client program always closing

[cache91]

I tried the example code and i find the client program always closing as soon as it start the app

[janvda]

I am getting the same issue: so the connection is immediately closed when I launched the program (FYI node version = v12.6.0) you can see in next log:

Jans-MacBook-Pro:tmp jan$ node patest.js 
Connection closed
Jans-MacBook-Pro:tmp jan$ 

FYI: In order to connect to my pulseaudio server (also running on my macbook) I have made following change to the paclient code (see last 2 lines where I specified config and passed it as parameter to the connect method.

}).on('remove', (type, index) => {
  console.log(`Removed ${type}, index #${index}`);
});
config = { "host" : "127.0.0.1", "port" : 4713 };
pa.connect(config);

The following is logged by my pulseaudio server when launching the pacient program:

I: [] client.c: Created 0 "Native client (TCP/IP client from 127.0.0.1:53838)"
E: [] protocol-native.c: protocol error, kicking client
I: [] client.c: Freed 0 "Native client (TCP/IP client from 127.0.0.1:53838)"

FYI I have activated tcp protocol by uncommenting the following in file /usr/local/Cellar/pulseaudio/13.0/etc/pulse/default.pa

### Network access (may be configured with paprefs, so leave this commented
### here if you plan to use paprefs)
#load-module module-esound-protocol-tcp
load-module module-native-protocol-tcp

[janvda]

I have not only having this issue when connecting to pulseaudio server running locally on my macbook, but I am also having this issue when trying to connect to pulseaudio server running in docker container on a raspberry pi. The following is logged (= same error message)

30.09.19 22:27:21 (+0200)  pulseaudio-server  E: [pulseaudio] protocol-native.c: protocol error, kicking client

So the problem is not due to pulseaudio server running on my macbook.

[janvda]

The protocol error logged by the pulseaudio server are triggered by the following source file (search for protocol_error)

https://gitlab.freedesktop.org/pulseaudio/pulseaudio/blob/master/src/pulsecore/protocol-native.c

[janvda]

Just tested it directly on my raspberry pi (using balena application) and I am getting same problem (so in this case node.js version = v8.16.1):

node-red@ba7c427:/data$ node -v
v8.16.1
node-red@ba7c427:/data$ node patest.js 
/bin/sh: 1: xprop: not found
Connection closed
node-red@ba7c427:/data$ 

The error logged by my pulseaudio server also running in raspberry pi docker container:

01.10.19 20:12:03 (+0200)  pulseaudio-server  E: [pulseaudio] protocol-native.c: protocol error, kicking client

[webispy]

FYI, please refer to my code below (tested in Mac environment.)

const PAClient = require("paclient");
const { readFileSync } = require("fs");

const pa = new PAClient();

const cookiePath = `${process.env.HOME}/.config/pulse/cookie`;
const cookie = Buffer.from(readFileSync(cookiePath, "binary"), "binary");

pa.connect({ host: "127.0.0.1", cookie: cookie });

Pulseaudio install guide:

1. install

brew install pulseaudio

2. change the /usr/local/opt/pulseaudio/homebrew.mxcl.pulseaudio.plist file. (insert a following line to <array>...</array>)

<string>--load=module-native-protocol-tcp</string>

3. register to service (auto-run)

brew services start pulseaudio