Eric Johnson singledigit

Known on Twitter as @edjgeek. Senior Developer Advocate - Serverless

singledigit / gist:cfcd8bc6a1ed421c6b6b1196f189931d

Created April 5, 2023 15:32

Non-proxy catch all endpoint

	openapi: "3.0.1"
	info:
	title: "vtl-example"
	version: "1.0"
	servers:
	- url: "https://r5aji4fod4.execute-api.us-west-2.amazonaws.com/{basePath}"
	variables:
	basePath:
	default: "/Prod"
	paths:

singledigit / handler.py

Last active February 24, 2023 06:04

boto sigv4 in python with Lambda

	import boto3
	import json
	import requests
	from requests_aws4auth import AWS4Auth

	def lambda_handler(event, context):
	signature = get_signature()
	return fetch(signature)

	def get_signature():

singledigit / README.md

Last active October 22, 2024 20:23

AWS SAM direct integration of API Gateway REST to Amazon SQS

sam deploy --guided

singledigit / Data Source.json

Created May 7, 2021 04:34

AppSync HTTP resolver - StartSyncExecution for StepFunctions express workflows

	{
	"apiId": "xxxxxxxxxxxxxxxxxxxxxxxxxx",
	"name": "sync_step_function",
	"description": "step function test",
	"type": "HTTP",
	"serviceRoleArn": "arn:aws:iam::xxxxxxx:role/appsync-step-function",
	"httpConfig": {
	"endpoint": "https://sync-states.us-east-2.amazonaws.com",
	"authorizationConfig": {
	"authorizationType": "AWS_IAM",

singledigit / Install-AWS-SAM.sh

Last active June 2, 2025 13:19

Install AWS SAM on Linux using the new Linux installer

	curl -L https://github.com/aws/aws-sam-cli/releases/latest/download/aws-sam-cli-linux-x86_64.zip -o aws-sam-cli-linux-x86_64.zip
	unzip aws-sam-cli-linux-x86_64.zip -d sam-installation
	sudo ./sam-installation/install
	where sam
	sam --version

singledigit / get-vars.py

Last active August 26, 2025 14:22

Get all env variables for all AWS Lamda functions in a CloudFormation/SAM stack

	#! /usr/bin/env python

	# Use at your own risk and reward.
	# requires boto3 to be installed
	# example `./get-vars.py MyStack > vars.json`

	import sys, json
	import boto3

	if len(sys.argv) == 1:

singledigit / api.yaml

Created September 24, 2020 17:42

Example of an AWS Lambda Destinations configuration for AWS Lambda functions within an application.

	# You don't need this, but here it is anyways :)
	openapi: "3.0.1"
	info:
	title: "Translation API (Async)"
	version: "1.0.0"

	paths:
	/:
	post:
	summary: Create new translation request

singledigit / template.yaml

Created August 18, 2020 22:06

Creating an EventBridge rule with API Gateway as the target in AWS SAM

	AWSTemplateFormatVersion: '2010-09-09'
	Transform: AWS::Serverless-2016-10-31
	Description: Event Bridge -> API Gateway

	Resources:
	RestApiGateway:
	Type: AWS::Serverless::Api
	Properties:
	StageName: Prod

singledigit / RequestTemplate-vtl.json

Last active November 6, 2020 18:50

Example of using VTL on Amazon API Gateway to insert an epoch time into Amazon DynamoDB to be used as a TTL field

	## This examples converts the millisecond epoch of API Gateway
	## to the seconds epoch of DynamoDB and adds 5 minutes for the TTL.

	#set( $epoch = $context.requestTimeEpoch / 1000 + 300 )
	{
	"TableName":"Epoch",
	"Item":{
	"id":{"S":"$context.requestId"},
	"ttlTime":{"N":"$epoch"}
	}

singledigit / template.yaml

Created August 11, 2020 23:24

Using a DynamoDB CloudFormation resource in a SAM template to add range.