@broxus/js-bridge-essentials/dist/esm/models/token-root-alien-solana/TokenRootAlienSolanaUtils.js

Bridge JavaScript Essentials library

import { getFullContractState } from '@broxus/js-core';
import BigNumber from 'bignumber.js';
import bs58 from 'bs58';
import { tokenRootAlienSolanaContract } from '../../models/token-root-alien-solana/contracts';
import { resolveSolanaAddress } from '../../utils';
export class TokenRootAlienSolanaUtils {
    /**
     * Get alien token meta by the given TVM-like token address
     * @param {ProviderRpcClient} connection
     * @param {Address | string} tokenAddress
     * @param {FullContractState} [cachedState] - optional. Full contract state of the token root alien EVM contract
     */
    static async meta(connection, tokenAddress, cachedState) {
        const state = cachedState ?? await getFullContractState(connection, tokenAddress);
        const result = await tokenRootAlienSolanaContract(connection, tokenAddress)
            .methods.meta({ answerId: 0 })
            .call({ cachedState: state, responsible: true });
        const hex = BigNumber(result.base_token).toString(16).padStart(64, '0');
        const buffer = Buffer.from(hex, 'hex');
        return {
            baseToken: result.base_token,
            decimals: result.decimals,
            name: result.name,
            solTokenAddress: resolveSolanaAddress(bs58.encode(buffer)),
            symbol: result.symbol,
        };
    }
}