The Hifi protocol emits events on the Ethereum blockchain, but querying these events is not quick and easy by default. That is where The Graph comes into play: it indexes the events Hifi emits on Ethereum and serves them via a high-throughput GraphQL server. The server is called a "subgraph".
Hifi is deployed on five Ethereum networks, as documented in the previous section Network Addresses. We are running a subgraph for each network:
You may be interested in the seeing the schemas and some example GraphQL queries. Look up our subgraph repository: