(C++) OpenAI (ChatGTP) Simple Request

See more OpenAI ChatGPT Examples

Demonstrate a simple ChatGPT request with authentication using your OPENAI_API_KEY.

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

Chilkat C/C++ Library Downloads
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#include <CkHttp.h>
#include <CkJsonObject.h>
#include <CkHttpResponse.h>
#include <CkStringBuilder.h>

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

    CkHttp http;
    bool success;

    // 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": "Say this is a test!"}],
    //      "temperature": 0.7
    //    }'

    // 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": "Say this is a test!"
    //     }
    //   ],
    //   "temperature": 0.7
    // }

    CkJsonObject json;
    json.UpdateString("model","gpt-3.5-turbo");
    json.UpdateString("messages[0].role","user");
    json.UpdateString("messages[0].content","Say this is a test!");
    json.UpdateNumber("temperature","0.7");

    // 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 = http.PostJson3("https://api.openai.com/v1/chat/completions","application/json",json);
    if (http.get_LastMethodSuccess() == false) {
        std::cout << http.lastErrorText() << "\r\n";
        return;
    }

    CkStringBuilder sbResponseBody;
    resp->GetBodySb(sbResponseBody);

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

    std::cout << "Response Body:" << "\r\n";
    std::cout << jResp.emit() << "\r\n";

    int respStatusCode = resp->get_StatusCode();
    std::cout << "Response Status Code = " << respStatusCode << "\r\n";
    if (respStatusCode >= 400) {
        std::cout << "Response Header:" << "\r\n";
        std::cout << resp->header() << "\r\n";
        std::cout << "Failed." << "\r\n";
        delete resp;
        return;
    }

    delete resp;

    // Sample JSON response:
    // (Sample code for parsing the JSON response is shown below)

    // {
    //   "id": "chatcmpl-abc123",
    //   "object": "chat.completion",
    //   "created": 1677858242,
    //   "model": "gpt-3.5-turbo-0301",
    //   "usage": {
    //     "prompt_tokens": 13,
    //     "completion_tokens": 7,
    //     "total_tokens": 20
    //   },
    //   "choices": [
    //     {
    //       "message": {
    //         "role": "assistant",
    //         "content": "\n\nThis is a test!"
    //       },
    //       "finish_reason": "stop",
    //       "index": 0
    //     }
    //   ]
    // }

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

    const char *Role = 0;
    const char *Content = 0;
    const char *finish_reason = 0;
    int index;

    const char *id = jResp.stringOf("id");
    const char *v_object = jResp.stringOf("object");
    int created = jResp.IntOf("created");
    const char *model = jResp.stringOf("model");
    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);
        Role = jResp.stringOf("choices[i].message.role");
        Content = jResp.stringOf("choices[i].message.content");
        finish_reason = jResp.stringOf("choices[i].finish_reason");
        index = jResp.IntOf("choices[i].index");
        i = i + 1;
    }
    }