Energyclient Extra Quality Official

def close(self): self.conn.close() | Problem | Strategy | |---------|----------| | Network failure | Retry with backoff (3–5 attempts) | | Rate limiting | Parse Retry-After header, queue commands | | Invalid token | Re‑authenticate automatically once | | Data gaps | Interpolate or flag missing samples | | Meter offline | Cache commands; apply when reconnected |

import requests import sqlite3 import time from dataclasses import dataclass from datetime import datetime, timezone @dataclass class EnergyClient: api_root: str meter_id: str token: str energyclient

from oauthlib.oauth2 import BackendApplicationClient from requests_oauthlib import OAuth2Session client = BackendApplicationClient(client_id=CLIENT_ID) oauth = OAuth2Session(client=client) token = oauth.fetch_token(token_url=TOKEN_URL, client_secret=CLIENT_SECRET) Typical core entities: def close(self): self

def _init_db(self): self.conn = sqlite3.connect("energy_cache.db") self.conn.execute(""" CREATE TABLE IF NOT EXISTS readings ( ts TEXT PRIMARY KEY, power_w REAL, cumulative_wh REAL ) """) cumulative_wh REAL ) """)