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+# example program: a single-request HTTP server
+#   listen for connections from clients on a server socket
+#   when a connection occurs, transfer it to a session socket
+#   read from it using channels
+#   write to it directly
+#
+# After running it, navigate to localhost:8080. Your browser should display
+# "SUCCESS!" and the server will terminate after one connection.
+
+def main [
+  local-scope
+  socket:num <- $open-server-socket 8080/port
+  $print [Mu socket creation returned ], socket, 10/newline
+  return-unless socket
+  session:num <- $accept socket
+  contents:&:source:char, sink:&:sink:char <- new-channel 30
+  sink <- start-running receive-from-socket session, sink
+  query:text <- drain contents
+  $print [Done reading from socket.], 10/newline
+  write-to-socket session, [HTTP/1.0 200 OK
+Content-type: text/plain
+
+SUCCESS!
+]
+  $print 10/newline, [Wrote to and closing socket...], 10/newline
+  session <- $close-socket session
+  socket <- $close-socket socket
+]