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Blogs related to the technology underlying Cork Hounds.

How to Use React Bootstrap Navbar's collapseOnSelect Property With Custom Links

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How to Use React Bootstrap Navbar's collapseOnSelect Property With Custom Links

React Bootstrap provides a convenient, simple and responsive design system, but with a few rough edges. This blog shows you how to get the collapseOnSelect prop to work with both React Router Links and Hash Links.

How to Process an AWS Cognito Authorization Code Grant using AWS Amplify

How to Process an AWS Cognito Authorization Code Grant using AWS Amplify

Most developers that work with AWS Cognito let Amplify process the authorization code grant. However, if you're developing a mobile JavaScript app with Social Sign-On you may need to process the code grant yourself. Here's how...

Enabling Users to Delete Their Own AWS Cognito Accounts

Enabling Users to Delete Their Own AWS Cognito Accounts

Introduction We're using AWS Amplify with AWS Cognito and the Hosted UI to handle Authentication for Cork Hounds. To provide users with the ability to delete their own accounts (along with any/all data that we manage on their behalf), we must interface with Cognito and the Hosted

Upgrading AWS RDS PostgreSQL With Extensions

Upgrading AWS RDS PostgreSQL With Extensions

We recently received an end of support notification for the PostgreSQL database version 9.4 that we were using. As with most things, when it's working you leave it alone, only to realize years later how long it's been. The first emotion I get in situations

Processing Multipart/Form-Data Using API Gateway and a Java Lambda Proxy for Storage in S3

Processing Multipart/Form-Data Using API Gateway and a Java Lambda Proxy for Storage in S3

I am working on a new project for Cork Hounds, and spent some time recently figuring out how to upload files to Amazon Web Services (AWS) Simple Storage Service (S3) using API Gateway as a Lambda Proxy to a Lambda function written in Java. API Gateway can act as a

Part 2: Containerizing and Running Foursquare's TwoFishes with Persistent Storage

Part 2: Containerizing and Running Foursquare's TwoFishes with Persistent Storage

In Part 1 of this two-part series, I looked at Forward and Reverse Geocoding using FourSquare's TwoFishes. I provided some background on TwoFishes, and shared some lessons that I learned on building the geospatial database/indices for forward and reverse geocoding. Building the TwoFishes database/indices takes

Part 1: Forward and Reverse Geocoding using FourSquare's TwoFishes

Part 1: Forward and Reverse Geocoding using FourSquare's TwoFishes

Last year, I created the Amazon Alexa Skill for Cork Hounds which takes a City/State, and responds with the nearest fully dog friendly vineyard. When I first started that project, I re-read Google's Geocoding API terms of service, and confirmed that without a Business/Enterprise account

Changes to our Web and Mobile User Interfaces

Changes to our Web and Mobile User Interfaces

You may have noticed a recent change that we made to our search results having to do with Ratings. If you are curious as to why, this blog is for you. Before, we provided Google Ratings for all search results immediately. Now you will need to click on a search

Migrating from Self-Managed Docker to AWS Elastic Container Service

Migrating from Self-Managed Docker to AWS Elastic Container Service

I recently migrated our four containerized microservices from self managed Docker to AWS ECS. We are adding a lot more vineyards (the addition of California more than doubles the number of vineyards we currently have in our database, and a slew of other states aren't too far behind)

Design and Test Considerations for an AWS Serverless Architecture

Design and Test Considerations for an AWS Serverless Architecture

This post is a companion blog to a recent post on Building a Hybrid Mobile Application with Adobe Phonegap that I published in January. We recently released our Mobile Application on the Apple App Store. To supply the mobile application with a performant, scalable and elastic backend, I decided to

Building a Hybrid Mobile Application with Adobe Phonegap

Building a Hybrid Mobile Application with Adobe Phonegap

This blog has been a long time coming, as I've been working on the Cork Hounds iOS Mobile Application for the better part of 2017. I decided to use Phonegap for several reasons: * Shortened learning curve using basic Javascript, CSS3, Html5 knowledge * Reuse of existing website code and

Coding an Amazon Alexa Skill in Java Using Dialog Directives

Coding an Amazon Alexa Skill in Java Using Dialog Directives

A couple of weeks ago, I decided to look into writing an Amazon Alexa Skill using the Java SDK. Alexa was an early entrant into the voice service market, allowing users to interact with the Amazon Marketplace with only their voice, as well as control smart devices to automate your

Geospatial Queries on AWS DynamoDB

Geospatial Queries on AWS DynamoDB

I'm currently using Postgres/PostGIS for all our Geospatial queries. This works well with our microservices architecture. However, as I build out the backend for our Mobile app architecture using API Gateway and Lambda, I'd prefer not to use AWS RDS. Because I don't

Redirecting HTTP to HTTPS in AWS

Redirecting HTTP to HTTPS in AWS

I wanted an easy way in AWS (e.g. using an Elastic Load Balancer) to rewrite/redirect a URL in Elastic Compute Cloud (EC2) but had to find an alternate solution. Having the ability to do this is useful when you're setting up a website where you want

Building Cork Hounds in the Cloud (A Multi-part Series)

Building Cork Hounds in the Cloud (A Multi-part Series)

Welcome to the first tech blog on our Cork Hounds adventure. While building Cork Hounds has given Peggy and I an excuse to travel in search of dog friendly vineyards with our pups, it has also given me an opportunity to learn about Microservices, Google App Services, Amazon Web Services,