C++:
HTTP-Anfragen mit Basisauthentifizierung senden

#include <iostream>
#include <string>
#include <curl/curl.h>

size_t callback(char* buf, size_t size, size_t nmemb, void* up) {
    for (int c = 0; c < size*nmemb; c++) {
        std::cout << buf[c];
    }
    return size * nmemb;
}

int main() {
    CURL* curl = curl_easy_init();
    if(curl) {
        std::string userAndPassword = "user:password"; // Ersetzen Sie dies durch Ihre echten Anmeldeinformationen.
        std::string authHeader = "Authorization: Basic " + userAndPassword;

        struct curl_slist *headers = nullptr;
        headers = curl_slist_append(headers, authHeader.c_str());

        curl_easy_setopt(curl, CURLOPT_HTTPHEADER, headers);
        curl_easy_setopt(curl, CURLOPT_URL, "http://example.com/protected"); // URL der geschützten Ressource
        curl_easy_setopt(curl, CURLOPT_WRITEFUNCTION, callback);
        
        CURLcode res = curl_easy_perform(curl);
        if(res != CURLE_OK) {
            std::cerr << "CURL error: " << curl_easy_strerror(res) << std::endl;
        }
        curl_slist_free_all(headers);
        curl_easy_cleanup(curl);
    }
    return 0;
}