You can build and invoke Ethereum nodes through the Infura load-balanced nodes by calling the Ethereum API. Just write a regular JSON RPC over both HTTPS and WebSockets code; you can use popular Ethereum client libraries and frameworks to access node information.
When an API needs to support the Pub/Sub feature, a WebSockets endpoint is the better choice; it also provides JSON-RPC filter support, for example, eth_newFilter, which creates a filter in the node to notify us when a new block arrives, and more.
Let's create a simple Infura DApp to get account and node information from the Görli testnet; we will use web3.js for this. In our Infura DApp, we will use the newer Görli test network. Ropsten is not ...
