ox
Version:
Ethereum Standard Library
35 lines • 1.2 kB
JavaScript
import * as Address from '../core/Address.js';
import * as Hash from '../core/Hash.js';
import * as Hex from '../core/Hex.js';
/**
* Converts a user token and validator token to a pool ID.
*
* Pool IDs are deterministic keys derived from two token addresses (order-independent)
* used to identify trading pairs on Tempo's enshrined stablecoin DEX.
*
* [Stablecoin DEX Specification](https://docs.tempo.xyz/protocol/exchange/spec)
*
* @example
* ```ts twoslash
* import { PoolId } from 'ox/tempo'
*
* const poolId = PoolId.from({
* userToken: '0x20c0000000000000000000000000000000000001',
* validatorToken:
* '0x20c0000000000000000000000000000000000002'
* })
* ```
*
* @param value - User token and validator token.
* @returns The pool ID.
*/
export function from(value) {
const { userToken, validatorToken } = value;
Address.assert(userToken);
Address.assert(validatorToken);
const [left, right] = userToken.toLowerCase() < validatorToken.toLowerCase()
? [userToken, validatorToken]
: [validatorToken, userToken];
return Hash.keccak256(Hex.concat(Hex.padLeft(left, 32), Hex.padLeft(right, 32)));
}
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