Jake/data_pipeline_for_YNAB
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Added more error handling and logic to ingest

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This commit is contained in:
Jake Pullen
2024-08-10 17:11:57 +01:00
parent d25136fbb0
commit 24cc006ef5
3 changed files with 83 additions and 23 deletions
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config/config.yaml
+2
View File
@@ -24,3 +24,5 @@ raw_data_path: data/raw
processed_data_path: data/processed
base_data_path: data/base
warehouse_data_path: data/warehouse
REQUESTS_MAX_RETRIES: 3
REQUESTS_RETRY_DELAY: 5
config/exit_codes.py
+5
View File
@@ -3,3 +3,8 @@ MISSING_ENV_VARS = 1
MISSING_CONFIG_FILE = 2
CORRUPTED_CONFIG_FILE = 3
UNAUTHORIZED_API_TOKEN = 4
REQUESTS_ERROR = 5
BAD_REQUEST = 6
FORBIDDEN = 7
NOT_FOUND = 8
CONFLICT = 9
pipeline/ingest.py
+73 -20
View File
@@ -4,10 +4,13 @@ import json
import logging
import requests
import sys
import yaml
from typing import Dict, Any
import config.exit_codes as ec
class Ingest:
def __init__(self, config: Dict[str, Any]):
"""
Initialize the Ingest class with the provided configuration.
@@ -20,8 +23,18 @@ class Ingest:
self.raw_data_path = config['raw_data_path']
self.headers = {'Authorization': f'Bearer {self.api_token}'}
self.knowledge_cache = self.load_knowledge_cache()
self.load_additional_config()
self.fetch_and_cache_entity_data()
def load_additional_config(self):
"""
Load additional configuration values from the config file.
"""
with open('config.config.yaml', 'r') as f:
config = yaml.safe_load(f)
self.MAX_RETRIES = config['REQUESTS_MAX_RETRIES']
self.RETRY_DELAY = config['REQUESTS_RETRY_DELAY']
def load_knowledge_cache(self) -> Dict[str, Any]:
"""
Load the knowledge cache from the file if it exists.
@@ -40,8 +53,13 @@ class Ingest:
if not os.path.exists(directory):
os.makedirs(directory)
entity_file = f'{directory}/{current_time}.json'
with open(entity_file, 'w') as f:
json.dump(data, f, indent=4)
logging.info(f"Saving {entity} data to {entity_file}")
try:
with open(entity_file, 'w') as f:
json.dump(data, f, indent=4)
except Exception as e:
logging.error(f"Error saving {entity} data: {e}")
def update_server_knowledge_cache(self, entity: str, server_knowledge: Any):
"""
@@ -51,8 +69,7 @@ class Ingest:
with open(self.knowledge_file, 'r') as f:
knowledge_cache = json.load(f)
except FileNotFoundError:
# If the file does not exist, create an empty cache
# also create the file so we can save to it later
logging.info(f"Knowledge file not found. Creating a new one at {self.knowledge_file}. This is normal for the first run.")
os.makedirs(os.path.dirname(self.knowledge_file), exist_ok=True)
knowledge_cache = {}
@@ -80,34 +97,67 @@ class Ingest:
else:
logging.warning("X-Rate-Limit header is missing.")
def handle_response(self, response) -> bool:
if response.status_code == 400:
logging.error("Bad request. The request could not be understood by the API due to malformed syntax or validation errors.")
sys.exit(ec.BAD_REQUEST)
elif response.status_code == 401:
logging.error("Unauthorized. Please check your API token.")
sys.exit(ec.UNAUTHORIZED_API_TOKEN)
elif response.status_code == 403:
logging.error("Forbidden. Access is denied.")
sys.exit(ec.FORBIDDEN)
elif response.status_code == 404:
logging.error("Not found. The specified URI does not exist.")
sys.exit(ec.NOT_FOUND)
elif response.status_code == 409:
logging.error("Conflict. The resource cannot be saved due to a conflict.")
sys.exit(ec.CONFLICT)
elif response.status_code == 429:
logging.error("Too many requests. You have made too many requests in a short amount of time.")
return True
elif response.status_code == 500:
logging.error("Internal server error. The API experienced an unexpected error.")
return True
elif response.status_code == 503:
logging.error("Service unavailable. The API is temporarily disabled or a request timeout occurred.")
return True
else:
response.raise_for_status()
return False
def fetch_and_cache_entity_data(self):
"""
Fetch and cache data for all entities.
"""
for entity in self.entities:
# if we already have files in the raw data folder, we need to skip that entity
file_path = f'data/raw/{entity}'
if os.path.exists(file_path) and os.listdir(file_path):
logging.warning(f"Skipping entity: {entity} as the raw data folder is not empty.")
continue
logging.warning(f"Raw data exists for {entity} processing any raw data we already have.")
break # break here instead of continue as we dont want to update our server knowledge cache and potentially miss data.
last_knowledge = self.knowledge_cache.get(entity, 0)
logging.debug(f'Last Knowledge of {entity.capitalize()}: {last_knowledge}')
url = f'{self.base_url}/{self.budget_id}/{entity}'
if last_knowledge:
logging.info(f'Fetching {entity} data since last knowledge: {last_knowledge}')
url = url + f'?last_knowledge_of_server={last_knowledge}'
#logging.debug(f'Last Knowledge of {entity}: {last_knowledge}')
logging.info(f'Fetching {entity} data since last knowledge: {last_knowledge}')
url = f'{self.base_url}/{self.budget_id}/{entity}?last_knowledge_of_server={last_knowledge}'
response = requests.get(url, headers=self.headers)
if response.status_code == 401:
logging.error("Unauthorized. Please check your API token.")
sys.exit(ec.UNAUTHORIZED_API_TOKEN)
if self.check_rate_limit(response):
break
for attempt in range(self.MAX_RETRIES):
try:
response = requests.get(url, headers=self.headers)
should_retry = self.handle_response(response)
if not should_retry:
break # Exit the loop if the request is successful
except requests.exceptions.RequestException as e:
logging.error(f"Error fetching {entity} data (attempt {attempt + 1}/{self.MAX_RETRIES}): {e}")
if attempt < self.MAX_RETRIES - 1:
time.sleep(self.RETRY_DELAY) # Wait before retrying
else:
logging.error("Max retries reached. Exiting.")
sys.exit(ec.REQUESTS_ERROR)
data = response.json()
server_knowledge = data['data'].get('server_knowledge')
logging.debug(f'{entity.capitalize()} Server Knowledge: {server_knowledge}')
logging.debug(f'{entity} new server knowledge: {server_knowledge}')
if server_knowledge is not None and server_knowledge != last_knowledge:
self.update_server_knowledge_cache(entity, server_knowledge)
@@ -116,3 +166,6 @@ class Ingest:
self.save_entity_data_to_raw(entity, entity_data)
else:
logging.info(f"No new data for {entity}. Skipping cache update.")
if self.check_rate_limit(response):
break # break out here and continue processing the data we have.