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coins_details: fetch CMC metadata, match tokens by contract address

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This commit is contained in:
matejcik 2019-02-05 14:18:39 +01:00
parent 8f5026e71e
commit 1ecd56f33b
1 changed files with 21 additions and 0 deletions
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21
tools/coins_details.py
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@ -73,6 +73,19 @@ def coinmarketcap_init(api_key, refresh=None):
api_key, api_key,
params={"limit": 5000, "convert": "USD"}, params={"limit": 5000, "convert": "USD"},
) )
by_id = {str(coin["id"]): coin for coin in coinmarketcap_data["data"]}
all_ids = list(by_id.keys())
while all_ids:
first_100 = all_ids[:100]
all_ids = all_ids[100:]
time.sleep(1)
print("Fetching metadata, {} coins remaining...".format(len(all_ids)))
metadata = coinmarketcap_call(
"cryptocurrency/info", api_key, params={"id": ",".join(first_100)}
)
for coin_id, meta in metadata["data"].items():
by_id[coin_id]["meta"] = meta
with open(COINMAKETCAP_CACHE, "w") as f: with open(COINMAKETCAP_CACHE, "w") as f:
json.dump(coinmarketcap_data, f) json.dump(coinmarketcap_data, f)
except Exception as e: except Exception as e:
@ -81,9 +94,13 @@ def coinmarketcap_init(api_key, refresh=None):
coin_data = {} coin_data = {}
for coin in coinmarketcap_data["data"]: for coin in coinmarketcap_data["data"]:
slug = coin["slug"] slug = coin["slug"]
platform = coin["meta"]["platform"]
market_cap = coin["quote"]["USD"]["market_cap"] market_cap = coin["quote"]["USD"]["market_cap"]
if market_cap is not None: if market_cap is not None:
coin_data[slug] = int(market_cap) coin_data[slug] = int(market_cap)
if platform is not None and platform["name"] == "Ethereum":
address = platform["token_address"].lower()
coin_data[address] = market_cap
MARKET_CAPS = coin_data MARKET_CAPS = coin_data
@ -92,6 +109,10 @@ def coinmarketcap_init(api_key, refresh=None):
def marketcap(coin): def marketcap(coin):
cap = None cap = None
if coin["type"] == "erc20":
address = coin["address"].lower()
return MARKET_CAPS.get(address)
if "coinmarketcap_alias" in coin: if "coinmarketcap_alias" in coin:
cap = MARKET_CAPS.get(coin["coinmarketcap_alias"]) cap = MARKET_CAPS.get(coin["coinmarketcap_alias"])
if cap is None: if cap is None: