powershell_rest_request_example_with_basic_auth.ps1

$username = $(Get-ChildItem Env:USERNAME).value
$password = $(Get-ChildItem Env:PASSWORD).value

$credentials = "$username`:$password"
$encodedCredentials = `
[System.Convert]::ToBase64String( `
[System.Text.Encoding]::ASCII.GetBytes($credentials))

Invoke-WebRequest `
-Uri https://api.example.com/some/endpoint `
-Headers @{ Authorization = "Basic $encodedCredentials" }

$response = $(Invoke-WebRequest -Uri "$endpoint" -Headers $headers)
$data = $(ConvertFrom-Json -InputObject $response.Content)