Turn Node Debug on/off (call V8 API)

[NikCanvin]

[sam-github]

Note that node has both a legacy (and soon to disappear) "debug" protocol (JSON over TCP, node --debug), and a newer "inspect" protocol (JSON over websockets, node --inspect).

Its the inspect protocol that should be turned on, its what can be used with current Chrome browsers (the TCP protocol has been deleted for a while, and will be gone from node in 8.x, likely).

[mattcolegate]

There is no V8 API for turning debug on and off dynamically. Users are expected to end their Node process and restart it with the --debug or --inspect flags stated above. It might be possible to hook into Node's code that deals with these flags and manipulate them from there, but that is at the C source code level and would take more time than is available (I would probably write my own NPM module to do it!) I'm taking this issue out of scope for the current milestone.

[sam-github]

I'm in process of making (or finding) a node (js or c++) API for turning inspector on/off, finding its UUID, etc.

[sjanuary]

@sam-github feel free to reopen

[sam-github]

@sjanuary I don't have that power, but feel free to give it to me! ;-)

Merged to master: nodejs/node#13228

Also, I found a legacy process._debugBegin(pid) which can be called on your own pid to turn debugging on, but has the downside that there is no way to know what the PORT is (hopefully its the default, but that is not guaranteed).