• Mainnet: 0xB6610B13496f42fa72BBa6a0ca20e5b72a11CE39
• xDai: 0x756ce48FbF69338027040A11DC2d510Ef03dd3f7
• Polygon: 0x09761ffd493B7d15FdA56A270d93aE60954404d8
• Rinkeby: 0xDb2E7973D8e4d3ed5052f06d43462C41aEE6DF76
• Goerli: 0x5576f07713D3aBEd1677Ad50AF90a461364FA42d

In the interface/ subdirectory:

• Run npm install
• Run npm run serve

Now, the dapp interface is served at http://localhost:8080/.

The contracts are in the contracts/ subdirectory. Run npm install to install the dependencies. To deploy the contracts, first create a .env file containing your Infura project ID as well as the private keys used for deployment as illustrated in .env.example. Then, run npx hardhat deploy --network <network>. Available networks are configured in hardhat.config.js. The resulting contract addresses should be recorded in interface/src/chains.js as well as subgraphs/subgraphs.json. When the contract interface is changed, the ABI should be copied to interface/src/assets/ and subgraphs/abis/.

The subgraph definitions are stitched together based on templates to simplify deployment on many chains. The base files are

• subgraphs/subgraphs.json
• subgraphs/schema.graphql
• subgraphs/src/mapping.ts
• everything in subgraphs/templates

To build and deploy everything on all chains, run make deploy.