A simple script to generate a new dotnet project with a default project hierarchy

New-DotNet.ps1

param(
    [Parameter(Mandatory = $true)]
    [string]$ProjectName,
    [Parameter(Mandatory = $true)]
    [string]$SolutionName,
    [Parameter(Mandatory = $true)]
    [string]$DotNetTemplateName
)

$ErrorActionPreference = "Stop"

Function Get-Gitignore {
    param(
        [Parameter(Mandatory = $true)]
        [string[]]$list,
        [Parameter(Mandatory = $true)]
        [string] $path
    )
    $params = ($list | ForEach-Object { [uri]::EscapeDataString($_) }) -join ","
    Invoke-WebRequest -Uri "https://www.gitignore.io/api/$params" | Select-Object -ExpandProperty content | Out-File -FilePath $(Join-Path -path $path -ChildPath ".gitignore") -Encoding ascii
}

Write-Host "Creating project $SolutionName"

if(Test-Path $SolutionName) {
    Write-Error "Project folder does already exists. $SolutionName"
    exit
}

# Folder structure
mkdir $SolutionName

$ProjectDir = Get-Item .\$SolutionName

mkdir $ProjectDir\src
mkdir $ProjectDir\tests

$SourceDir = Get-Item $ProjectDir\src
$TestsDir = Get-Item $ProjectDir\tests

# Default items
New-Item $ProjectDir\README.md
New-Item $ProjectDir\LICENSE
New-Item $TestsDir\.gitkeep

# .gitignore for visual studio
Get-Gitignore visualstudio $ProjectDir

# dotnet stuff
dotnet new $DotNetTemplateName -n $ProjectName -o $SourceDir\$ProjectName

dotnet new sln -o $ProjectDir\src -n $SolutionName
dotnet sln $SourceDir add $SourceDir\$ProjectName\

dotnet build $SourceDir\$ProjectName

# git
git init $ProjectDir
git -C $ProjectDir\ add .
git -C $ProjectDir\ commit -m "Initial project creation"

#prompt to open the solution
$reply = Read-Host -Prompt "Open solution now? [y/n]"
if ( $reply -match "[yY]" ) { 
    Invoke-Item $SourceDir\$SolutionName.sln
}

Usage:

.\New-DotNet ProjectName SolutionName DotNetTemplate

ProjectName = your project name
DotNetTemplate = the template name for dotnet scaffolding (https://docs.microsoft.com/de-de/dotnet/core/tools/dotnet-new?tabs=netcore21#arguments)
SolutionName = name of the solution

Example:
.\New-DotNet CoolProject.Api CoolProject webapi

Generates: