Private/Get-Headers.ps1
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# Function to generate the headers for the API request. function Get-Headers { <# .SYNOPSIS Generates the necessary headers for an API request to Azure OpenAI. .DESCRIPTION This function constructs the headers required for an API request to Azure OpenAI. It retrieves the API key from the specified environment variable and uses it for request authentication. .PARAMETER ApiKeyVariable Specifies the name of the environment variable that stores the API key. This parameter is mandatory. .EXAMPLE Get-Headers -ApiKeyVariable "OPENAI_API_KEY" .OUTPUTS Returns a hashtable of headers for the API request. The headers include "Content-Type" set to "application/json" and "api-key" set to the value of the API key retrieved from the environment variable. .NOTES It's crucial to store the API key securely in an environment variable. The function will throw an error if it can't find the API key in the specified environment variable. .NOTES Author: Wojciech Napierala Date: 2024-04 #> [CmdletBinding()] param ( [Parameter(Mandatory = $true)] [ValidateNotNullOrEmpty()] [string]$ApiKeyVariable, [switch]$Secure ) # Initialize API key variable $ApiKey = $null try { # Check if the API key exists in the user's environment variables if (Test-UserEnvironmentVariable -VariableName $ApiKeyVariable) { # Retrieve the API key from the environment variable if ($secure) { $ApiKey = Get-EnvironmentVariable -VariableName $ApiKeyVariable -Secure } else { $ApiKey = Get-EnvironmentVariable -VariableName $ApiKeyVariable } } } catch { # Throw an error if the API key is not found Write-Error "API key '$ApiKeyVariable' not found in environment variables. Please set the environment variable before running this script." Show-Error -ErrorVar $Error[0] return $null } # Return the headers for the API request return @{ "Content-Type" = "application/json; charset=utf-8" "api-key" = $ApiKey 'OpenAI-Debug' = 'true' } } |