Flask profiler

profiler.py

""" Flask application profiler

Will run the Flask application and log profile data to stdout.

The `restrictions` parameter passed to `ProfilerMiddleware` is used to limit the number of items listed
in the report.
"""
import os

from werkzeug.middleware.profiler import ProfilerMiddleware

from app import create_app

app = create_app(os.getenv("FLASK_ENV"))

app.wsgi_app = ProfilerMiddleware(app.wsgi_app, restrictions=[30])
app.run(debug=True)

Example truncated output

PATH: '/api/v1/test'
         6386 function calls (6234 primitive calls) in 0.025 seconds

   Ordered by: internal time, call count
   List reduced from 645 to 30 due to restriction <30>

   ncalls  tottime  percall  cumtime  percall filename:lineno(function)
       12    0.015    0.001    0.015    0.001 {method 'recv_into' of '_socket.socket' objects}
        1    0.000    0.000    0.000    0.000 {built-in method _socket.getaddrinfo}
        5    0.000    0.000    0.000    0.000 {built-in method pymongo._cmessage._op_msg}
        1    0.000    0.000    0.000    0.000 {method 'readlines' of '_io._IOBase' objects}
     1095    0.000    0.000    0.000    0.000 {built-in method builtins.isinstance}
        1    0.000    0.000    0.000    0.000 {method 'read' of '_io.BufferedReader' objects}