Merge pull request #113 from pyth-network/push-nvlzuznkvoon

feat!: allow loading network-specific PriceAccount

.github/workflows/pyth-sdk-example-anchor-contract.yml

@@ -22,7 +22,7 @@ jobs:
     - name: Install solana binaries
       run: |
         # Installing 1.16.x cli tools to have sbf instead of bpf. bpf does not work anymore.
-        sh -c "$(curl -sSfL https://release.solana.com/v1.17.0/install)"
+        sh -c "$(curl -sSfL https://release.solana.com/v1.18.1/install)"
         echo "/home/runner/.local/share/solana/install/active_release/bin" >> $GITHUB_PATH
     - name: Install anchor binaries
       run: |

.github/workflows/pyth-sdk-example-solana-contract.yml

@@ -22,7 +22,7 @@ jobs:
     - name: Install solana binaries
       run: |
         # Installing 1.16.x cli tools to have sbf instead of bpf. bpf does not work anymore.
-        sh -c "$(curl -sSfL https://release.solana.com/v1.17.0/install)"
+        sh -c "$(curl -sSfL https://release.solana.com/v1.18.1/install)"
         echo "/home/runner/.local/share/solana/install/active_release/bin" >> $GITHUB_PATH
     - name: Build
       run: scripts/build.sh

.github/workflows/pyth-sdk-solana.yml

@@ -35,7 +35,7 @@ jobs:
     - name: Install Solana Binaries
       run: |
         # Installing 1.17.x cli tools to have sbf instead of bpf. bpf does not work anymore.
-        sh -c "$(curl -sSfL https://release.solana.com/v1.17.0/install)"
+        sh -c "$(curl -sSfL https://release.solana.com/v1.18.1/install)"
         echo "/home/runner/.local/share/solana/install/active_release/bin" >> $GITHUB_PATH
     - name: Build
       run: cargo build --verbose

examples/sol-anchor-contract/programs/sol-anchor-contract/Cargo.toml

@@ -19,4 +19,4 @@ default = []
 [dependencies]
 anchor-lang = "0.28.0"
 pyth-sdk = { path = "../../../../pyth-sdk", version = "0.8.0" }
-pyth-sdk-solana = { path = "../../../../pyth-sdk-solana", version = "0.9.0" }
+pyth-sdk-solana = { path = "../../../../pyth-sdk-solana", version = "0.10.0" }

examples/sol-anchor-contract/programs/sol-anchor-contract/src/state.rs

@@ -1,5 +1,6 @@
 use anchor_lang::prelude::*;
 use pyth_sdk_solana::state::load_price_account;
+use pyth_sdk_solana::state::SolanaPriceAccount;
 use std::ops::Deref;
 use std::str::FromStr;
 
@@ -25,7 +26,8 @@ impl anchor_lang::Owner for PriceFeed {
 
 impl anchor_lang::AccountDeserialize for PriceFeed {
     fn try_deserialize_unchecked(data: &mut &[u8]) -> Result<Self> {
-        let account = load_price_account(data).map_err(|_x| error!(ErrorCode::PythError))?;
+        let account: &SolanaPriceAccount =
+            load_price_account(data).map_err(|_x| error!(ErrorCode::PythError))?;
 
         // Use a dummy key since the key field will be removed from the SDK
         let zeros: [u8; 32] = [0; 32];

examples/sol-contract/Cargo.toml

@@ -11,4 +11,4 @@ crate-type = ["cdylib", "lib"]
 borsh = "0.10.3"
 arrayref = "0.3.6"
 solana-program = ">= 1.10"
-pyth-sdk-solana = { path = "../../pyth-sdk-solana", version = "0.9.0" }
+pyth-sdk-solana = { path = "../../pyth-sdk-solana", version = "0.10.0" }

examples/sol-contract/src/processor.rs

@@ -18,7 +18,7 @@ use borsh::{
     BorshDeserialize,
     BorshSerialize,
 };
-use pyth_sdk_solana::load_price_feed_from_account_info;
+use pyth_sdk_solana::state::SolanaPriceAccount;
 
 use crate::instruction::ExampleInstructions;
 use crate::state::AdminConfig;
@@ -53,8 +53,8 @@ pub fn process_instruction(
             config.collateral_price_feed_id = *pyth_collateral_account.key;
 
             // Make sure these Pyth price accounts can be loaded
-            load_price_feed_from_account_info(pyth_loan_account)?;
-            load_price_feed_from_account_info(pyth_collateral_account)?;
+            SolanaPriceAccount::account_info_to_feed(pyth_loan_account)?;
+            SolanaPriceAccount::account_info_to_feed(pyth_collateral_account)?;
 
