Get-Completion.ps1

function Get-Completion {
    <#  .SYNOPSIS
        Get a text completion from Azure OpenAI Completion endpoint.
    .PARAMETER DeploymentName
        A deployment name should be provided.
    .PARAMETER ResourceName
        A Resource  name should be provided.
    .PARAMETER Prompt
        A prompt name should be provided.
    .PARAMETER Token
        A token name should be provided.                
    .EXAMPLE
        Get-Completion -DeploymentName $DeploymentName -ResourceName $ResourceName -maxtokens 100 -prompt "What is the meaning of life?"
    .NOTES
        Author: Alexander Holmeset
        Twitter: @AlexHolmeset
        Website: https://www.alexholmeset.blog
        Created: 09-02-2023
        Updated: 
        Version history:
        1.0.0 - (09-02-2023) Function created      
    #>[CmdletBinding()]
    param (
        [parameter(Mandatory = $true, HelpMessage = "Your azure openai deployment name")]
        [ValidateNotNullOrEmpty()]
        [string]$DeploymentName,
        [parameter(Mandatory = $true, HelpMessage = "your azure openai resource name")]
        [ValidateNotNullOrEmpty()]
        [string]$ResourceName,
        [parameter(Mandatory = $true, HelpMessage = "Your Azure OpenAI prompt")]
        [ValidateNotNullOrEmpty()]
        [string]$Prompt,
        [parameter(Mandatory = $true, HelpMessage = "Max number of tokens allowed to be used in this request")]
        [ValidateNotNullOrEmpty()]
        [int]$Maxtokens
        )

Process {
    $ErrorActionPreference = "Stop"
    $APIVersion = "2022-12-01"
    # Construct URI
    $uri = "https://$ResourceName.openai.azure.com/openai/deployments/$DeploymentName/completions?api-version=$ApiVersion"
    # Construct Body
    $Body = @"
    {
"prompt": "$Prompt",
"max_tokens": $maxtokens
    }
"@


    try {
        $Global:Request = invoke-restmethod -Method POST -Uri $uri -ContentType "application/json" -Body $body  -Headers $Global:MyHeader

       }
    catch [System.Exception] {
      Write-Warning "Failed to to POST request: $($_.Exception.Message)"; break
    }
    return $Request
    }
}