whisper_libcurl.cc

#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <curl/curl.h>

int main(void) {
    CURL *curl;
    CURLcode res;

    // Set the API endpoint and the authentication token
    const char *url = "https://api.openai.com/v1/audio/transcriptions";
    const char *token = "your_api_token_here";

    // Set the model to use for transcription
    const char *model = "whisper-1";

    // Set the file path and read its binary data
    const char *file_path = "/home/pranav/test.m4a";
    FILE *fp = fopen(file_path, "rb");
    fseek(fp, 0L, SEEK_END);
    const size_t file_size = ftell(fp);
    rewind(fp);
    char *file_data = static_cast<char*>(malloc(file_size));
    fread(file_data, 1, file_size, fp);
    fclose(fp);

    // Initialize curl
    curl = curl_easy_init();

    if(curl) {
        // Set the headers for the request
        struct curl_slist *headers = NULL;
        headers = curl_slist_append(headers, "Content-Type: multipart/form-data");
        headers = curl_slist_append(headers, "Authorization: Bearer TOKEN");
        headers = curl_slist_append(headers, token);

        // Set the multipart form data
        struct curl_httppost *post = NULL;
        struct curl_httppost *last = NULL;
        curl_formadd(&post, &last, CURLFORM_COPYNAME, "model", CURLFORM_COPYCONTENTS, model, CURLFORM_END);
        curl_formadd(&post, &last, CURLFORM_COPYNAME, "file", CURLFORM_BUFFER, file_path, CURLFORM_BUFFERPTR, file_data, CURLFORM_BUFFERLENGTH, file_size, CURLFORM_END);

        // Set the request options
        curl_easy_setopt(curl, CURLOPT_URL, url);
        curl_easy_setopt(curl, CURLOPT_HTTPHEADER, headers);
        curl_easy_setopt(curl, CURLOPT_HTTPPOST, post);
        curl_easy_setopt(curl, CURLOPT_FOLLOWLOCATION, 1L);

        // Perform the request
        res = curl_easy_perform(curl);

        // Check for errors
        if(res != CURLE_OK) {
            fprintf(stderr, "curl_easy_perform() failed: %s\n", curl_easy_strerror(res));
        }

        // Clean up
        curl_slist_free_all(headers);
        curl_formfree(post);
        curl_easy_cleanup(curl);
        free(file_data);
    }

    return 0;
}