Using cURL with C++
A basic example code, but already useful for understanding how it works.
cURL really is an awesome library and in cpp::daily we’re basically going to talk about using it with C++ ! We made a video with lots of details on how to use cURL via the command line and you can see this link: 12 TIPS for you to use the curl COMMAND as a NINJA .
But using it with C++ is a little more arduous task, but possible because many applications are made using cURL .
First of all make sure you have the cURL library installed on your system, examples:
Remember that it’s not the command, it’s the library
Using with C++
There are many particularities in both writing code and compiling. But to keep it simple (because in the future we will have a more detailed video about cURL with C++), I’ll show you a code example that accesses the address: https://gnu.terminalroot.com.br/ip.php that returns access data like: Operating Systems, Browser, Architecture and IP number and we will get it with C++ .
Note that we need to include the header: #include <curl/curl.h>
and instantiate the CURL class, we also use the size_t WriteCallback
function to show us the return. Read and analyze the entire code for greater understanding.
Example: vim curl.cpp
And to compile we need to inform the library to the compiler, for example:
If we run ./get-data
we will notice that the output will be with the data informed above, but we can filter and then get our IP address: global
Just with this basic example you can “have fun” with several possibilities!
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