Price Feed
PriceFeed Sample
One common task is to get the price feed of a token and calculate e.g. trading volume. Currently, we provide price feeds for a set of tokens. You can call it from the processor:
The function sigatures are:
API Semantics
ChainID is consistent everywhere in the processor. You could use
CHAIN_IDS.ETHEREUM
CoinType is the contract address for the ERC-20 token (e.g.
0xa0b86991c6218b36c1d19d4a2e9eb0ce3606eb48
) and Type for Aptos (e.g.0x1::aptos_coin::AptosCoin
)The returned price has a timestamp associated with it.
toleranceInDays
is an optional field. If missing, we use 1 DAY. This means that historical token prices are acceptable up to 1 day in time difference.If there is an error, or the timestamp diff is larger than 1 DAY, an
undefined
is returned.In theory, it is possible to obtain price by symbol. However, it is not recommended since symbol can be quite misleading
Last updated