Java

OpenAI (ChatGPT) Create Chat Completion

See more OpenAI ChatGPT Examples

Shows how to create a model response for a given chat conversation. 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/chat/completions \
    //    -H "Content-Type: application/json" \
    //    -H "Authorization: Bearer $OPENAI_API_KEY" \
    //    -d '{
    //      "model": "gpt-3.5-turbo",
    //      "messages": [{"role": "user", "content": "Hello!"}]
    //    }'

    //  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.

    //  {
    //    "model": "gpt-3.5-turbo",
    //    "messages": [
    //      {
    //        "role": "user",
    //        "content": "Hello!"
    //      }
    //    ]
    //  }

    CkJsonObject json = new CkJsonObject();
    json.UpdateString("model","gpt-3.5-turbo");
    json.UpdateString("messages[0].role","user");
    json.UpdateString("messages[0].content","Hello!");

    //  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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");
    http.SetRequestHeader("Content-Type","application/json");

    CkHttpResponse resp = new CkHttpResponse();
    success = http.HttpJson("POST","https://api.openai.com/v1/chat/completions",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)

    //  {
    //    "id": "chatcmpl-123",
    //    "object": "chat.completion",
    //    "created": 1677652288,
    //    "choices": [
    //      {
    //        "index": 0,
    //        "message": {
    //          "role": "assistant",
    //          "content": "\n\nHello there, how may I assist you today?"
    //        },
    //        "finish_reason": "stop"
    //      }
    //    ],
    //    "usage": {
    //      "prompt_tokens": 9,
    //      "completion_tokens": 12,
    //      "total_tokens": 21
    //    }
    //  }

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

    int index;
    String Role;
    String Content;
    String finish_reason;

    String id = jResp.stringOf("id");
    String v_object = jResp.stringOf("object");
    int created = jResp.IntOf("created");
    int Prompt_tokens = jResp.IntOf("usage.prompt_tokens");
    int Completion_tokens = jResp.IntOf("usage.completion_tokens");
    int Total_tokens = jResp.IntOf("usage.total_tokens");
    int i = 0;
    int count_i = jResp.SizeOfArray("choices");
    while (i < count_i) {
        jResp.put_I(i);
        index = jResp.IntOf("choices[i].index");
        Role = jResp.stringOf("choices[i].message.role");
        Content = jResp.stringOf("choices[i].message.content");
        finish_reason = jResp.stringOf("choices[i].finish_reason");
        i = i+1;
        }
  }
}