sub post {
    my ($self, $text) = @_;
    my $ua     = $self->{'auth'}->user_agent;
    my $token  = $self->{'auth'}->access_token;
    my $header = {
        'Authorization:'             => 'Bearer ' . $token->{'access_token'},
        'X-Restli-Protocol-Version:' => '2.0.0',
        'Content-type:'              => 'text/json',
    };

    my $user = $self->get_id;
    my $json = {
        'owner'     => "urn:li:person:$user",
        'text'      => {
            'text'  => $text,
        },
    };
    
    $ua->default_header('Content-type' => 'text/json');
    return $ua->post(
        $self->{'auth'}->api_url_base . 'shares',
        Content => encode_json($json),
        $header,
    );
}