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"callback" argument must be a function

See original GitHub issue

I’m getting the following error after starting the server:

TypeError: "callback" argument must be a function
    at exports.setTimeout (timers.js:327:11)
    at WebSocketConnection.setKeepaliveTimer (pathToProject/node_modules/websocket/lib/WebSocketConnection.js:215:32)
    at WebSocketConnection.handleSocketData (pathToProject/node_modules/websocket/lib/WebSocketConnection.js:263:10)
    at emitOne (events.js:96:13)
    at TLSSocket.emit (events.js:188:7)
    at readableAddChunk (_stream_readable.js:176:18)
    at TLSSocket.Readable.push (_stream_readable.js:134:10)
    at TLSWrap.onread (net.js:548:20)

I’m using version 6.9.1 of node.

Issue Analytics

State:
Created 7 years ago
Comments:9 (2 by maintainers)

Top GitHub Comments

1reaction

theturtle32commented, Dec 29, 2016

Fixed by #251

1reaction

braytakcommented, Dec 27, 2016

@ibc: a debug run revealed the following and a fix:

WebSocketConnection.handleSocketData calls the object’s setKeepaliveTimerHandler which references the object’s _keepaliveTimerHandler property as the setTimeout function
since the WebSocketConnection constructor function creates the referenced property only in the case where the keepalive and useNativeKeepalive configuration members are set to true' and falserespectively, thesetTimeout` function argument is the undefined.

I got rid of the exception by moving the _keepaliveTimerHandler property definition out of the conditional statement (to right after the _closeTimerHandler property definition).

Cheers

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