL_ALWAYS_INDIRECT=1