Adrian Hall

Product Architect by day; Open-source developer by night

Because Developers are Awesome - page 9

Recent posts

Handling File Uploads with AWS AppSync

December 18, 2018  9 minute read  

GraphQL does not handle files. It may seem an obvious statement, but it needs to be said. GraphQL does not handle files. It handles structured data. Which isn’t to say that GraphQL does not have a role to play within file handling — just that the upload and download of files needs to be done outside the confines of GraphQL. In this article, I’m going to present one way that you can handle the upload and download of files whereby the URL of the files are presented via GraphQL using AWS AppSy...

Bootstrapping a React Native App: A Comparison

December 10, 2018  7 minute read  

It’s been a while since I have worked on a React Native app. In that time, create-react-native-app (CRNA) has been deprecated, and expo-cli has taken its place as the advised route. There is still react-native init, and Infinite Red has ignite. That is four different ways of bootstrapping a React Native app. Before I continue, let me be clear on what I want: I want to use “best practices” in my app architecture - for state, communication with my AWS-based backend, navigation, and so on. ...

Authentication with AWS Amplify and Android: Fraud Protection and Analytics

November 05, 2018  4 minute read  

This will be an in-depth series on authentication with AWS Amplify. Here are the topics I am going to cover, and I will update each blog with the links as I complete the articles. The basics - a username/password system. Customizing the UI. Authenticating with Facebook. Authenticating with Google. Using third-party authentication providers. Using Time-based One-time passwords (TOTP). Using Biometric authentication. Doing fraud protection and analytics. Over the last seven ...

Authentication with AWS Amplify and Android: Integrating Biometrics

October 29, 2018  8 minute read  

This will be an in-depth series on authentication with [AWS Amplify]. Here are the topics I am going to cover, and I will update each blog with the links as I complete the articles. The basics - a username/password system. Customizing the UI. Authenticating with Facebook. Authenticating with Google. Using third-party authentication providers. Using Time-based One-time passwords (TOTP). Using Biometric authentication. Doing fraud protection and analytics. This is the sevent...

Backend GraphQL: How to trigger an AWS AppSync mutation from AWS Lambda

October 26, 2018  14 minute read  

This blog will explore a technique that opens up a whole new world of possibilities for notifying clients of results within a serverless application. Let’s say you have built a nice mobile and web versions of a chat application that uses a GraphQL API built on top of AWS AppSync. Users authenticate with Amazon Cognito user pools Users table is stored in DynamoDB Changes to the users table are communicated to the app via subscriptions How does the users table get updated? A naive a...

Authentication with AWS Amplify and Android: Integrating TOTP

October 22, 2018  9 minute read  

This will be an in-depth series on authentication with [AWS Amplify]. Here are the topics I am going to cover, and I will update each blog with the links as I complete the articles. The basics - a username/password system. Customizing the UI. Authenticating with Facebook. Authenticating with Google. Using third-party authentication providers. Using Time-based One-time passwords (TOTP). Using Biometric authentication. Doing fraud protection and analytics. Over the last five...

Authentication with AWS Amplify and Android: 3rd Party OIDC Providers

October 15, 2018  10 minute read  

This will be an in-depth series on authentication with [AWS Amplify]. Here are the topics I am going to cover, and I will update each blog with the links as I complete the articles. The basics - a username/password system. Customizing the UI. Authenticating with Facebook. Authenticating with Google. Using third-party authentication providers. Using Time-based One-time passwords (TOTP). Using Biometric authentication. Doing fraud protection and analytics. In the last two ar...

Authentication with AWS Amplify and Android: Google Login

October 08, 2018  8 minute read  

This will be an in-depth series on authentication with [AWS Amplify]. Here are the topics I am going to cover, and I will update each blog with the links as I complete the articles. The basics - a username/password system. Customizing the UI. Authenticating with Facebook. Authenticating with Google. Using third-party authentication providers. Using Time-based One-time passwords (TOTP). Using Biometric authentication. Doing fraud protection and analytics. This is part 4 — a...

Learn to build mobile and web apps with AWS Amplify and Serverless Framework

October 02, 2018  3 minute read  

There has always been a bit of a problem between deploying your backend and then integrating that same backend with your front end code. The front end needs to know where the back end is located. The traditional approach is to create a configuration file for the purpose. But how? The AWS Mobile team created the awsmobile CLI and followed that with the AWS Amplify CLI. These tools are great for new projects. They provide for best practices deployment capabilities on the backend — and automati...

Authentication with AWS Amplify and Android: Facebook Login

October 01, 2018  8 minute read  

This will be an in-depth series on authentication with [AWS Amplify]. Here are the topics I am going to cover, and I will update each blog with the links as I complete the articles. The basics - a username/password system. Customizing the UI. Authenticating with Facebook. Authenticating with Google. Using third-party authentication providers. Using Time-based One-time passwords (TOTP). Using Biometric authentication. Doing fraud protection and analytics. This is part 3 — a...