Playground check

.github/workflows/playground-check.yaml

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+name: Playground operation check
+
+on:
+  pull_request:
+  schedule:
+    # Run this job once per day
+    - cron: "0 0 * * *"
+
+jobs:
+  playground-check:
+    runs-on: ubuntu-latest
+    env:
+      FORK_URL_MAINNET: ${{ secrets.FORK_URL_MAINNET }}
+    steps:
+      - name: Free Disk Space (Ubuntu)
+        uses: jlumbroso/free-disk-space@main
+        with:
+          tool-cache: false
+          android: true
+          dotnet: true
+          haskell: true
+          large-packages: false
+          docker-images: false
+          swap-storage: false
+
+      - name: Checkout code
+        uses: actions/checkout@v4
+
+      - name: Install dependency
+        run: sudo apt-get -qq update && sudo apt-get -y -q install curl jq
+
+      - name: Install Foundry
+        uses: foundry-rs/foundry-toolchain@v1
+
+      - name: Setup environment
+        run: |
+          cp playground/.env.example playground/.env
+          sed -i -e 's/ETH_RPC_URL=.*/ETH_RPC_URL=$FORK_URL_MAINNET/g' playground/.env
+          cat playground/.env
+
+      - name: Start docker containers
+        run: |
+          cd playground
+          # firstly start explorer container to workaround yarn cache problem 
+          docker compose -f docker-compose.fork.yml up -d explorer
+          docker compose -f docker-compose.fork.yml up -d
+
+      - name: Execute validation script
+        run: |
+          cd playground
+          ./test_playground.sh
+
+      - name: Collect docker logs on failure
+        if: failure()
+        uses: jwalton/gh-docker-logs@v2
+        with:
+          dest: './logs'
+
+      - name: Tar logs
+        if: failure()
+        run: tar cvzf ./logs.tgz ./logs
+
+      - name: Upload logs to GitHub
+        if: failure()
+        uses: actions/upload-artifact@master
+        with:
+          name: logs.tgz
+          path: ./logs.tgz

