I am using the Coinbase-Pro-Trading-Toolkit (Coinbase Pro API) There are several ways to get the market price using the toolkit. I am not trying to run a live feed, I simply want to use the API, so I'm looking at a couple different methods:
publicClient.getProductTicker(product)
coinbasePro.loadMidMarketPrice(product)
Both of these work great when I pass in a product of "BTC-USD". But when I try passing in "ETH-USD" it fails. Are these methods designed to work with certain products?