F#: When HttpClient PostAsJsonAsync no longer works

Intro I recently upgraded all of the NuGet packages inside my Visual Studio solution. The result was breaking changes at runtime. Specifically, HttpClient::PostAsJsonAsync was resulting in an empty JSON value. The following HttpClient::PostAsJsonAsync example of such code: use client = httpClient baseAddress let encoded = Uri.EscapeUriString(resource) let! response = client.PostAsJsonAsync(encoded, payload) |> Async.AwaitTask Here are …

Twilio Integration with F#

Intro I decided to document some Twilio integration details for a hobby project that I'm working on. Sms Module Here's the core module for sending an Sms via Twilio: namespace CourierPayroll.DataGateway open Twilio open Twilio.Types open Twilio.Rest.Api.V2010.Account open CourierPayroll.DataTransfer module Sms = let formattedNumber (toPhone:string) = let usaCode = "+1" let phoneWithPrefix = if toPhone.Chars …

Implementing F# inspired Result in C#

Here's a F# inspired Result type implemented in C#: public class Error { public Error(string error) => Value = error; public string Value { get; } } public class Result<T> { readonly string _error; public Result(Error error) => _error = error.Value; public Result(T value) => Value = value; public bool IsSuccessful { get => _error …

Implementing a (FP inspired) Result type in C#

The following is a Result class: Here's a Service class: Here's some tests:

Feature Toggles: Client

Intro I'm totally in love with the concept of feature toggles. To make a long story short, a Feature Toggle is a strategy used for managing continuous delivery. Thus, it's an alternative to branching features which can also be slow and error prone. Domain Model I declared the interface for requesting a feature. Declaring these …

Talking to Bryan about Staying Current

The Nineteen Habits of a Rock Star Developer

Lifestyle 1. Routinely reviews the latest StackOverflow content 2. Listens to software development podcasts 3. Maintains a technical journal 4. Recognizes the value of Job hopping 5. Presents at user groups 6. Maintains a library of software development books 7. Makes an annual pilgrimage to a conference 8. Works on an open-source project 9. Seeks …

Learning to Program with F# (Vol.1)

Specification as a Library (Vol.5)

Intro In the last blog post, I discussed domain event handlers whose sole purpose is to execute side effects for application usefulness. In this blog post, I’ll be discussing file structure and how it relates to specification. File Structure An application can be organized into the following file folders: Domains Integration Specifications Tests Here’s an …

Specification as a Library (Vol.3)

Intro In a previous blog post, I described how to consume a specification as input and in return, output a set of isolated business domains. These business domains will serve as our initial blueprint for constructing the application. The following are the business domains that were extracted from the specification: Access Profile Subscriptions Portfolio These …