saurabh-hirani

# python3 test_grequests.py

2019-04-14 23:30:41,697 START
2019-04-14 23:30:41,721 Starting new HTTPS connection (1): localhost:8082
2019-04-14 23:30:41,722 Starting new HTTPS connection (1): localhost:8082
2019-04-14 23:30:41,723 Starting new HTTPS connection (1): localhost:8082
2019-04-14 23:30:41,724 Starting new HTTPS connection (1): localhost:8082
2019-04-14 23:30:41,725 Starting new HTTPS connection (1): localhost:8082
2019-04-14 23:30:41,726 Starting new HTTPS connection (1): localhost:8082
2019-04-14 23:30:41,727 Starting new HTTPS connection (1): localhost:8082

saurabh-hirani

#!/usr/bin/env python

from __future__ import print_function

import gevent_openssl
gevent_openssl.monkey_patch()
import grequests
import logging
import urllib3
urllib3.disable_warnings(urllib3.exceptions.InsecureRequestWarning)

saurabh-hirani

#!/bin/bash

cn='example.com'
host="0.0.0.0"
port=8082

openssl genrsa -out /tmp/$cn.key 2048
openssl req -new -x509 -sha256 -key /tmp/$cn.key -out /tmp/$cn.crt -days 3650 \
            -subj "/CN=$cn\/emailAddress=admin@$cn/C=US/ST=Ohio/L=Columbus/O=Widgets Inc/OU=Some Unit"
docker run --rm -e HTTPS_CERT_FILE='/tmp/example.com.crt' -e HTTPS_KEY_FILE='/tmp/example.com.key' -e PORT=$port -p $port:$port -v /tmp:/tmp mccutchen/go-httpbin:v2.1.1

saurabh-hirani

from __future__ import print_function

import requests

url = "https://google.com"
url_count = 10

for i in range(url_count):
  print(requests.get(url, params={'page': i}))

saurabh-hirani

from __future__ import print_function

import grequests

url = "https://google.com"
url_count = 10

pending_requests = []
for i in range(url_count):
  pending_requests.append(grequests.get(url, params={'page': i}))

saurabh-hirani

# Your init script
#
# Atom will evaluate this file each time a new window is opened. It is run
# after packages are loaded/activated and after the previous editor state
# has been restored.
#
# An example hack to log to the console when each text editor is saved.
#
# atom.workspace.observeTextEditors (editor) ->
#   editor.onDidSave ->

saurabh-hirani

def flatten(arr):
  """ 
  Flatten a nested array

  >>> flatten([1, 2, 3])
  [1, 2, 3]

  >>> flatten([1,2,3,[1,2,3]])
  [1, 2, 3, 1, 2, 3]

saurabh-hirani

1. 

- if 10 students took a test and scored the following:

   10 20 30 40 50 60 70 80 90 100

   and the cutoff percentage for a college admission is 90% - how many students got in?

- average does not help - avg = (n * (n + 1)) / 2 = 55 

saurabh-hirani

import sys
import json
import requests

# The following find function is a minor edit of the function posted here
# https://stackoverflow.com/questions/9807634/find-all-occurrences-of-a-key-in-nested-python-dictionaries-and-lists
def find(key, value):
  for k, v in value.iteritems():
    if k == key and not isinstance(v, dict) and not isinstance(v, list):
      yield v

saurabh-hirani

Reading

• https://aws.amazon.com/documentation/gettingstarted/
• https://aws.amazon.com/cli/
• https://www.terraform.io/
• https://blog.gruntwork.io/a-comprehensive-guide-to-terraform-b3d32832baca
• Read about ELB, VPC, subnets, EC2 instances on the AWS site e.g. https://aws.amazon.com/documentation/elastic-load-balancing/

Approach