Toshakins

#!/bin/bash

echo "
rdr pass inet proto tcp from any to any port 443 -> 127.0.0.1 port 4443
" | sudo pfctl -ef -

Toshakins

• All inputs should be accessible via keyboard
• Form should be accessible without javascript
• Form should be submitted on 'Enter' hit in a text field.

Toshakins

Schedule

10:00 Stage A
WebVR - The Next Frontier (ENG)
Martin Splitt

11:00 Stage B
Machines Must Suffer (RUS)
Oleksandr Pavlyshch

Toshakins

function sendEmails() {
  var sheet = SpreadsheetApp.getActiveSheet();
  var startRow = 2;  // First row of data to process
  var numRows = 50;   // Number of rows to process
  // Fetch the range of cells A2:B50
  var dataRange = sheet.getRange(startRow, 1, numRows, 2)
  // Fetch values for each row in the Range.
  var data = dataRange.getValues();
  for (i in data) {
    var row = data[i];

Toshakins

class Actions
  def action_a
    puts 'A'
  end

  def action_b
    puts 'B'
  end

  def action_c

Toshakins

class NestedSerializer(Serializer):
  name = CharField()
  ...

class UserSerializer(Serializer):
  user = JSONField(validators=nested_validator)
  ...

def nested_validator(value):
  serializer = NestedSerializer(data=value)

Toshakins

Architectures

Compute as glue

Glue several services together with FaaS. Example: direct S3 upload triggers a function which invokes Rekognition, after that the result is saved by another function to the DynamoDB.

Backends

Literally the architecture that responds to HTTP calls. Youcan organize it in various ways too.

• One function for whole service
• Several functions for the service

Toshakins

import gc
import time

def readable_time():
    return time.strftime('%Y %b %d %H:%M:%S +0000',
                                  time.gmtime(time.time()))

class Timer:
    def __init__(self, scope):
        self.scope = scope or '===='

Toshakins

import asyncio
import concurrent
import threading
from concurrent.futures import as_completed, ThreadPoolExecutor
from itertools import zip_longest
from random import random

async def subwork(i):
    slept = random() % 1
    await asyncio.sleep(slept)

Toshakins

from uuid import uuid4

from django.conf import settings
from django.test import SimpleTestCase
from django.utils.decorators import classproperty


def _generate_record(host, port):
    return {