The ngx_stream_return_module module (1.11.2) allows sending a specified value to the client and then closing the connection.
Example Configuration
server {
listen 12345;
return $time_iso8601;
}
Directives
Syntax:
return value;
Default:
—
Context:
server
Specifies a value to send to the client. The value can contain text, variables, and their combination.