[SOLVED] API PowerShell - you must provide a model parameter

API
1

Hi Guys.

In PowerShell 7.x and code:

$apiEndpoint = “https://api.openai.com/v1/completions”
$apiKey = “sk-APIKEY”
$headers = @{
Authorization = “Bearer $apiKey”
}
$body = @{
model = “text-davinci-003”
prompt = “This is only a test”
}
$response = Invoke-WebRequest -Uri $apiEndpoint -Method POST -Headers $headers -Body $body

I get error message:

{
“error”: {
“message”: “you must provide a model parameter”,
“type”: “invalid_request_error”,
“param”: null,
“code”: null
}
}

I doesn’t seem to matter if $body is hashtable or json.

Any hint/clue would be highly appreciated.
BR,
Marcin

1 Like
2

You could try sending an extra header to tell it the mime type is application/json

And $body has to be json - a hashtable wont work

Can yo ulet me know if it works, so I can add the finished Powershell example to a file of examples I’m compiling for different programming languages

1 Like
3

It works :slight_smile:

$body content piped to JSON
and -ContentType added to Invoke-WebRequest did the job.

$apiEndpoint = “https://api.openai.com/v1/completions”
$apiKey = “sk-APIKEY”

$headers = @{
Authorization = “Bearer $apiKey”
}

$contenttype = “application/json”

$body = @{
model = “text-davinci-003”
prompt = “This is only a test”
} | ConvertTo-Json

$response = Invoke-WebRequest -Uri $apiEndpoint -Method POST -Headers $headers -Body $body -ContentType $contenttype

$generatedText = $response.Content | ConvertFrom-Json
Write-Output $generatedText.choices[0].text

And the output is:
This sentence is only a test. It has no meaning or purpose.

Thanks a lot.

2 Likes
4

Hi There,
The script works well with GPT 3.5 but not with GPT 4 model.

How could you make the working script support GPT-4 model with messages and send a payload that looks like,
"messages": [ { "role": "system", "content": "You are a helpful assistant." }, { "role": "user", "content": "Hello!" } ], "