Hook db connection when you're running a long term sleep crawler assignment.
Project description
Flask Database Pacemaker
python_requires>=3.6
Flask>=1.0.2
Flask-APScheduler>=1.11.0
Flask-SQLAlchemy>=2.3.2
- How to use
1. Add setting into config.py
DB_PACEMAKER_SWITCH
is requiredMODELS_PATH_LIST
is requiredPOKE_DB_INTERVAL
default: 1 hour.
# for DBPacemaker - 透過定時排程請求DB,保持連線
DB_PACEMAKER_SWITCH = True if os.environ['ENVIRONMENT'] == 'develop' else False
MODELS_PATH_LIST = ['spyder_common.models']
POKE_DB_INTERVAL = 60 * 60
2. Establish in app.py
Note: Append this after you declared
config
andapp
from flask import Flask
from flask_sqlalchemy import SQLAlchemy
from flask_dbpacemaker import DBPacemaker # import package
from config import Config
app = Flask(__name__)
config = Config()
app.config.from_object(config)
db = SQLAlchemy(app)
DBPacemaker.run(app, db=db, config=config) # setup here
- If you've set a scheduler
DBPacemaker.run(app, db=db, config=config, secheduler=your_flask_apscheduler)
Note: The job permanent trigger is interval
.
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