What is the equivalent of 'head :ok' from Rails in Phoenix?

Question

I want to return a response that has no content (merely headers) like this one

def show
  head :ok
end

Answer 1

You can use Plug.Conn.send_resp/3 with empty body:

# 200 OK
send_resp(conn, 200, "")
send_resp(conn, :ok, "") # same as above
# 401 Unauthorized
send_resp(conn, 401, "")
send_resp(conn, :unauthorized, "") # same as above

send_resp can take the status (second argument) as an integer or one of the supported atoms mentioned here: https://hexdocs.pm/plug/Plug.Conn.Status.html#code/1.