XYK AMM + Exchange order matching blockchain built on substrate for Hackusama hackaton

• https://hack.hydradx.io/
• app source
• hack submission

Follow these steps to prepare a local Substrate development environment 🛠️

Install all the required dependencies with a single command (be patient, this can take up to 30 minutes).

curl https://getsubstrate.io -sSf | bash -s -- --fast

Find manual setup instructions at the Substrate Developer Hub.

Once the development environment is set up, build the node. This command will build the Wasm and native code:

cargo build --release

Purge any existing dev chain state:

./target/release/hack-hydra-dx purge-chain --dev

Start a dev chain:

./target/release/hack-hydra-dx --dev

Or, start a dev chain with detailed logging:

RUST_LOG=debug RUST_BACKTRACE=1 ./target/release/hack-hydra-dx -lruntime=debug --dev

Go to the polkadot apps at https://dotapps.io

Then open settings screen -> developer and paste

NOTE - FixedU128 type is not yet implemented for polkadot apps. Balance is a measure so price can be reasonably selected. If using polkadot apps to create pool:

• 1 Mega Units equals 1:1 price
• 20 Mega Units equals 20:1 price
• 50 Kilo Units equals 0.05:1 price

{
  "Amount": "i128",
  "AmountOf": "Amount",
  "Address": "AccountId",
  "BalanceInfo": {
    "amount": "Balance",
    "assetId": "AssetId"
  },
  "CurrencyId": "AssetId",
  "CurrencyIdOf": "AssetId",
  "Intention": {
    "who": "AccountId",
    "asset_sell": "AssetId",
    "asset_buy": "AssetId",
    "amount": "Balance",
    "discount": "bool",
    "sell_or_buy": "IntentionType"
  },
  "IntentionId": "u128",
  "IntentionType": {
    "_enum": [
      "SELL",
      "BUY"
    ]
  },
  "LookupSource": "AccountId",
  "Price": "Balance"
}

Connect to the wss://hack.hydradx.io:9944 or local node.