Powershell - why is my function returning null?

Question

I have a Powershell script that loads some functions that I have created from a .psm1 file. The .psm1 contains functions that should reutrn a value. All of them work fine apaprt from the example below.

The function generates a url and passes it back but it is always null even though the url is being generated correctly when debugging.

An example:

From the main script I import the .psm1 using the import-module cmdlet and call the following function ($environment variable is set):

Get-ApiUrl $environment

The function it calls is:

function Get-ApiUrl ($environment)
{
    $apiUrl = "https://test$environment.example.com/api/"
    return $apiUrl
}

When this runs the $apiUrl is being set correctly but when returned to the script that called the function it is blank. Does anybody understand what i'm doing wrong?

You don't appear to be using the return value of Get-ApiUrl (as in, $apiUrl = Get-ApiUrl .... — Jeroen Mostert
Perfect! So if I change the initial call to: $apiUrl = Get-ApiUrl $environment it works. The only strange thing is that I do the same as my original post with the next function and it works perfectly. — darren25

darren25 darren25 · Accepted Answer · 2018-06-25T15:24:51

0

votes

Works when changing initial call to $apiUrl = Get-ApiUrl $environment

Powershell - why is my function returning null?

1 Answers