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Java

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.

Chilkat Java Downloads

Java
import com.chilkatsoft.*;

public class ChilkatExample {

  static {
    try {
        System.loadLibrary("chilkat");
    } catch (UnsatisfiedLinkError e) {
      System.err.println("Native code library failed to load.\n" + e);
      System.exit(1);
    }
  }

  public static void main(String argv[])
  {
    boolean success = false;

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

    CkHttp http = new 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"
    // }

    CkJsonObject json = new CkJsonObject();
    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.put_AuthToken("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");

    CkHttpResponse resp = new CkHttpResponse();
    success = http.HttpJson("POST","https://api.openai.com/v1/images/generations",json,"application/json",resp);
    if (success == false) {
        System.out.println(http.lastErrorText());
        return;
        }

    CkStringBuilder sbResponseBody = new CkStringBuilder();
    resp.GetBodySb(sbResponseBody);

    CkJsonObject jResp = new CkJsonObject();
    jResp.LoadSb(sbResponseBody);
    jResp.put_EmitCompact(false);

    System.out.println("Response Body:");
    System.out.println(jResp.emit());

    int respStatusCode = resp.get_StatusCode();
    System.out.println("Response Status Code = " + respStatusCode);
    if (respStatusCode >= 400) {
        System.out.println("Response Header:");
        System.out.println(resp.header());
        System.out.println("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;
    CkStringBuilder sbLocalFilePath = new CkStringBuilder();

    // Download each image..
    http.ClearHeaders();
    http.put_AuthToken("");

    int created = jResp.IntOf("created");
    int i = 0;
    int count_i = jResp.SizeOfArray("data");
    while (i < count_i) {
        jResp.put_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) {
            System.out.println(http.lastErrorText());
            return;
            }

        i = i+1;
        }
  }
}