HTTP Error 411. The request must be chunked or have a content length.

my $sender = $cgi->param('sender');
my $nums = $cgi->param('nums');
my $msg = $cgi->param('msg');


my $url = "link";
if ($sender, $nums && $msg) {
my $json = encode_json {
    username    => 'D2028',
    password => '8AEBC',
"'{
    \"to\": $nums,
    \"from\": \"$sender\"
     \"message\": \"$msg\"
}'"
}};


my $response = $http->post( $url => {
    content => $json,
    headers => { 'Content-Type' => 'application/json' },
});

$res = $response->{'content'};

[download]

this is the api

 
curl -X "POST" http://link -H 'username: tttt' -H 'password: ttt' -H "
+Content-Type: application/json" -d '{"to": "444444","from":"Reach","m
+essage":"cURL Message"}'

[download]

In reply to curl post by bigup401

Title:
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