Question 1

How to install curlcpp on Linux?

Accepted Answer

You can compile curlcpp manually using CMake by cloning the repository, running cmake and make in the build directory, then linking with -lcurlcpp and -lcurl. Alternatively, use Homebrew on macOS as mentioned in the README.

Question 2

curlcpp vs cpp-httplib: which is better for C++ HTTP clients?

Accepted Answer

curlcpp is a wrapper around libcurl, offering full libcurl features like multi-transfer support but requires external linking. cpp-httplib is header-only and simpler, but may lack advanced protocols. Choose curlcpp if you need libcurl's capabilities in a C++ interface.

Question 3

How to handle HTTPS requests with curlcpp?

Accepted Answer

curlcpp supports HTTPS through libcurl. Set options like CURLOPT_SSL_VERIFYPEER in the curl_easy object, as shown in the HTTP POST example where SSL verification is disabled for testing purposes.

Question 4

Can curlcpp handle asynchronous HTTP requests?

Accepted Answer

Yes, curlcpp provides a curl_multi class for asynchronous transfers. The example demonstrates performing multiple requests simultaneously and handling them with a loop using get_next_finished() to process results.

Question 5

How to debug errors in curlcpp?

Accepted Answer

curlcpp uses exception-based error handling. Catch curl_easy_exception and use error.what() for the last error or error.print_traceback() for a full stack trace, as illustrated in the try-catch blocks in the examples.

Question 6

Is curlcpp thread-safe?

Accepted Answer

curlcpp relies on libcurl's thread-safety. Generally, curl_easy objects should not be shared between threads without synchronization, but curl_multi can handle concurrent transfers with careful management.

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