node debugging via inspector api
var http = require('http') | |
// Expectation: When I curl localhost:3000, I want to be able to | |
var server = http.createServer(function (req, res) | |
res.statusCode = 200; | |
res.write(e.stack); // throws exception | |
res.end() | |
}) | |
// Goal: I'm trying to log the fn params when the exception is thrown. | |
// Problem: | |
// 1) I can't use session.connect AND inspector.open() | |
// 2) Even using session.post I'm unable to pause the Debugger on the uncaught exception | |
server.listen(3000, function () { | |
console.log('listening on port 3000') | |
const inspector = require('inspector'); | |
// inspector.open(); // can't use this and session.connect() or Sigabort happens | |
var session = new inspector.Session() | |
session.connect(); | |
// this logs as empty array when process crashes | |
session.on('Debugger.paused', ({ params }) => { | |
console.log('hitBreakpoints', params.hitBreakpoints); | |
}); | |
// this seems to work fine | |
session.post('Runtime.evaluate', { expression: '2 + 2' }, | |
(error, { result }) => console.log('result', result)); | |
// doesn't appear to do anything | |
session.post('Debugger.enable', {}, | |
(error, { result }) => { | |
console.log('debugger', result); | |
}); | |
// doesn't appear to do anything | |
session.post('Debugger.setPauseOnExceptions', {state: 'all'}, | |
(error, { result }) => console.log('debugger', result)); | |
}); | |
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