             let config_data = config.try_to_vec()?;
             let config_dst = &mut admin_config_account.try_borrow_mut_data()?;
@@ -85,7 +85,7 @@ pub fn process_instruction(
             // (price + conf) * loan_qty * 10 ^ (expo).
             // Here is more explanation on confidence interval in Pyth:
             // https://docs.pyth.network/consume-data/best-practices
-            let feed1 = load_price_feed_from_account_info(pyth_loan_account)?;
+            let feed1 = SolanaPriceAccount::account_info_to_feed(pyth_loan_account)?;
             let current_timestamp1 = Clock::get()?.unix_timestamp;
             let result1 = feed1
                 .get_price_no_older_than(current_timestamp1, 60)
@@ -107,7 +107,7 @@ pub fn process_instruction(
             // (price - conf) * collateral_qty * 10 ^ (expo).
             // Here is more explanation on confidence interval in Pyth:
             // https://docs.pyth.network/consume-data/best-practices
-            let feed2 = load_price_feed_from_account_info(pyth_collateral_account)?;
+            let feed2 = SolanaPriceAccount::account_info_to_feed(pyth_collateral_account)?;
             let current_timestamp2 = Clock::get()?.unix_timestamp;
             let result2 = feed2
                 .get_price_no_older_than(current_timestamp2, 60)

pyth-sdk-solana/Cargo.toml

@@ -1,6 +1,6 @@
 [package]
 name = "pyth-sdk-solana"
-version = "0.9.0"
+version = "0.10.0"
 authors = ["Pyth Data Foundation"]
 edition = "2018"
 license = "Apache-2.0"

pyth-sdk-solana/examples/eth_price.rs

@@ -1,6 +1,6 @@
 // example usage of reading pyth price from solana/pythnet price account
 
-use pyth_sdk_solana::load_price_feed_from_account;
+use pyth_sdk_solana::state::SolanaPriceAccount;
 use solana_client::rpc_client::RpcClient;
 use solana_program::pubkey::Pubkey;
 use std::str::FromStr;
@@ -25,7 +25,7 @@ fn main() {
         // get price data from key
         let mut eth_price_account = clnt.get_account(&eth_price_key).unwrap();
         let eth_price_feed =
-            load_price_feed_from_account(&eth_price_key, &mut eth_price_account).unwrap();
+            SolanaPriceAccount::account_to_feed(&eth_price_key, &mut eth_price_account).unwrap();
 
         println!(".....ETH/USD.....");
 

pyth-sdk-solana/examples/get_accounts.rs

@@ -9,6 +9,7 @@ use pyth_sdk_solana::state::{
     load_product_account,
     CorpAction,
     PriceType,
+    SolanaPriceAccount,
 };
 use solana_client::rpc_client::RpcClient;
 use solana_program::pubkey::Pubkey;
@@ -62,7 +63,8 @@ fn main() {
                 let mut px_pkey = prod_acct.px_acc;
                 loop {
                     let price_data = clnt.get_account_data(&px_pkey).unwrap();
-                    let price_account = load_price_account(&price_data).unwrap();
+                    let price_account: &SolanaPriceAccount =
+                        load_price_account(&price_data).unwrap();
                     let price_feed = price_account.to_price_feed(&px_pkey);
 
                     println!("  price_account .. {:?}", px_pkey);

pyth-sdk-solana/src/lib.rs

@@ -14,7 +14,11 @@ use solana_program::account_info::{
 };
 use solana_program::pubkey::Pubkey;
 
-use state::load_price_account;
+use state::{
+    load_price_account,
+    GenericPriceAccount,
+    SolanaPriceAccount,
+};
 
 pub use pyth_sdk::{
     Price,
@@ -27,24 +31,43 @@ pub use pyth_sdk::{
 pub const VALID_SLOT_PERIOD: u64 = 25;
 
 /// Loads Pyth Feed Price from Price Account Info.
+#[deprecated(note = "solana-specific, use SolanaPriceAccount::account_info_to_feed instead.")]
 pub fn load_price_feed_from_account_info(
     price_account_info: &AccountInfo,
 ) -> Result<PriceFeed, PythError> {
-    let data = price_account_info
-        .try_borrow_data()
-        .map_err(|_| PythError::InvalidAccountData)?;
-    let price_account = load_price_account(*data)?;
-
-    Ok(price_account.to_price_feed(price_account_info.key))
+    SolanaPriceAccount::account_info_to_feed(price_account_info)
 }
 
 /// Loads Pyth Price Feed from Account when using Solana Client.
 ///
 /// It is a helper function which constructs Account Info when reading Account in clients.
+#[deprecated(note = "solana-specific, use SolanaPriceAccount::account_to_feed instead.")]
 pub fn load_price_feed_from_account(
     price_key: &Pubkey,
     price_account: &mut impl Account,
 ) -> Result<PriceFeed, PythError> {
-    let price_account_info = (price_key, price_account).into_account_info();
-    load_price_feed_from_account_info(&price_account_info)
+    SolanaPriceAccount::account_to_feed(price_key, price_account)
+}
+
+impl<const N: usize, T: 'static> GenericPriceAccount<N, T>
+where
+    T: Default,
+    T: Copy,
+{
+    pub fn account_info_to_feed(price_account_info: &AccountInfo) -> Result<PriceFeed, PythError> {
+        load_price_account::<N, T>(
+            *price_account_info
+                .try_borrow_data()
+                .map_err(|_| PythError::InvalidAccountData)?,
+        )
+        .map(|acc| acc.to_price_feed(price_account_info.key))
+    }
+
+    pub fn account_to_feed(
+        price_key: &Pubkey,
+        price_account: &mut impl Account,
+    ) -> Result<PriceFeed, PythError> {
+        let price_account_info = (price_key, price_account).into_account_info();
+        Self::account_info_to_feed(&price_account_info)
+    }
 }