StevenACoffman

import java.util.AbstractMap.SimpleEntry;
import java.util.*;
import java.util.stream.Collectors;
import java.util.stream.Stream;

class Balance {
  String hello = "hello";
  List<String> beginnings = Arrays.asList("[", "(", "{");
  Map<String, String> endingsToBeginnings = Collections.unmodifiableMap(Stream.of(
          new SimpleEntry<>("]", "["),

StevenACoffman

Notes from experienced React developers at Khan Academy and Symphono

Configuring the tooling for React is the biggest hurdle.

create react app is the easiest entry point to getting the tooling correct for a react app. You can eject later if you want advanced configuration.

npm install -g create-react-app

StevenACoffman

Browser Type	Clean	Clean	Suspect	Suspect
PerimeterX Mode	Monitor	Blocking	Monitor	Blocking
Excelsior Restarts	1	1?	2	3(+?)
PerimeterX Restarts	0	0?	1	0

StevenACoffman

These were some of the most work relevant talks that have publicly available presentaiton materials

Event Driven Architecture / Event Sourcing / CQRS / DDD

• A Crash Course on Building Microservice-based Architectures
• Fat Controller CQRS Diet
• Event Driven Architecture (Linked from above)

Lambda

• Building Serverless Applications in AWS Workshop
• Building “serverless” software with AWS Lambda

StevenACoffman

Event Sourcing/CQRS/DDD vs. Stream processing at scale

	Enterprise SW		Internet Companies
biggest problem:	complexity of domain	biggest problem:	volume of data
leads to:	business logic	leads to:	complexity of data infrastructure
solution:	Event Sourcing	solution:	Stream Processing

From Martin Kleppman's Event Sourcing and Stream Processing at Scale from Domain-Driven Design Europe 2016 presentation

Stream Processing, Event Sourcing, Reactive, CEP... and making sense of it all

StevenACoffman

#!/usr/bin/env python
import boto3
from datetime import datetime
import json
import sys
import re


def json_serial(obj):
    """JSON serializer for objects not serializable by default json code"""

StevenACoffman

#!/bin/bash
# expects the lambda function .py file to be in the same directory as this script.
# based off of Amazon's official documentation:
# http://docs.aws.amazon.com/lambda/latest/dg/with-s3-example-deployment-pkg.html#with-s3-example-deployment-pkg-python
# get the lambda function
lambda_func_file=$1
lambda_func="${lambda_func_file%.*}"
# exit if no file specified
[[ -z "$1" ]] && { echo "Lambda function is empty" ; exit 1; }
# generate a deployment timestamp

StevenACoffman

#!/usr/bin/env python
import argparse
import logging
try:
    from urllib import splittype
except ImportError:
    from urllib.parse import splittype

import boto3

StevenACoffman

#!/usr/bin/env python
import argparse
import boto3
import fnmatch
import json
import logging
import re

from collections import OrderedDict
from datetime import datetime

StevenACoffman

#!/usr/bin/env python
import argparse
import boto3
import fnmatch
import json
import logging
import re

from collections import OrderedDict
from datetime import datetime