PowerBuilder

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. PowerBuilder

integer li_rc
integer li_Success
oleobject loo_Http
oleobject loo_Json
oleobject loo_Resp
oleobject loo_SbResponseBody
oleobject loo_JResp
integer li_RespStatusCode
string ls_Url
oleobject loo_SbLocalFilePath
integer li_Created
integer i
integer li_Count_i

li_Success = 0

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

loo_Http = create oleobject
li_rc = loo_Http.ConnectToNewObject("Chilkat.Http")
if li_rc < 0 then
    destroy loo_Http
    MessageBox("Error","Connecting to COM object failed")
    return
end if

// 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"
// }

loo_Json = create oleobject
li_rc = loo_Json.ConnectToNewObject("Chilkat.JsonObject")

loo_Json.UpdateString("prompt","A cute baby sea otter")
loo_Json.UpdateInt("n",2)
loo_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.
loo_Http.AuthToken = "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"

loo_Resp = create oleobject
li_rc = loo_Resp.ConnectToNewObject("Chilkat.HttpResponse")

li_Success = loo_Http.HttpJson("POST","https://api.openai.com/v1/images/generations",loo_Json,"application/json",loo_Resp)
if li_Success = 0 then
    Write-Debug loo_Http.LastErrorText
    destroy loo_Http
    destroy loo_Json
    destroy loo_Resp
    return
end if

loo_SbResponseBody = create oleobject
li_rc = loo_SbResponseBody.ConnectToNewObject("Chilkat.StringBuilder")

loo_Resp.GetBodySb(loo_SbResponseBody)

loo_JResp = create oleobject
li_rc = loo_JResp.ConnectToNewObject("Chilkat.JsonObject")

loo_JResp.LoadSb(loo_SbResponseBody)
loo_JResp.EmitCompact = 0

Write-Debug "Response Body:"
Write-Debug loo_JResp.Emit()

li_RespStatusCode = loo_Resp.StatusCode
Write-Debug "Response Status Code = " + string(li_RespStatusCode)
if li_RespStatusCode >= 400 then
    Write-Debug "Response Header:"
    Write-Debug loo_Resp.Header
    Write-Debug "Failed."
    destroy loo_Http
    destroy loo_Json
    destroy loo_Resp
    destroy loo_SbResponseBody
    destroy loo_JResp
    return
end if

// 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

loo_SbLocalFilePath = create oleobject
li_rc = loo_SbLocalFilePath.ConnectToNewObject("Chilkat.StringBuilder")

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

li_Created = loo_JResp.IntOf("created")
i = 0
li_Count_i = loo_JResp.SizeOfArray("data")
do while i < li_Count_i
    loo_JResp.I = i
    ls_Url = loo_JResp.StringOf("data[i].url")

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

    li_Success = loo_Http.Download(ls_Url,loo_SbLocalFilePath.GetAsString())
    if li_Success = 0 then
        Write-Debug loo_Http.LastErrorText
        destroy loo_Http
        destroy loo_Json
        destroy loo_Resp
        destroy loo_SbResponseBody
        destroy loo_JResp
        destroy loo_SbLocalFilePath
        return
    end if

    i = i + 1
loop


destroy loo_Http
destroy loo_Json
destroy loo_Resp
destroy loo_SbResponseBody
destroy loo_JResp
destroy loo_SbLocalFilePath