getCoinInfo
Get spot coin information。Parameter：coin - Coin name
Response Parameters
- coin: Token name
- transfer: Transferability
- chains: Support chain list
- chain: Chain name
- needTag: Need tag
- withdrawable: Withdrawal supported
- rechargeable: Deposit supported
- withdrawFee: Withdrawal transaction fee
- extraWithdrawFee: Extra charge (e.g., 0.1 means 10% on-chain destruction)
- browserUrl: Blockchain explorer address
- contractAddress: Coin contract address
- withdrawStep: Withdrawal count step (if not 0, withdrawal size must be a multiple of this value; if 0, no such limit)
- withdrawMinScale: Decimal places of withdrawal amount
- congestion: Chain network status (normal: normal, congested: congestion)
