fix: allow multiple connections via .startLocalProxy socket (GoogleCloudPlatform#366)

The .startLocalProxy method of starting a local Unix socket to connect over used .once which was an oversight. This only allows a single connection via the socket. For a connection pool to leverage several connections at once we should use .on. Tested using Prisma's connection_limit query argument. Using .once only works with connection_limit=1 while using .on allows for connection_limit=2 etc.

Author: jackwotherspoon

src/connector.ts

@@ -303,9 +303,9 @@ export class Connector {
  console.error(err);
  });
 
- // Once a connection is stablished, pipe data from the
+ // When a connection is established, pipe data from the
  // local proxy server to the secure TCP Socket and vice-versa.
- server.once('connection', c => {
+ server.on('connection', c => {
  const s = stream();
  this.sockets.add(s);
  this.sockets.add(c);