CURLcode
CURLcode is an enumeration type used by the libcurl library to represent the result of a transfer operation. Each member of the CURLcode enum signifies a specific outcome, ranging from successful completion to various error conditions. This allows applications using libcurl to easily check the status of their network requests and handle errors appropriately.
The most common success code is CURLE_OK, indicating that the transfer completed without any issues. Conversely,
Developers typically check the return value of libcurl functions, such as curl_easy_perform, against the CURLcode enum.