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aggregate_tokens.py
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aggregate_tokens.py
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import asyncio
import json
import logging
from collections import defaultdict
from coingecko_ids import CHAIN_ID_TO_NATIVE_COIN_COINGECKO_ID
from common import (
Address,
ChainId,
NATIVE_ADDR_0x0,
NATIVE_ADDR_0xe,
NATIVE_MATIC_ADDR,
Token,
CHAIN_NAMES_BY_ID,
)
from token_list_providers import (
CoinGeckoTokenLists,
Lifinance,
OneInchTokenLists,
RubicLists,
tokenlists_providers,
)
TOKENLISTS_FOLDER = "tokenlists"
ALL_TOKENS_FOLDER = "all_tokens"
log = logging.getLogger(__name__)
def merge_tokens(
old_tokens: dict[int, dict[Address, Token]],
new_tokens: dict[int, dict[Address, Token]],
) -> dict[int, dict[Address, Token]]:
merged_tokens = {
int(k): {a: t for a, t in v.items()} for k, v in old_tokens.items()
}
for chain_id, tokens in new_tokens.items():
if merged_tokens.get(chain_id) is None:
merged_tokens[chain_id] = {}
for _, token in tokens.items():
addr = token.address
if merged_tokens[chain_id].get(addr) is not None:
current_listed_in = merged_tokens[chain_id][addr].listedIn
current_listed_in.extend(token.listedIn)
merged_tokens[chain_id][addr].listedIn = list(set(current_listed_in))
else:
merged_tokens[chain_id][addr] = token
return merged_tokens
def filter_ignored_tokens(
tokens: dict[int, dict[Address, Token]]
) -> dict[int, dict[Address, Token]]:
# {chain_id: set(addresses)}
IGNORE_LIST = {
# bsc scam coins (all addresses have some balance)
56: set(
[
"0x683e9dCf085E5efCc7925858aAcE94D4b8882024",
"0xD22202d23fE7dE9E3DbE11a2a88F42f4CB9507cf",
"0x5CA42204cDaa70d5c773946e69dE942b85CA6706",
]
),
42161: set(["walc.near"]),
}
filtered = {
k: {
a: t
for a, t in v.items()
if k not in IGNORE_LIST or a not in IGNORE_LIST[k]
}
for k, v in tokens.items()
}
return filtered
async def collect_trusted_tokens() -> dict[int, list[Token]]:
data = await asyncio.gather(
*[provider.get_tokenlists() for provider in tokenlists_providers]
)
provider_data: dict[str, dict[str, list[Token]]] = {}
for prov in data:
provider_data |= prov
res: dict[int, dict[Address, Token]] = defaultdict(dict)
for provider_name, tokens_by_chains in provider_data.items():
for _chain_id, tokens in tokens_by_chains.items():
chain_id = int(_chain_id)
if chain_id == 101: # solana
chain_id = -1
for token in tokens:
addr = Address(token.address.lower())
if token.chainId == 101:
token.chainId = ChainId(-1)
if addr == NATIVE_ADDR_0xe or addr == NATIVE_MATIC_ADDR:
addr = NATIVE_ADDR_0x0
token.address = NATIVE_ADDR_0x0
if addr == NATIVE_ADDR_0x0:
token.coingeckoId = CHAIN_ID_TO_NATIVE_COIN_COINGECKO_ID.get(
token.chainId
)
if addr in res[chain_id]:
# 1inch has best token logos
if provider_name == OneInchTokenLists.name:
res[chain_id][addr].logoURI = token.logoURI
# coingecko and lifinance have worst token logos
elif provider_name not in (
Lifinance.name,
CoinGeckoTokenLists.name,
RubicLists.name,
) and (
"tokens.1inch.io" not in (res[chain_id][addr].logoURI or [])
):
res[chain_id][addr].logoURI = token.logoURI
if provider_name not in res[chain_id][addr].listedIn:
res[chain_id][addr].listedIn.append(provider_name)
else:
res[chain_id][addr] = token
res[chain_id][addr].listedIn.append(provider_name)
old_tokens: dict[int, dict[Address, Token]] = {}
with open(f"{ALL_TOKENS_FOLDER}/all.json", "r", encoding="utf-8") as f:
old_tokens = {
int(k): {t.address: t for t in [Token(**t) for t in v]}
for k, v in json.load(f).items()
}
new_tokens = {
int(k): {t.address: t for _, t in v.items()}
for k, v in res.items()
if len(v) > 0
}
merged_tokens = merge_tokens(old_tokens, new_tokens)
filtered_tokens = filter_ignored_tokens(merged_tokens)
all_tokens = {
k: list(sorted(v.values(), key=lambda x: x.address, reverse=True))
for k, v in filtered_tokens.items()
if len(v) > 0
}
trusted = {k: [t for t in v if len(t.listedIn) > 1] for k, v in all_tokens.items()}
# trusted tokens
for chain_id, tokens in trusted.items():
filename = (
f"{TOKENLISTS_FOLDER}/{CHAIN_NAMES_BY_ID.get(str(chain_id), chain_id)}.json"
)
with open(filename, "w", encoding="utf-8") as f:
json.dump([t.dict() for t in tokens], f, ensure_ascii=False, indent=4)
with open(f"{TOKENLISTS_FOLDER}/all.json", "w", encoding="utf-8") as f:
json.dump(
{k: [t.dict() for t in v] for k, v in trusted.items()},
f,
ensure_ascii=False,
indent=4,
)
# all tokens found
for chain_id, tokens in all_tokens.items():
filename = (
f"{ALL_TOKENS_FOLDER}/{CHAIN_NAMES_BY_ID.get(str(chain_id), chain_id)}.json"
)
with open(filename, "w", encoding="utf-8") as f:
json.dump([t.dict() for t in tokens], f, ensure_ascii=False, indent=4)
with open(f"{ALL_TOKENS_FOLDER}/all.json", "w", encoding="utf-8") as f:
json.dump(
{k: [t.dict() for t in v] for k, v in all_tokens.items()},
f,
ensure_ascii=False,
indent=4,
)
log.info("Succesfully collected trusted tokens")
return trusted
if __name__ == "__main__":
asyncio.run(collect_trusted_tokens())