playground/test_playground.sh

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+#!/bin/bash
+
+# Fail on all errors
+set -e
+# Fail on expand of unset variables
+set -u
+
+# Setup parameters
+HOST=localhost:8080
+WETH_ADDRESS="0xc02aaa39b223fe8d0a0e5c4f27ead9083c756cc2"  # WETH token
+SELL_TOKEN=$WETH_ADDRESS
+BUY_TOKEN="0xa0b86991c6218b36c1d19d4a2e9eb0ce3606eb48"  # USDC token
+SELL_AMOUNT="1000000000000000000"  # 1 ETH
+SLIPPAGE=2  # 2%
+COW_SETTLMENT_CONTRACT="0x9008D19f58AAbD9eD0D60971565AA8510560ab41"
+COW_VAULT_RELAYER_CONTRACT="0xC92E8bdf79f0507f65a392b0ab4667716BFE0110"
+APPDATA='{"version":"1.3.0","metadata":{}}'
+MAXUINT256="115792089237316195423570985008687907853269984665640564039457584007913129639935"
+
+# Following private key is only used for testing purposes in a local environment.
+# For security reasons please do not use it on a production network, most likely 
+# all funds sent to this account will be stolen immediately.
+PRIVATE_KEY="0x2a871d0798f97d79848a013d4936a73bf4cc922c825d33c1cf7073dff6d409c6"
+
+
+# Run test flow
+echo "Using private key:" $PRIVATE_KEY
+receiver=$(cast wallet address $PRIVATE_KEY)
+
+# Calculate AppData hash
+app_data_hash=$(cast keccak $APPDATA)
+
+# Deposit WETH
+echo "Wrapping some ETH"
+docker exec playground-chain-1 cast send --private-key $PRIVATE_KEY --value 3ether $WETH_ADDRESS > /dev/null
+
+echo "Setting WETH allowance"
+docker exec playground-chain-1 cast send --private-key $PRIVATE_KEY $WETH_ADDRESS "approve(address, uint)" $COW_VAULT_RELAYER_CONTRACT $MAXUINT256 > /dev/null
+
+echo "Request price qoute for buying USDC for WETH"
+quote_response=$( curl --retry 5 --retry-all-errors --fail-with-body -s -X 'POST' \
+  "http://$HOST/api/v1/quote" \
+  -H 'accept: application/json' \
+  -H 'Content-Type: application/json' \
+  -d '{
+  "sellToken": "'$SELL_TOKEN'",
+  "buyToken": "'$BUY_TOKEN'",
+  "from": "'$receiver'",
+  "receiver": "'$receiver'",
+  "sellTokenBalance": "erc20",
+  "buyTokenBalance": "erc20",
+  "signingScheme": "eip712",
+  "onchainOrder": false,
+  "partiallyFillable": false,
+  "kind": "sell",
+  "sellAmountBeforeFee": "'$SELL_AMOUNT'"
+}')
+
+buyAmount=$(jq -r --args '.quote.buyAmount' <<< "${quote_response}")
+feeAmount=$(jq -r --args '.quote.feeAmount' <<< "${quote_response}")
+validTo=$(($(date +%s) + 120)) # validity time: now + 2 minutes
+sellAmount=$((SELL_AMOUNT - feeAmount))
+
+# Apply slippage
+buyAmount=$((buyAmount * ( 100 - $SLIPPAGE ) / 100 )) # apply slippage
+
+# Prepare EIP712 message
+eip712_message=$(jq -r --args '
+  .quote|=(.appData="'$app_data_hash'") | 
+  .quote|=(.sellAmount="'$sellAmount'") |
+  .quote|=(.feeAmount="0") |
+  .quote|=(.buyAmount="'$buyAmount'") |
+  .quote|=(.validTo='$validTo') |
+  .quote' <<< "${quote_response}")
+
+# Prepare EIP-712 typed struct
+eip712_typed_struct='{
+  "types": {
+    "EIP712Domain": [
+      { "name": "name", "type": "string" },
+      { "name": "version", "type": "string" },
+      { "name": "chainId", "type": "uint256" },
+      { "name": "verifyingContract", "type": "address" }
+    ],
+    "Order": [
+      { "name": "sellToken", "type": "address" },
+      { "name": "buyToken", "type": "address" },
+      { "name": "receiver", "type": "address" },
+      { "name": "sellAmount", "type": "uint256" },
+      { "name": "buyAmount", "type": "uint256" },
+      { "name": "validTo", "type": "uint32" },
+      { "name": "appData", "type": "bytes32" },
+      { "name": "feeAmount", "type": "uint256" },
+      { "name": "kind", "type": "string" },
+      { "name": "partiallyFillable", "type": "bool" },
+      { "name": "sellTokenBalance", "type": "string" },
+      { "name": "buyTokenBalance", "type": "string" }
+      ]
+    },
+  "primaryType": "Order",
+  "domain": {
+    "name": "Gnosis Protocol",
+    "version": "v2",
+    "chainId": 1,
+    "verifyingContract": "'$COW_SETTLMENT_CONTRACT'"
+    },
+  "message": '$eip712_message'
+}'
+
+# Compact json and escape quotes
+eip712_typed_struct=$(jq -r -c <<< "${eip712_typed_struct}")
+eip712_typed_struct=${eip712_typed_struct//\"/\\\"}
+
+# Sign quote_response with private key
+signature=$(cast wallet sign --private-key $PRIVATE_KEY --data \""$eip712_typed_struct"\")
+echo "Intent signature:" $signature
+
+app_data=${APPDATA//\"/\\\"}   # escape quotes for json field
+
+# Update EIP712 message with additional fields required for order submit
+order_proposal=$(jq -r -c --args '
+  .from="'$receiver'" |
+  .appData|="'$app_data'" |
+  .appDataHash="'$app_data_hash'" |
+  .signature="'$signature'"' <<< "${eip712_message}")
+
+echo "Submit an order"
+orderUid=$( curl --retry 5 --retry-all-errors --fail-with-body -s -X 'POST' \
+  "http://$HOST/api/v1/orders" \
+  -H 'accept: application/json' \
+  -H 'Content-Type: application/json' \
+  -d "${order_proposal}")
+orderUid=${orderUid:1:-1} # remove quotes
+echo "Order UID: $orderUid"
+
+for i in $(seq 1 24);
+do
+  orderStatus=$( curl --retry 5 --retry-all-errors --fail-with-body -s -X 'GET' \
+    "http://$HOST/api/v1/orders/$orderUid/status" \
+    -H 'accept: application/json' | jq -r '.type')
+  echo -e -n "Order status: $orderStatus     \r"
+  if [ "$orderStatus" = "traded" ]; then
+    echo -e "\nSuccess"
+    exit 0
+  fi
+  sleep 5
+done
+
+echo -e "\nTimeout"
+exit 1