Lianja

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. Lianja

llSuccess = .F.

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

loHttp = createobject("CkHttp")

// 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"
// }

loJson = createobject("CkJsonObject")
loJson.UpdateString("prompt","A cute baby sea otter")
loJson.UpdateInt("n",2)
loJson.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.
loHttp.AuthToken = "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"

loResp = createobject("CkHttpResponse")
llSuccess = loHttp.HttpJson("POST","https://api.openai.com/v1/images/generations",loJson,"application/json",loResp)
if (llSuccess = .F.) then
    ? loHttp.LastErrorText
    release loHttp
    release loJson
    release loResp
    return
endif

loSbResponseBody = createobject("CkStringBuilder")
loResp.GetBodySb(loSbResponseBody)

loJResp = createobject("CkJsonObject")
loJResp.LoadSb(loSbResponseBody)
loJResp.EmitCompact = .F.

? "Response Body:"
? loJResp.Emit()

lnRespStatusCode = loResp.StatusCode
? "Response Status Code = " + str(lnRespStatusCode)
if (lnRespStatusCode >= 400) then
    ? "Response Header:"
    ? loResp.Header
    ? "Failed."
    release loHttp
    release loJson
    release loResp
    release loSbResponseBody
    release loJResp
    return
endif

// 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

loSbLocalFilePath = createobject("CkStringBuilder")

// Download each image..
loHttp.ClearHeaders()
loHttp.AuthToken = ""

lnCreated = loJResp.IntOf("created")
i = 0
lnCount_i = loJResp.SizeOfArray("data")
do while i < lnCount_i
    loJResp.I = i
    lcUrl = loJResp.StringOf("data[i].url")

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

    llSuccess = loHttp.Download(lcUrl,loSbLocalFilePath.GetAsString())
    if (llSuccess = .F.) then
        ? loHttp.LastErrorText
        release loHttp
        release loJson
        release loResp
        release loSbResponseBody
        release loJResp
        release loSbLocalFilePath
        return
    endif

    i = i + 1
enddo


release loHttp
release loJson
release loResp
release loSbResponseBody
release loJResp
release loSbLocalFilePath