TheAngryByrd

#r "nuget: FSharp.Compiler.Service, 43.8.300"

open FSharp.Compiler.Syntax
open FSharp.Compiler.SyntaxTrivia
open FSharp.Compiler.Xml
open FSharp.Compiler.CodeAnalysis
open System.IO

type Node =
    { Data     : Data

akhansari

// 1. pure, don't think about IO at all
module Domain =
    let add x y = x + y

// 2. think about IO but not its implementation
module App =
    let add (getX: unit -> Async<int32>) y =
        async {
            let! x = getX ()
            return Domain.add x y

akhansari

// ========= Event Sourcing in a nutshell

(*
    FriendlyName: string
        Aggregate friendly name.

    Initial: 'State
        Initial (empty) state we will start with.

    Decide: 'Command -> 'State -> 'Event list

jaredpar

using System;
using System.Runtime.CompilerServices;

public class C {
    async async await(await async) => await async;
}

[AsyncMethodBuilder(typeof(builder))]
class async { 
    public awaiter GetAwaiter() => throw null;

ecampidoglio

Checkout Pull Request

A Git alias to quickly check out a Pull Request branch in a single move. ⚡

git config --global alias.cpr '!f() { git fetch --quiet ${GIT_DEFAULT_REMOTE-origin} pull/$1/head:pulls/$1 && git checkout pulls/$1; }; f'

Usage

swlaschin

Architecture

• Use Onion architecture

  • Dependencies go inwards. That is, the Core domain doesn't know about outside layers

• Use pipeline model to implement workflows/use-cases/stories

  • Business logic makes decisions
  • IO does storage with minimal logic
  • Keep Business logic and IO separate

• Keep IO at edges

endofcake

COPY src/*/*.csproj ./
RUN for file in $(ls *.csproj); do mkdir -p ${file%.*}/ && mv $file ${file%.*}/; done

ShalokShalom

+----------------------+--------------------+--------------------+--------------------+
|      Operation       |      F-Sharp       |     Compability    |      Haskell       |
+======================+====================+====================+====================+
| List.append          |         @          |                    |        ++          |
+----------------------+--------------------+--------------------+--------------------+
| Function composition |       f << g       |       f . (g)      |       f . g        |
+----------------------+--------------------+--------------------+--------------------+
|                      |         =          |        ==          |        ==          |
+----------------------+--------------------+--------------------+--------------------+

gusty

+--------------------+--------------------+-------------------------+--------------------+
|Operation           | F#+ / F#           |F#+ Haskell Compatibility|Haskell             |
+====================+====================+=========================+====================+
|List.append         | @                  |                         | ++                 |
+--------------------+--------------------+-------------------------+--------------------+
|Function composition| f << g             | f . (g)                 | f . g              |
+--------------------+--------------------+-------------------------+--------------------+
|                    | <|                 | $                       | $                  |
+--------------------+--------------------+-------------------------+--------------------+

wallymathieu

<Project Sdk="Microsoft.NET.Sdk.Web">
 <PropertyGroup>
   <!-- ...
    based on https://stackoverflow.com/questions/7643615/how-can-i-get-msbuild-to-copy-all-files-marked-as-content-to-a-folder-preservin
    -->
   <WWWRoot>$(ProjectDir)wwwroot</WWWRoot>
 </PropertyGroup>
 <ItemGroup>
   <!-- Specify a file collection WWWRootFiles: -->
   <WWWRootFiles Include="..\wwwroot\**\*.*"></WWWRootFiles>