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Clarity

Read Tachi prices from Stacks contracts through price-oracle.

Integrate

Read Tachi data from Solidity, Clarity or the API.

1 min read 3 sections Testnet

Read a price

The oracle contract is ST2N2SKW9XD6F6XC42C4NGMP3ZWWVMB27FRX002X8.price-oracle. Every getter is read-only and returns a response, so unwrap it.

value.clar
;; Value of `shares` SCOM in US dollars, 8 decimals.
(define-read-only (value-of (shares uint))
  (let ((p (unwrap! (contract-call?
                      'ST2N2SKW9XD6F6XC42C4NGMP3ZWWVMB27FRX002X8.price-oracle
                      get-price-if-fresh-by-pair "SCOM/USD" u900)
                    (err u1))))
    (ok (* shares (get price p)))))

Read-only functions

FunctionWhat it does
feed-id-of (pair)Feed id of a pair name.
get-latest-price (feed-id)Newest stored price.
get-price-if-fresh (feed-id) (max-age)Errors when older than max-age seconds.
get-market-status (feed-id)Open, closed or halted.
get-latest-price-by-pair (pair)Newest price by name.
get-price-if-fresh-by-pair (pair) (max-age)Fresh price by name.
get-ticker-prices (symbol)KES and USD prices of one ticker.
get-ticker-prices-if-fresh (symbol) (max-age)Both prices, age checked.
verify-report-if-freshVerifies a signed report without storing it.
get-listed-feedsEvery listed feed id.
get-feed / get-round / get-latest-roundFeed details and history.
is-paused (feed-id)True while the feed is paused.
get-decimals / get-signersAlways 8 · the registered signer keys.

Reference consumer

Deployed example
ST2N2SKW9XD6F6XC42C4NGMP3ZWWVMB27FRX002X8.example-consumer shows a full read with freshness and status checks.

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