Patrick Bacon on Atomic Spin

Testing JSON Input/Output in Azure Functions Request Tests

Improve request tests for an Azure Function by serializing/deserializing JSON using the same configuration that the framework would use in production.

Web Apps

Setting Up an Azure Functions Dependency Injection Context for Request Tests

How to configure an Azure Functions dependency injection context for request testing in xUnit, including logging and settings.

React / Redux

A Data Provider Pattern Using React Contexts

An example showing a component that uses a React Context to provide data loaded from an API to other components on the page.

Developer Tools

Holding a Key Down with W3C WebdriverIO

Holding down a modifier key in WebdriverIO using the W3C protocol with Chrome does not work as documented. This post provides a workaround.

Developer Tools

Developing Azure Functions in a Docker Container

An example Dockerfile for creating a container with the necessary .NET and Azure Functions dependencies installed for doing Functions development.

DevOps & System Admin.

Docker for Mac: Overcoming Slow Mounted Volumes with Visual Studio Code

How I'm hosting a development environment, including source code, inside a Docker container and using Visual Studio code to attach and edit the code.

Development Practices

Bake Production Testing into Your Application

Add hooks and displays to your system that can be used to test that a production environment has been configured correctly.

TypeScript

BLOBs with Knex and PostgreSQL

An example of how to use the pg-large-object package with Knex to allow for streaming Large Objects from a PostgreSQL database in a Node.js program.

TypeScript

Discriminated Unions in GraphQL and TypeScript

A brief walkthrough of setting up a discriminated union (or tagged union) type in TypeScript and GraphQL, and how to query/resolve that type.

TypeScript

Wrapping a TypeScript Function for Background Execution

How to write a higher order function in TypeScript that will maintain the original types while passing execution to a background process using workerpool.

TypeScript

Generic Higher-Order Functions in TypeScript

An example of how to write a generic higher order function in TypeScript using the built in type definitions ReturnType and Parameters.

TypeScript

Using an Int Type in TypeScript

An example of creating an Int type in TypeScript, allowing the compiler to catch potential production problems when inserting calculated values into the DB.

Patrick Bacon

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