Providers/Perplexity.ps1
|
<#
.SYNOPSIS Invokes the Perplexity API to generate responses using specified models. .DESCRIPTION The Invoke-PerplexityProvider function sends requests to the Perplexity API and returns the generated content. It requires an API key to be set in the environment variable 'PerplexityKey'. .PARAMETER ModelName The name of the Perplexity model to use (e.g., 'llama-3-sonar-small-32k', 'sonar-medium-online', 'mistral-7b-instruct'). .PARAMETER Messages An array of hashtables containing the messages to send to the model. .EXAMPLE $Message = New-ChatMessage -Prompt 'Write a PowerShell function to calculate factorial' $response = Invoke-PerplexityProvider -ModelName 'sonar-medium-online' -Message $Message .NOTES Requires the PerplexityKey environment variable to be set with a valid API key. API Reference: https://docs.perplexity.ai/reference/post_chat_completions #> function Invoke-PerplexityProvider { param( [Parameter(Mandatory)] [string]$ModelName, [Parameter(Mandatory)] [hashtable[]]$Messages ) $headers = @{ 'Authorization' = "Bearer $env:PerplexityKey" 'content-type' = 'application/json' } $body = @{ 'model' = $ModelName 'messages' = $Messages } $Uri = "https://api.perplexity.ai/chat/completions" $params = @{ Uri = $Uri Method = 'POST' Headers = $headers Body = $body | ConvertTo-Json -Depth 10 } try { $response = Invoke-RestMethod @params return $response.choices[0].message.content } catch { $statusCode = $_.Exception.Response.StatusCode.value__ $errorMessage = $_.ErrorDetails.Message Write-Error "Perplexity API Error (HTTP $statusCode): $errorMessage" return "Error calling Perplexity API: $($_.Exception.Message)" } } |