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feat(lazer): Update EVM Example and Test #46

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Merged
merged 6 commits into from
Feb 3, 2025
Merged

feat(lazer): Update EVM Example and Test #46

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921def0
Update example evm and js
darunrs Jan 30, 2025
5e38857
Not perfectly working test
darunrs Feb 3, 2025
cb3e44c
Update JS to use real time and make tests pass
darunrs Feb 3, 2025
e1167f8
Change js sdk version usage
darunrs Feb 3, 2025
a12ea3f
No change to js package json
darunrs Feb 3, 2025
ac15143
Use main branch crosschain
darunrs Feb 3, 2025
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8 changes: 8 additions & 0 deletions lazer/evm/src/ExampleReceiver.sol
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Original file line number Diff line number Diff line change
Expand Up @@ -55,6 +55,14 @@ contract ExampleReceiver {
uint64 _price;
(_price, pos) = PythLazerLib.parseFeedValueUint64(payload, pos);
console.log("best ask price %d", _price);
} else if (property == PythLazerLib.PriceFeedProperty.Exponent) {
int16 _exponent;
(_exponent, pos) = PythLazerLib.parseFeedValueInt16(payload, pos);
console.log("exponent %d", _exponent);
} else if (property == PythLazerLib.PriceFeedProperty.PublisherCount) {
int16 _publisher_count;
(_publisher_count, pos) = PythLazerLib.parseFeedValueUint16(payload, pos);
console.log("publisher count %d", _publisher_count);
} else {
revert("unknown property");
}
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6 changes: 4 additions & 2 deletions lazer/evm/test/ExampleReceiver.t.sol
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Expand Up @@ -25,14 +25,16 @@ contract ExampleReceiverTest is Test {

ExampleReceiver receiver = new ExampleReceiver(address(pythLazer));
bytes memory update =
hex"2a22999a577d3cc0202197939d736bc0dcf71b9dde7b9470e4d16fa8e2120c0787a1c0d744d0c39cc372af4d1ecf2d09e84160ca905f3f597d20e2eec144a446a0459ad600001c93c7d3750006240af373971c01010000000201000000000005f5e100";
hex"2a22999a9ee4e2a3df5affd0ad8c7c46c96d3b5ef197dd653bedd8f44a4b6b69b767fbc66341e80b80acb09ead98c60d169b9a99657ebada101f447378f227bffbc69d3d01003493c7d37500062cf28659c1e801010000000605000000000005f5e10002000000000000000001000000000000000003000104fff8";
console.logBytes(update);

vm.prank(consumer);
receiver.updatePrice{value: 5 * fee}(update);

assertEq(receiver.timestamp(), 1738270008001000);
assertEq(receiver.price(), 100000000);
assertEq(receiver.timestamp(), 1728479312975644);
assertEq(receiver.exponent(), -8);
assertEq(receiver.publisherCount(), 1);

assertEq(address(pythLazer).balance, fee);
assertEq(address(receiver).balance, 0);
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2 changes: 1 addition & 1 deletion lazer/js/package.json
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Expand Up @@ -16,7 +16,7 @@
"author": "",
"license": "Apache-2.0",
"dependencies": {
"@pythnetwork/pyth-lazer-sdk": "^0.3.1",
"@pythnetwork/pyth-lazer-sdk": "^0.4.0",
"@solana/web3.js": "^1.98.0"
},
"devDependencies": {
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2 changes: 1 addition & 1 deletion lazer/js/src/publish.ts
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Expand Up @@ -168,7 +168,7 @@ const main = async () => {
properties: ["price"],
chains: ["solana"],
deliveryFormat: "json",
channel: "real_time",
channel: "fixed_rate@1ms",
jsonBinaryEncoding: "hex",
});
};
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