how to create a HTTPserver / HTTPClient - web-services

Question

I want to understand what kind of server responds to my HTTPClient? is this an ordinary apache HTTP server?
I need to know how i can submit POST via URL form, similar to
http://myserver/post?message=text&submit=send
can you give me some pointers on what to study?
this is a sample C++ HTTPClient code for a micro-controller
HTTPMap map;
HTTPText inText(str, 512);
map.put("Hello", "World");
map.put("test", "1234");
printf("\nTrying to post data...\n");
ret = http.post("http://httpbin.org/post", map, &inText);
if (!ret)
{
printf("Executed POST successfully - read %d characters\n", strlen(str));
printf("Result: %s\n", str);
}
else
{
printf("Error - ret = %d - HTTP return code = %d\n", ret, http.getHTTPResponseCode());
}
And this is the result it returns
Trying to post data...
Executed POST successfully - read 344 characters
Result: {
"headers": {
"Content-Length": "21",
"Content-Type": "application/x-www-form-urlencoded",
"Host": "httpbin.org",
"Connection": "close"
},
"url": "http://httpbin.org/post",
"data": "",
"origin": "<//my IP>",
"args": {},
"form": {
"Hello": "World",
"test": "1234"
},
"json": null,
"files": {}
}

Answer 1

It can be any HTTP server (web server). You can build a stand-alone HTTPServer using any .NET language, but also by writing an ISAPI plugin for ISS, or by installing PHP.
In fact, a normal web server could also be a web service. The difference usually is that a web server serves web pages, while a service serves specialized chunks of information, often not in HTML, but rather in JSON or another format that is more friendly for further processing.
It's mainly a symantic difference, technically there is virtually no difference.