cmawhorter

Troubleshooting AWS unauthorized errors in lambda requests

This is mainly for node.js but might apply to other environments. Unsure.

If you are running a AWS Lambda function that calls another AWS service and getting an error about invalid tokens or other access denied errors, do this:

Check IAM

The role assigned to your lambda function will need permission to perform the actions. Check IAM and make sure the role has all the permissions.

cmawhorter

  .ma-0,
  .my-0,
  .mt-0 {
    margin-top: 0;
  }

  .ma-q,
  .my-q,
  .mt-q {
    margin-top: .25rem;

cmawhorter

// Simple proxy/forwarding server for when you don't want to have to add CORS during development.

// Usage: node proxy.js
//    Open browser and navigate to http://localhost:9100/[url]
//      Example: http://localhost:9100/http://www.google.com

// This is *NOT* for anything outside local development. It has zero error handling among other glaring problems.

// This started as code I grabbed from this SO question: http://stackoverflow.com/a/13472952/670023

cmawhorter

'use strict';

// Before running, you need to yarn add yargs nodemailer

// And also replace this with your email:
const DEFAULT_TO_EMAIL = '';

// Username password correct? Make sure your smtp provider doesn't 
// have a from/to email address whitelist, or if it does, both emails 
// are on it.

cmawhorter

# http://stackoverflow.com/a/12269225/670023
# Binds to localhost
alias H="echo 'Serving HTTP on 127.0.0.1 port 8000 ...'; python -c 'import BaseHTTPServer as bhs, SimpleHTTPServer as shs; bhs.HTTPServer((\"127.0.0.1\", 8000), shs.SimpleHTTPRequestHandler).serve_forever()'"

cmawhorter

// all the example arns from this page: http://docs.aws.amazon.com/general/latest/gr/aws-arns-and-namespaces.html
var arns = [
	'arn:aws:elasticbeanstalk:us-east-1:123456789012:environment/My App/MyEnvironment', 
	'arn:aws:iam::123456789012:user/David', 
	'arn:aws:rds:eu-west-1:123456789012:db:mysql-db', 
	'arn:aws:s3:::my_corporate_bucket/exampleobject.png', 
	'arn:aws:artifact:::report-package/Certifications and Attestations/SOC/*', 
	'arn:aws:artifact:::report-package/Certifications and Attestations/ISO/*', 
	'arn:aws:artifact:::report-package/Certifications and Attestations/PCI/*', 
	'arn:aws:autoscaling:us-east-1:123456789012:scalingPolicy:c7a27f55-d35e-4153-b044-8ca9155fc467:autoScalingGroupName/my-test-asg1:policyName/my-scaleout-policy', 

cmawhorter

'use strict';

// Script to workaround discrepancies in s3 <=> os file and directory names. 
// It allows you to host your static website on s3 without trailing slashes.  
// e.g. example.com/products and example.com/products/mugs

if (!process.argv[2]) throw new Error('Must pass bucket as argument');

var options = {
  target: '.',

cmawhorter

// snippet for SO: http://stackoverflow.com/a/14138133/670023

// Never do this. Handlers inside of handlers is a Bad Idea regardless of whether they're once or not.

google.maps.event.addListenerOnce(map, 'tilesloaded', function(){
    //this part runs when the mapobject is created and rendered
    google.maps.event.addListenerOnce(map, 'tilesloaded', function(){
        //this part runs when the mapobject shown for the first time
    });
});

cmawhorter

// Very often while building a responsive site with bootstrap, you run into the need
// to have half columns.  

// The accepted solution seems to be wrapping the row in yet-another-row http://stackoverflow.com/a/22986836/670023

// But that's annoying when you just need something to be the correct width at a screen size
// and it won't center.

// This hasn't really been tested but _seems_ to work.

cmawhorter

process.title = 'node http-proxy';

var CONCURRENCY = 250;

var assert = require('assert')
  , crypto = require('crypto')
  , http = require('http');

http.globalAgent.maxSockets = Infinity;