PowerShell script to create a Visual Studio Solution that contains an Azure Function app project and an Azure Function.

CreateFunctionAppVsSolution.ps1

# CreateFunctionAppVsSolution.ps1
#
# PowerShell script to create a Visual Studio Solution that contains
# an Azure Function app project, and an Azure Function.
#
# Uses:
# - .NET CLI
#   See https://docs.microsoft.com/en-us/dotnet/core/tools/
# - Azure Functions Core Tools
#   See: https://docs.microsoft.com/en-us/azure/azure-functions/functions-run-local?tabs=windows%2Ccsharp%2Cbash
#

Write-Host
Write-Host "CreateFunctionAppVsProject"

$ErrorActionPreference = "Stop"

# Configure variables.
# Configure the names to be used by this script.
# Information about the supported Function Template Names can be found at:
# https://docs.microsoft.com/en-us/azure/azure-functions/functions-run-local?tabs=windows%2Ccsharp%2Cbash#create-func
# Template names are all related to trigger types.

$vsSolutionName = "AzureFunctionApp3.1Sample"
$functionAppVsProjectName = "FunctionApp"
$functionName = "HttpTriggeredFunction"
$functionTemplateName = "HTTP trigger"

Write-Host
Write-Host "Configured Variables:"
Write-Host "vsSolutionName : $vsSolutionName"
Write-Host "functionAppVsProjectName : $functionAppVsProjectName"
Write-Host "functionName : $functionName"
Write-Host "functionTemplateName : $functionTemplateName"

# Create the VS solution folder.
New-Item -Path . -Name $vsSolutionName -ItemType "directory"

$vsSolutionPath = [System.IO.Path]::GetFullPath((Join-Path -Path . -ChildPath $vsSolutionName))

Set-Location -Path $vsSolutionPath

# Create the VS Solution.
# It is given the same name as the current directory.
dotnet new sln

# Create the Function App VS project.
func init $functionAppVsProjectName --worker-runtime dotnet
	
# Add the Function App VS project to the VS solution.
dotnet sln add "$functionAppVsProjectName\$functionAppVsProjectName.csproj"

$functionAppPath = Join-Path -Path $vsSolutionPath -ChildPath $functionAppVsProjectName

Set-Location -Path $functionAppPath

# Create the Function (.cs file) in the Function App project.
# https://docs.microsoft.com/en-us/azure/azure-functions/functions-run-local?tabs=windows%2Ccsharp%2Cbash#create-func
func new --name $functionName --template $functionTemplateName --authlevel "anonymous"

# Done.
Write-Host
Write-Host "Done."
Write-Host