02 · Stock Token price with the SDK

Exactly what example 01 does — one import, one createHoodClient(), one getQuote(). The hoodchain SDK bundles the full 95-token registry, the Chainlink decode, staleness handling, and typed errors, so you never hand-maintain an address table.

What it proves: the SDK collapses example 01 to three meaningful lines and covers all 95 Stock Tokens instead of a hard-coded handful.

Prerequisites

• Node ≥ 20. Reads only — no wallet, no key, no funds.
• hoodchain is not on npm yet. Until it is, install the local sibling build:

  npm install                       # installs viem
  npm install ../../../robinhood-chain-sdk   # the hoodchain build (or: npm i hoodchain once published)
  

  When both repos are extracted as siblings, the path is ../robinhood-chain-sdk.

Run

npm start                     # AAPL TSLA NVDA
node index.js MSFT GOOGL AMD  # any registry symbols

Expected output

AAPL   $   315.50   feed 0x6B22A786bAa607d76728168703a39Ea9C99f2cD0   age 39.3h
TSLA   $   407.82   feed 0x4A1166a659A55625345e9515b32adECea5547C38   age 38.5h
NVDA   $   210.19   feed 0x379EC4f7C378F34a1B47E4F3cbeBCbAC3E8E9F15   age 42.0h

Unknown symbols surface a typed UnknownSymbolError:

FOOBAR —  UnknownSymbolError: Unknown Stock Token symbol "FOOBAR". Symbols are
case-insensitive tickers as listed on-chain (e.g. "AAPL", "TSLA"). ...

The SDK also throws FeedNotFoundError (token has no feed) and StaleFeedError (answer older than the tolerance) — catch by class, not by string.

Built by nirholas · three.ws