This repo provides a script for demonstrating how Gnosis Safe can place gasless orders on CowSwap. This is not intended to be fully featured, but instead just to demonstrate how off-chain orders can be placed for a Gnosis Safe.

• Gnosis Safe v1.3 or later with the CompatibilityFallbackHandler installed (this is the default fallback handler).
• Deno

deno run src/index.js \
  --node https://mainnet.infura.io/v3/$INFURA_PROJECT_ID \
  --buy-token 0xDEf1CA1fb7FBcDC777520aa7f396b4E015F497aB \
  --sell-token 0xC02aaA39b223FE8D0A0e5C4F27eAD9083C756Cc2 \
  --sell-amount 1000000000000000000 \
  --safe $SAFE_ADDRESS \
  --owner $OWNER_0_PK \
  --owner $OWNER_1_PK

You can optionally created bundled executables (instead of invoking Deno).

make # build a bundled executable
make xcompile # cross-compile bundled executables

This allows you to run the script with target/safe-cow-order ....