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from fastapi import APIRouter
from models.market import MarketData
from gridstatus import ISONE
from datetime import datetime, timedelta
from typing import List
router = APIRouter()
# Keeping the scope of this api to just one market right now
iso = ISONE()
# In-memory cache
_cached_day_ahead: List[MarketData] = []
_cache_timestamp: datetime | None = None
_cached_real_time: List[MarketData] = []
_cache_real_time_timestamp: datetime | None = None
# TODO: Error Handling
@router.get("/day-ahead", response_model=list[MarketData])
def get_day_ahead_data():
global _cached_day_ahead, _cache_timestamp
now = datetime.utcnow()
if _cache_timestamp is None or now - _cache_timestamp > timedelta(hours=1):
df = iso.get_lmp(date=datetime.now().date(), market="DAY_AHEAD_HOURLY", locations="ALL")
grouped = (df.groupby("Interval Start")[["LMP", "Energy", "Congestion", "Loss"]].mean().reset_index())
_cached_day_ahead = [
MarketData(
timestamp=row["Interval Start"],
lmp=row["LMP"],
energy=row["Energy"],
congestion=row["Congestion"],
loss=row["Loss"],
)
for _, row in grouped.iterrows()
]
_cache_timestamp = now
return _cached_day_ahead
@router.get("/real-time", response_model=list[MarketData])
def get_real_time_data():
global _cached_real_time, _cache_real_time_timestamp
now = datetime.utcnow()
if _cache_real_time_timestamp is None or now - _cache_real_time_timestamp > timedelta(minutes=5):
df = iso.get_lmp(date="today", market="REAL_TIME_5_MIN", locations="ALL")
grouped = (df.groupby("Interval Start")[["LMP", "Energy", "Congestion", "Loss"]].mean().reset_index())
_cached_real_time = [
MarketData(
timestamp=row["Interval Start"],
lmp=row["LMP"],
energy=row["Energy"],
congestion=row["Congestion"],
loss=row["Loss"],
)
for _, row in grouped.iterrows()
]
_cache_real_time_timestamp = now
return _cached_real_time
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