An example of how to create a PowerShell based HTTP request based Azure Function

QueueTrigger.ps1

# Get input and output params (as named in our function.json)
$result = $Env:res
$requestPath = $env:req
$executionPath = Split-Path -parent $PSCommandPath
$tempPath =  Split-Path -parent $env:req

# Read the input from file and parse it to an object
[Console]::WriteLine("Reading input from $env:req")
$requestObj = get-content $requestPath  | out-string | convertfrom-json

# Manipulate our input a bit to create an output string
$output = "Hello {0} {1}" -f $requestObj.FirstName, $requestObj.LastName

# Let's try writing it to a file, because we can!
$filePath = "$env:temp\test.txt"
Set-Content $filePath -Value $output
[Console]::WriteLine("Reading data from $filePath `r`n`t'$(get-content $filePath)'")

# Finally let's output it
$output | Out-File -Encoding Ascii $result

Example execution: