mrichman

API Gateway: When to Choose Which

Decision Flow

Need real-time/persistent connections?
    → WebSocket API

Need transformations, API keys, usage plans?
    → REST API

mrichman

import os
import time
import shutil
from pathlib import Path
from watchdog.observers import Observer
from watchdog.events import FileSystemEventHandler
import pandas as pd

class ExtensionChangeHandler(FileSystemEventHandler):
    def __init__(self, watch_dir):

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AWSTemplateFormatVersion: '2010-09-09'
Description: Cognito Stack
Parameters:
  AuthName:
    Type: String
    Description: Unique Auth Name for Cognito Resources

Resources:
  # Creates a role that allows Cognito to send SNS messages
  SNSRole:

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#!/bin/bash

# Specify the desired volume size in GiB as a command-line argument. If not specified, default to 20 GiB.
SIZE=${1:-20}

# Get the ID of the environment host Amazon EC2 instance.
INSTANCEID=$(curl http://169.254.169.254/latest/meta-data/instance-id)

# Get the ID of the Amazon EBS volume associated with the instance.
VOLUMEID=$(aws ec2 describe-instances \

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#!/bin/bash
host=$1
user=$2
password=$3

echo '' > $0.queue

databases=$(mysql -h $host -u $user -p$password -e "show databases" -sN | grep -v information_schema | grep -v mysql | grep -v sys)
for database in $databases; do
  for table in $(mysql -h $host -u $user -p"$password" -N -B -e "show tables from \`$database\`"); do

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// Run N workers in a WaitGroup until they complete

package main

import (
	"flag"
	"fmt"
	"os"
	"sync"

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AWSTemplateFormatVersion: "2010-09-09"
Transform: AWS::Serverless-2016-10-31
Parameters:
  BucketName:
    Description: "Region-specific assets S3 bucket name (e.g. ee-assets-prod-us-east-1)"
    Type: String
    Default: "cf-templates-1xnac3rwgtxo7-us-west-2"
  EBSVolumeSize:
    Description: "Size of EBS Volume (in GB)"
    Type: Number

mrichman

<template>
  <div>
    <b-container>
      <b-row align-h="center">
        <div v-if="!signedIn">
          <b-button variant="success" @click="signIn">Sign in with Cognito</b-button>
        </div>
        <div v-if="signedIn">
          <h4>Welcome, {{ username }}!</h4>
          <b-button variant="danger" @click="signOut">Sign out</b-button>

mrichman

Types of graphs used in Math and Statistics - Statistics How To

Understanding AUC - ROC Curve - Towards Data Science

Machine Learning Concepts - Amazon Machine Learning

Use Amazon SageMaker Built-in Algorithms - Amazon SageMaker

Types of ML Models - Amazon Machine Learning

mrichman

const getCellValue = (tr, idx) => tr.children[idx].innerText || tr.children[idx].textContent;
const comparer = (idx, asc) => (a, b) => ((v1, v2) => 
    v1 !== '' && v2 !== '' && !isNaN(v1) && !isNaN(v2) ? v1 - v2 : v1.toString().localeCompare(v2)
    )(getCellValue(asc ? a : b, idx), getCellValue(asc ? b : a, idx));
// do the work...
document.querySelectorAll('th').forEach(th => th.addEventListener('click', (() => {
    const table = th.closest('table');
    Array.from(table.querySelectorAll('tr:nth-child(n+2)'))
        .sort(comparer(Array.from(th.parentNode.children).indexOf(th), this.asc = !this.asc))
        .forEach(tr => table.appendChild(tr) );