This is the most basic example showcasing config.json and secrets.env (which is automatically generated for you with
one of our scripts).
The config.json defines a single callable endpoint, called coinMarketData which you can call to determine the
current price of some crypto currency. The example request uses this endpoint to retrieve the current price of Ethereum.
There is one thing to notice. The config.json defines the _times reserved parameter, which makes the Airnode
multiply the asset price returned from the API. This is necessary to preserve the floating point digits in the requester
contract, since solidity only allows to use integers.
For more information about how the Airnode is configured refer to the docs.