Getting Started with .NET Core using F# & VsCode debuuger

• Reference: Youtube: Getting Started with .NET Core using F#
• Uses Kestrel web server

Prerequisites

• Install .net core.
• Install a editor. Preferably VS Code
  • If using VS Code, extensions following packages:
    • Ionide-fsharp
    • C#
    • [Optional] Vim (for vim users), vscode-icons (fancy icons)

Build Steps

• Restore packages - dotnet restore
• Build project - dotnet build
• Launch webserver - cd CoreFSharp.Web; dotnet run

Steps to create a project

• Create the top level project directory. We will use CoreFSharp directory for it. It should be same as project name.
  • mkdir CoreFSharp
  • cd CoreFSharp
• Create solution File: dotnet new sln
• Create a mvc subproject:
  • Create the sub-directory first: mkdir CoreFSharp.Web; cd CoreFSharp.Web
  • Initialize sub-project: dotnet new mvc -lang f#
• Reference subproject in solution file: dotnet sln add ./CoreFSharp.Web/CoreFSharp.Web.fsproj
  • Verify it by calling dotnet sln list
  • Rebuild project: dotnet restore; dotnet build
• Create a library sub-project:
  • Create the sub-directory first: mkdir CoreFSharp.Library; cd CoreFSharp.Library
  • Initialize sub-project: dotnet new classlib -lang f#
• Reference subproject in solution file: dotnet sln add ./CoreFSharp.Library/CoreFSharp.Library.fsproj
  • Verify it by calling dotnet sln list
  • Rebuild project: dotnet restore; dotnet build
• Adding subproject dependancy: Add new ItemGroup in CoreFSharp/CoreFSharp.Web.fsproj.

  <ItemGroup>
    <ProjectReference Include="../CoreFSharp.Library/CoreFSharp.Library.fsproj" />
  </ItemGroup>

• Restore, Rebuild: dotnet restore; dotnet build
• Launch web server w/o Debugger: cd CoreFSharp.Web; dotnet run. Note You should launch it from the mvc sub-project.

Debug session

• Launch web server /w Debugger: In VsCode, start debug session with .NET Core Launch (web) (or just press F5).
  • Note: Make sure to set current working directory (cwd in .vscode/launch.json to web sub-project

Extra info

• To check .net core version: dotnet --version
• List subprojects referenced in solution file (execute it from project root directory): dotnet sln list
• Files to be considered in .gitignore: */bin, */obj, *.swp