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base_api_session.py
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base_api_session.py
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import os
import urllib
import requests
from logger import logger
MAX_TIMEOUT = 10
class BaseApiSession:
def get(self, url, params, timeout=MAX_TIMEOUT, **kwargs):
"""
Wrap requests.get() with error handling;
return response in JSON.
"""
# encode and escape url manually
# this is needed for space characters
# requests.get() converts space to + instead of %20
params = urllib.parse.urlencode(params, quote_via=urllib.parse.quote)
try:
resp = requests.get(url, params, timeout=timeout, **kwargs)
resp.raise_for_status()
except requests.Timeout:
logger.critical(f"GET request timed out!")
if os.environ.get("FLASK_ENV") == "development":
raise
return None
except requests.RequestException as e:
logger.error(f"GET request: {e}")
if os.environ.get("FLASK_ENV") == "development":
raise
return None
return resp.json()
def post(self, url, data, timeout=MAX_TIMEOUT, ** kwargs):
"""
Wrap requests.post() with error handling;
return response in JSON.
"""
try:
resp = requests.post(url, json=data, timeout=timeout, **kwargs)
resp.raise_for_status()
except requests.Timeout:
logger.critical(f"POST request timed out!")
if os.environ.get("FLASK_ENV") == "development":
raise
return None
except requests.RequestException as e:
logger.error(f"POST request: {e} - body: {e.request.body.decode()}")
if os.environ.get("FLASK_ENV") == "development":
raise
return None
return resp.json()
def delete(self, url):
"""
Wrap requests.deletes() with error handling;
return response in JSON.
"""
try:
resp = requests.delete(url, timeout=MAX_TIMEOUT)
resp.raise_for_status()
except requests.Timeout:
logger.critical(f"DELETE request timed out!")
if os.environ.get("FLASK_ENV") == "development":
raise
return None
except requests.RequestException as e:
logger.error(f"DELETE request: {e}")
if os.environ.get("FLASK_ENV") == "development":
raise
return None
return resp.json()
def isUrlValid(self, url, timeout=0.5, **kwargs):
"""
Check if url is valid only (not if it is alive);
return True if it is; otherwise False.
"""
try:
resp = requests.head(url, timeout=timeout,
**kwargs).raise_for_status()
except requests.Timeout:
logger.warning(f"HEAD request timed out for {url}")
return True
except requests.HTTPError as e:
logger.warning(f"HEAD request: {e}")
return True
except requests.RequestException as e:
logger.error(f"ERROR: {e}")
return False
return True