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api_log_analysis.py
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api_log_analysis.py
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# Sample log line: 106.216.255.173 - - [30/Jul/2023:12:02:03 +0530] "POST /api/v1/admin/get_order_items_by_order_id HTTP/1.0" 200 1055 "-" "okhttp/4.7.2"
import easygui # for importing choice dialog
from datetime import datetime, timedelta
from tkinter import simpledialog # for importing date time picker
from tqdm import tqdm
# Constant variables
RESPONSE_TIME_THRESHOLD = 10 # Set your desired threshold in milliseconds
TIME_ZONE_OFFSET = "+0530" # Set your desired timezone offset, e.g., +0530
TIME_FORMAT = "%d/%b/%Y:%H:%M:%S %z" # Set your desired time format
# Function to choose the log file from local storage
def choose_log_file():
log_file_path = easygui.fileopenbox(
title="Select Log File",
msg="Please select a valid Apache access log file",
)
return log_file_path
def extract_timestamp(log_line):
try:
timestamp_str = log_line.split("[")[1].split("]")[0]
return datetime.strptime(timestamp_str, TIME_FORMAT)
except IndexError:
return None
except ValueError:
return None
def extract_response_time(log_line):
try:
fields = log_line.split()
response_time_str = fields[9]
if response_time_str != '"-"':
return float(response_time_str)
return None
except IndexError:
return None
except ValueError:
return None
log_file_path = choose_log_file() # Choose the log file from local storage
if not log_file_path:
exit(0)
output_file_path = "./api_names_with_response_times.txt"
debug_file_path = "./debug.txt"
# Function to get the time range from the user using choice dialog
def get_time_range():
msg = "Choose the time range for API analysis"
title = "API Analysis Time Range"
choices = ["Yesterday's All Logs", "Custom", "Yesterday 5AM to 12AM"]
choice = easygui.choicebox(msg, title, choices)
if choice == "Custom":
start_time_str = easygui.enterbox(
"Enter the start time (e.g., 26/Jul/2023:12:00:00):",
default="03/Aug/2023:12:00:00",
)
# start_time_str += " +0530" # Add the timezone offset
start_time_str = f"{start_time_str} {TIME_ZONE_OFFSET}"
end_time_str = easygui.enterbox(
"Enter the end time (e.g., 26/Jul/2023:13:00:00):",
default="03/Aug/2023:14:00:00",
)
end_time_str = f"{end_time_str} {TIME_ZONE_OFFSET}"
elif choice == "Yesterday's All Logs":
# set the start date to yesterday 00:00:00, end date to yesterday 23:59:59
yesterday = datetime.now() - timedelta(days=1)
start_time_str = f"{yesterday.strftime('%d/%b/%Y:00:00:00')} {TIME_ZONE_OFFSET}"
end_time_str = f"{yesterday.strftime('%d/%b/%Y:23:59:59')} {TIME_ZONE_OFFSET}"
elif choice == "Yesterday 5AM to 12AM":
yesterday = datetime.now() - timedelta(days=1)
start_time_str = f"{yesterday.strftime('%d/%b/%Y:05:00:00')} {TIME_ZONE_OFFSET}"
end_time_str = f"{yesterday.strftime('%d/%b/%Y:23:59:59')} {TIME_ZONE_OFFSET}"
return start_time_str, end_time_str
start_time_str, end_time_str = get_time_range()
api_response_times = {}
api_hit_count = {}
with open(log_file_path, "r") as log_file, open(debug_file_path, "w") as debug_file:
lines = log_file.readlines()
total_lines = len(lines)
for line in tqdm(lines, total=total_lines, desc="Processing Log"):
fields = line.split()
# Check if the log line has enough fields to extract the response time
if len(fields) >= 12:
response_time = extract_response_time(line)
if response_time is None:
debug_file.write(f" - Invalid response time or missing value\n")
continue
timestamp = extract_timestamp(line)
if timestamp is None:
debug_file.write(f" - Invalid timestamp format , line: {timestamp} \n")
continue
start_time = datetime.strptime(start_time_str, TIME_FORMAT)
end_time = datetime.strptime(end_time_str, TIME_FORMAT)
if start_time <= timestamp <= end_time:
route = fields[6]
api_response_times.setdefault(route, []).append(
(timestamp, response_time)
)
# Increment the hit count for the route
api_hit_count[route] = (
api_hit_count.get(route, 0) + 1
) # get(route, 0): This method is used to retrieve the value associated with the key route from the api_hit_count dictionary. If the key is not present in the dictionary, then the default value 0 is returned.
else:
debug_file.write(
f" - Timestamp {timestamp} is not in the given time range\n"
)
else:
debug_file.write(f"\nInvalid log line: {line.strip()}\n")
# Filter routes with higher response times
routes_with_high_response_times = {
route: max(response_times, key=lambda x: x[1])
for route, response_times in api_response_times.items()
if max(response_times, key=lambda x: x[1])[1] > RESPONSE_TIME_THRESHOLD
}
# Sort routes by response time in descending order
sorted_routes = sorted(
routes_with_high_response_times.items(), key=lambda x: x[1][1], reverse=True
)
print(f"Saving the results in {output_file_path} ...")
# Display or save the results in a separate file
with open(output_file_path, "a") as output_file:
output_file.write(
f"\n\n-------------------Analysis started at: {datetime.now()}-------------------\n"
)
output_file.write(f"Time Range: {start_time_str} to {end_time_str}\n")
output_file.write(f"Response Time Threshold: {RESPONSE_TIME_THRESHOLD} ms\n")
output_file.write("\n\n-------------------API Response Times-------------------\n")
for route, (timestamp, max_response_time) in sorted_routes:
output_file.write(
f"API Route: {route}, Timestamp: {timestamp}, Response Time: {max_response_time} ms\n"
)
output_file.write("\n\n-------------------API Hit Count-------------------\n")
for route, hit_count in sorted(
api_hit_count.items(), key=lambda x: x[1], reverse=True
):
output_file.write(f"API Route: {route}, Hit Count: {hit_count}\n")
print("Done!")