Be concise.

Be useful.

All contributions dictatorially edited by webmasters to match personal tastes.

Please do not paste any copyright violating resource.

Please try to avoid dependencies to third-party libraries and frameworks.

Other implementations
import "net/http"
response, err := http.Post(u, contentType, body)
auto response = post(u, content);
fetch(u, {
        method: "POST",
	body: JSON.stringify(data)
require "net/http", content)
import "net/http"
import "net/url"
response, err := http.PostForm(u, formValues)
from urllib import request, parse
data = parse.urlencode(<your data dict>).encode()
req =  request.Request(u, data=data, method="POST")
resp = request.urlopen(req)
perl -Mojo -E 'my $u = ""; say p($u)->body;'
use LWP::UserAgent;
# Create a user agent object

my $ua = LWP::UserAgent->new;
# Create a request
my $req = HTTP::Request->new(POST => $u);
# Pass request to the user agent and get a response back
my $res = $ua->request($req);
# Check the outcome of the response
if ($res->is_success) {
    print $res->content;
else {
    print $res->status_line, "\n";
my $response = `curl -X POST $u`;
$ch = curl_init(); 
curl_setopt($ch, CURLOPT_URL, $u); 
curl_setopt($ch, CURLOPT_RETURNTRANSFER, 1); 
curl_setopt($ch, CURLOPT_POST, 1);
$output = curl_exec($ch); 
using System.Net.Http;
new HttpClient().PostAsync(u, content);
import 'package:http/http.dart';
await post(u, body: body, headers: headers);