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OpenAI (ChatGPT) Create Image

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Show how to send a POST to create an image. Gets the JSON response with URLs and then downloads images to files. PowerShell

Add-Type -Path "C:\chilkat\ChilkatDotNet47-x64\ChilkatDotNet47.dll"

$success = $false

# This example assumes the Chilkat API to have been previously unlocked.
# See Global Unlock Sample for sample code.

$http = New-Object Chilkat.Http

# Implements the following CURL command:

# curl https://api.openai.com/v1/images/generations \
#   -H "Content-Type: application/json" \
#   -H "Authorization: Bearer $OPENAI_API_KEY" \
#   -d '{
#     "prompt": "A cute baby sea otter",
#     "n": 2,
#     "size": "1024x1024"
#   }'

# Use the following online tool to generate HTTP code from a CURL command
# Convert a cURL Command to HTTP Source Code

# Use this online tool to generate code from sample JSON:
# Generate Code to Create JSON

# The following JSON is sent in the request body.

# {
#   "prompt": "A cute baby sea otter",
#   "n": 2,
#   "size": "1024x1024"
# }

$json = New-Object Chilkat.JsonObject
$json.UpdateString("prompt","A cute baby sea otter")
$json.UpdateInt("n",2)
$json.UpdateString("size","1024x1024")

# Adds the "Authorization: Bearer $OPENAI_API_KEY" header.
# This is NOT a real key.  Change the "sk-vi...." to your own key.
$http.AuthToken = "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"

$resp = New-Object Chilkat.HttpResponse
$success = $http.HttpJson("POST","https://api.openai.com/v1/images/generations",$json,"application/json",$resp)
if ($success -eq $false) {
    $($http.LastErrorText)
    exit
}

$sbResponseBody = New-Object Chilkat.StringBuilder
$resp.GetBodySb($sbResponseBody)

$jResp = New-Object Chilkat.JsonObject
$jResp.LoadSb($sbResponseBody)
$jResp.EmitCompact = $false

$("Response Body:")
$($jResp.Emit())

$respStatusCode = $resp.StatusCode
$("Response Status Code = " + $respStatusCode)
if ($respStatusCode -ge 400) {
    $("Response Header:")
    $($resp.Header)
    $("Failed.")
    exit
}

# Sample JSON response:
# (Sample code for parsing the JSON response is shown below)

# {
#   "created": 1589478378,
#   "data": [
#     {
#       "url": "https://..."
#     },
#     {
#       "url": "https://..."
#     }
#   ]
# }

# Sample code for parsing the JSON response...
# Use the following online tool to generate parsing code from sample JSON:
# Generate Parsing Code from JSON

$sbLocalFilePath = New-Object Chilkat.StringBuilder

# Download each image..
$http.ClearHeaders()
$http.AuthToken = ""

$created = $jResp.IntOf("created")
$i = 0
$count_i = $jResp.SizeOfArray("data")
while ($i -lt $count_i) {
    $jResp.I = $i
    $url = $jResp.StringOf("data[i].url")

    $sbLocalFilePath.SetString("c:/aaworkarea/image_")
    $sbLocalFilePath.AppendInt($i + 1)
    $sbLocalFilePath.Append(".png")

    $success = $http.Download($url,$sbLocalFilePath.GetAsString())
    if ($success -eq $false) {
        $($http.LastErrorText)
        exit
    }

    $i = $i + 1
}