Any dAPP needs to get historical blockchain data, so RayGraph is ready to let you deploy graphql-based APIs to access historical data and websockets to directly access node ledger state. It uses automated scalable deploys to Cloudflare infrastructure.
Top up your account ADA address and a server with the latest version of cardano-graphql and ogmios will be deployed to handle gql queries and websockets. Just use CardanoWeb3.js on top of this to populate your dApp!
GraphQL is a query language for APIs and a runtime for fulfilling those queries with your existing data. GraphQL provides a complete and understandable description of the data in your API, gives clients the power to ask for exactly what they need and nothing more, makes it easier to evolve APIs over time, and enables powerful developer tools.