34 lines
1.0 KiB
Python
34 lines
1.0 KiB
Python
import base64
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from solana.publickey import PublicKey
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from solana.rpc.api import Client
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from solana.rpc.types import RPCResponse
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from spl.token.constants import WRAPPED_SOL_MINT
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from pyserum._layouts.market import MINT_LAYOUT
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def parse_bytes_data(res: RPCResponse) -> bytes:
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if ("result" not in res) or ("value" not in res["result"]) or ("data" not in res["result"]["value"]):
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raise Exception("Cannot load byte data.")
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data = res["result"]["value"]["data"][0]
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return base64.decodebytes(data.encode("ascii"))
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def load_bytes_data(addr: PublicKey, conn: Client) -> bytes:
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res = conn.get_account_info(addr)
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return parse_bytes_data(res)
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def parse_mint_decimals(bytes_data: bytes) -> int:
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return MINT_LAYOUT.parse(bytes_data).decimals
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def get_mint_decimals(conn: Client, mint_pub_key: PublicKey) -> int:
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"""Get the mint decimals for a token mint"""
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if mint_pub_key == WRAPPED_SOL_MINT:
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return 9
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bytes_data = load_bytes_data(mint_pub_key, conn)
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return parse_mint_decimals(bytes_data)
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