curlpp VS restclient-cpp

You need to use a library that does the heavy lifting for you, that stuff is quite complex. You can use a library like libcurl: https://curl.se/libcurl/c/ However that is a C library, and probably it maybe easier for you to use a C++ wrapper around the C library: https://github.com/jpbarrette/curlpp You can also cheat and use the command line tool directly calling it using system, with all the limitations of launching a separate process.

You need to fetch the data from those URLs in order to be able to display them. I'd consider something like curlpp, maybe? That's a C++ wrapper around libcurl.

What does this bring to the table that Curlpp doesn't?

Spotify in C++ is a bit more difficult than normal because it doesn't have an already existing C++ API. Instead, it has an HTTP API, which means you're going to have to write C++ code that sends HTTP requests. You'll probably want to use some variant of cURL to handle sending the HTTP requests.

You could use curlpp https://github.com/jpbarrette/curlpp, which is a c++ wrapper over libcurl’s C API.

Another good one is restclient-cpp.

You just need something to talk to a REST API. There are lots of choices. E.g. https://github.com/mrtazz/restclient-cpp or libcurl if you want something lower level.

https://github.com/mrtazz/restclient-cpp (missing POST Form on main branch. Dev branch very old)

I got insperition from this Rest Client

You can implement restful APIs using CURL or ASIO. For instance, https://github.com/mrtazz/restclient-cpp