(C#) OpenAI (ChatGTP) 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.

For more information, see https://platform.openai.com/docs/api-reference/images/create

Chilkat .NET Downloads Chilkat .NET Framework Chilkat for .NET Core

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

Chilkat.Http http = new Chilkat.Http();
bool success;

// 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"
// }

Chilkat.JsonObject json = new 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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";
http.SetRequestHeader("Content-Type","application/json");

Chilkat.HttpResponse resp = http.PostJson3("https://api.openai.com/v1/images/generations","application/json",json);
if (http.LastMethodSuccess == false) {
    Debug.WriteLine(http.LastErrorText);
    return;
}

Chilkat.StringBuilder sbResponseBody = new Chilkat.StringBuilder();
resp.GetBodySb(sbResponseBody);

Chilkat.JsonObject jResp = new Chilkat.JsonObject();
jResp.LoadSb(sbResponseBody);
jResp.EmitCompact = false;

Debug.WriteLine("Response Body:");
Debug.WriteLine(jResp.Emit());

int respStatusCode = resp.StatusCode;
Debug.WriteLine("Response Status Code = " + Convert.ToString(respStatusCode));
if (respStatusCode >= 400) {
    Debug.WriteLine("Response Header:");
    Debug.WriteLine(resp.Header);
    Debug.WriteLine("Failed.");

    return;
}

// 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

string url;
Chilkat.StringBuilder sbLocalFilePath = new Chilkat.StringBuilder();

// Download each image..
http.ClearHeaders();
http.AuthToken = "";

int created = jResp.IntOf("created");
int i = 0;
int count_i = jResp.SizeOfArray("data");
while (i < 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 == false) {
        Debug.WriteLine(http.LastErrorText);
        return;
    }

    i = i + 1;
}