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Added "Transfer-Encoding:Chunked" support when your content length is unpredictable. #690

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Added "Transfer-Encoding:Chunked" support when your content length is unpredictable. #690

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4c9aca6
ADDED Chunked transfer support to Client.
Oct 9, 2020
1a20816
ADDED New examples about chuncked transfer encoding and download file…
Oct 9, 2020
3ebf205
FIXED Typo error.
Oct 10, 2020
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161 changes: 161 additions & 0 deletions example/chuncked_client.vcxproj
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87 changes: 87 additions & 0 deletions example/chunkedcli.cc
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//
// chunkedcli.cc
//
// Copyright (c) 2019 Yuji Hirose. All rights reserved.
// MIT License
//

#include <httplib.h>
#include <iostream>

#define CA_CERT_FILE "./ca-bundle.crt"

int main(void) {
#ifdef CPPHTTPLIB_OPENSSL_SUPPORT
httplib::SSLClient cli("localhost");
// httplib::SSLClient cli("google.com");
// httplib::SSLClient cli("www.youtube.com");
cli.set_ca_cert_path(CA_CERT_FILE);
cli.enable_server_certificate_verification(true);
#else
httplib::Client cli("localhost", 8080);
#endif

httplib::Headers headers;
httplib::Params params;
size_t stream_size = 0;

httplib::ContentProvider content_provider;
std::ifstream sample_input_file("./ca-bundle.crt", std::ios::in | std::ios::binary);

if (sample_input_file) {
content_provider = [&](size_t offset, size_t length, httplib::DataSink &sink) {
do {
char buffer[CPPHTTPLIB_RECV_BUFSIZ];
sample_input_file.read(buffer, CPPHTTPLIB_RECV_BUFSIZ);
unsigned int readBytes = sample_input_file.gcount();
if (readBytes > 0) {
sink.write(buffer + offset, readBytes);
printf("ContentProvider ==> Written Bytes: %lld\n", sample_input_file.gcount());
}
} while (sample_input_file.gcount() > 0);

sink.done();

return true;
};
}

httplib::ResponseHandler response_handler;
response_handler = [&](const httplib::Response &response) {
printf("ResponseHandler ==> Status: %d\n", response.status);
return true; // return 'false' if you want to cancel the request.
};

httplib::ContentReceiver content_receiver;
std::ofstream sample_output_file("./ca-bundle-downloaded.crt", std::ios::out | std::ios::binary);
if (sample_output_file) {
content_receiver = [&](const char *data, size_t data_length) {
sample_output_file.write(data, data_length);
return true;
};
}

httplib::Progress progress_tracker;
progress_tracker = [](uint64_t len, uint64_t total) {
printf("Progress ===> %lld / %lld bytes (%d%% complete)\n", len, total, (int)(len * 100 / total));
return true; // return 'false' if you want to cancel the request.
};

// It can be a post and patch request.
if (auto res = cli.Put(
"/upload_receiver", headers, params, stream_size, content_provider,
"application/octet-stream", response_handler, content_receiver,
progress_tracker)) {
std::cout << "Cert uploaded and downloaded." << std::endl;
} else {
std::cout << "error code: " << res.error() << std::endl;
#ifdef CPPHTTPLIB_OPENSSL_SUPPORT
auto result = cli.get_openssl_verify_result();
if (result) {
std::cout << "verify error: " << X509_verify_cert_error_string(result) << std::endl;
}
#endif
}

return 0;
}
10 changes: 5 additions & 5 deletions example/client.vcxproj
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Expand Up @@ -22,34 +22,34 @@
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<RootNamespace>client</RootNamespace>
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4 changes: 4 additions & 0 deletions example/download_client.user
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<?xml version="1.0" encoding="utf-8"?>
<Project ToolsVersion="Current" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
<PropertyGroup />
</Project>
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