One post tagged with "GCP"

$accessToken = (gcloud auth print-access-token)

$apiKey = $env:VERTEX_API_KEY

$projectId   = "your-project-id"
$region      = "us-central1"
$model       = "google/gemini-2.5-flash-lite"
$accessToken = (gcloud auth print-access-token)

$body = @{
    model    = $model
    messages = @(
        @{
            role    = "user"
            content = "What is the population of Tokyo?"
        }
    )
} | ConvertTo-Json -Depth 10

$uri = "https://$region-aiplatform.googleapis.com/v1beta1/projects/$projectId/locations/$region/endpoints/openapi/chat/completions"

$response = Invoke-RestMethod `
    -Uri         $uri `
    -Method      Post `
    -ContentType "application/json" `
    -Headers     @{ Authorization = "Bearer $accessToken" } `
    -Body        $body

$response.choices[0].message.content

$projectId = "your-project-id"
$region    = "us-central1"
$model     = "gemini-2.5-flash-lite"
$apiKey    = $env:VERTEX_API_KEY

$body = @{
    contents = @(
        @{
            role  = "user"
            parts = @(
                @{ text = "What is the population of Tokyo?" }
            )
        }
    )
} | ConvertTo-Json -Depth 10

$uri = "https://$region-aiplatform.googleapis.com/v1/projects/$projectId/locations/$region/publishers/google/models/${model}:generateContent?key=$apiKey"

$response = Invoke-RestMethod `
    -Uri         $uri `
    -Method      Post `
    -ContentType "application/json" `
    -Body        $body

$response.candidates[0].content.parts[0].text

$response.choices[0].message.content  # generated text
$response.usage.total_tokens           # total token count
$response.model                        # model used

$response.candidates[0].content.parts[0].text  # generated text
$response.usageMetadata.totalTokenCount         # total token count
$response.modelVersion                          # model version used

$fullText = ($response | ForEach-Object {
    $_.candidates[0].content.parts[0].text
}) -join ""

$body = @{
    model    = $model
    messages = @(
        @{
            role    = "system"
            content = "You are an AI assistant that responds in Japanese. Answer concisely."
        }
        @{
            role    = "user"
            content = "What is the speed of light?"
        }
    )
} | ConvertTo-Json -Depth 10

$body = @{
    system_instruction = @{
        parts = @(
            @{ text = "You are an AI assistant that responds in Japanese. Answer concisely." }
        )
    }
    contents = @(
        @{
            role  = "user"
            parts = @(@{ text = "What is the speed of light?" })
        }
    )
} | ConvertTo-Json -Depth 10

$body = @{
    model    = $model
    messages = @(
        @{ role = "user";      content = "Do you prefer cats or dogs?" }
        @{ role = "assistant"; content = "I prefer cats." }
        @{ role = "user";      content = "Why is that?" }
    )
} | ConvertTo-Json -Depth 10

$body = @{
    contents = @(
        @{
            role  = "user"
            parts = @(@{ text = "Do you prefer cats or dogs?" })
        }
        @{
            role  = "model"
            parts = @(@{ text = "I prefer cats." })
        }
        @{
            role  = "user"
            parts = @(@{ text = "Why is that?" })
        }
    )
} | ConvertTo-Json -Depth 10