OCR configuration, currently is specific for validators involved in participating in the Oracle price feeds.
We will send an announcement to validators while changing the current price feeds to OCR protocol based price feeds.
Here are the detailed steps to enable Offchain reporting onto the Plugin Node for Peer.
To enable OCR in the Plugin environment, set the parameters in the config.toml file as shown below. Once the changes are made, restart the plugin using pm2 restart 0.
// OCR parameters in config.toml in addition to Plugin parameters
[P2P]
PeerID = '<peer_ID_as shown in the image>'
[P2P.V1]
Enabled = true
[P2P.V2]
Enabled = true
AnnounceAddresses = ['<Public_IP_address_of_the_server>:5001']
DefaultBootstrappers = ['<bootStrapper_peer_ID>@<bootStrapper_node_IP>:5001']
ListenAddresses = ['<Public_IP_address_of_the_server>:5001']
[OCR]
Enabled = true
KeyBundleID = '<key_bundle_ID_as shown in the image>'
[OCR2]
Enabled = true
KeyBundleID = '<key_bundle_ID_as shown in the image>'
// SAMPLE OUTPUT of the above command execution
[0x4bEDDe1B6464aC385C32E06Db3E3cD7486636BA7,0x336acE60B9247CC39996f15B2788AD7C9df7b2A1,0xeF53A8245De8169c40a2325Bab7D7369a92Fb4bC,0xae51BD92635FCbD683975aEcB778f2CE7d013FA5]
[0xe2B935C17089b31c457B80A577338AbeDD5e6206,0xF73A7CD3908700F18e424C327c0301583bcEf41d,0x3CE7D10187eFf99DEbDC0923B2d4F447A5b42eB9,0x20A3beCE1147e33F1932AA12245E50858b261fFB]
1
1
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
Get the [5th] parameter field from the above output as the value of hexString
Deploy the cast.sol contract in remix to convert the hexString value to solidity bytes
```remix-solidity
// SPDX-License-Identifier: MIT
pragma solidity ^0.8.0;
contract HexToBytesConverter {
// Function to convert hexadecimal string to bytes
function hexStringToBytes(string memory hexa) public pure returns (bytes memory) {
bytes memory b = bytes(hexa);
require(b.length % 2 == 0, "Hex string has odd length");
bytes memory result = new bytes(b.length / 2);
for (uint256 i = 0; i < bytes(hexa).length / 2; i++) {
result[i] = bytes1(_fromHexChar(uint8(bytes(hexa)[2 * i])) * 16 + _fromHexChar(uint8(bytes(hexa)[2 * i + 1])));
}
return result;
}
// Helper function to convert a hex character to its value
function _fromHexChar(uint8 c) internal pure returns (uint8) {
if (bytes1(c) >= bytes1('0') && bytes1(c) <= bytes1('9')) {
return c - uint8(bytes1('0'));
} else if (bytes1(c) >= bytes1('a') && bytes1(c) <= bytes1('f')) {
return 10 + c - uint8(bytes1('a'));
} else if (bytes1(c) >= bytes1('A') && bytes1(c) <= bytes1('F')) {
return 10 + c - uint8(bytes1('A'));
} else {
revert("Invalid hex character");
}
}
// Function to simulate the usage of envBytes
function getEnvBytes() public view returns (bytes memory) {
// In a real scenario, this would retrieve the environment variable
// Using the provided long hexadecimal string as an example
string memory hexStr = "";
return hexStringToBytes(hexStr);
}
}
```
In the 'hexStringToBytes' option pass the hexString value and click to get the solidity converted bytes.
Set the payee in Offchainaggregator.sol contract using the below-mentioned values, and click on transact,
transmitters: ["<node_address_peer1>","<node_address_peer2>","<node_address_peer3>","<node_address_peer4>"]
payees: ["<node_address_peer1_walletaddress>","<node_address_peer2_walletaddress>","<node_address_peer3_walletaddress>","<node_address_peer4_walletaddress>"]
Now set Offchainaggregator config using setConfig option
signers: [1] value from step 8 output
transmitters: [2] value from step 8 output
threshold: [3] value from step 8 output
_encodedConfigVersion: [4] value from step 8 output
encoded: bytes value from step 11
It is time to submit Job for OCR.
Job spec template for Peer nodes is available in foundry directory @ ./src/sandbox/clroot/jobs/ocr_job.toml.
Kindly, make the required changes in the ocr_job.toml (mentioned in between '<>')and submit the job in your node, so that it will communicate with the bootstrapper node and participate in generating the off chain report.
