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52 lines
1.4 KiB
C++
52 lines
1.4 KiB
C++
// file_downloader.cc
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// This example downloads a JPG file.
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// NOTE:
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// - The response is streamed to file to avoid comsuming large memory.
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// - A callback is set to be informed about the download progress.
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#include <iostream>
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#include "webcc/client_session.h"
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#include "webcc/logger.h"
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int main(int argc, char* argv[]) {
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if (argc != 3) {
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std::cout << "Usage: file_downloader <url> <path>" << std::endl;
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std::cout << std::endl;
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std::cout << "Examples:" << std::endl;
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std::cout
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<< " $ ./file_downloader http://httpbin.org/image/jpeg ~/test.jpg"
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<< std::endl;
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std::cout << " $ ./file_downloader https://www.google.com/favicon.ico"
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<< " ~/test.ico" << std::endl;
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return 1;
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}
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const char* url = argv[1];
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const char* path = argv[2];
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WEBCC_LOG_INIT("", webcc::LOG_CONSOLE);
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webcc::ClientSession session;
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auto on_progress = [](std::size_t length, std::size_t total_length) {
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if (total_length > 0) { // Avoid dividing zero
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int percent = static_cast<int>(length * 100.0 / total_length);
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std::cout << "Download progress: " << percent << "%" << std::endl;
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}
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};
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try {
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auto r = session.Send(WEBCC_GET(url)(), true, on_progress);
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if (auto file_body = r->file_body()) {
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file_body->Move(path);
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}
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} catch (const std::exception& e) {
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std::cerr << e.what() << std::endl;
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}
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return 0;
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}
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