Price Feeds
get_price_no_older_than

Get Price No Older Than

Get the latest price and confidence interval for the requested price feed id, if it has been updated sufficiently recently. The price feed id is a 32-byte id written as a hexadecimal string; see the price feed ids (opens in a new tab) page to look up the id for a given symbol. The returned price and confidence are decimal numbers written in the form a * 10^e, where e is an exponent included in the result. For example, a price of 1234 with an exponent of -2 represents the number 12.34. The result also includes a timestamp which is the unix timestamp for the price update.

The caller provides a max_age_secs argument that specifies how old the price can be. The call reverts if the on-chain price is from more than max_age_secs seconds in the past (with respect to the current on-chain timestamp).

Users of this method will typically invoke update_price_feeds to update the on-chain price before reading it. This step ensures that the on-chain price is fresh and the call does not revert.

ArgumentInputDescription

price_identifier*

hex

The ID of the price feed you want to read

max_age_secs*

int

Maximum age of the on-chain price in seconds.
Examples

Example Code

use pyth::pyth;
use pyth::price_identifier;
 
pyth::get_price_no_older_than(
  price_identifier::from_byte_vec(x"<price_identifier>"),
  <max_age_secs>
);
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