Adding req object to Kue job - node.js

Question

Been hunting the internet trying to find an answer to why the following doesn't work.
I am trying to pass in the req object when I add the job so that I have access to it when the job is processed.
But the process is never executed when the whole req object is passed to job.data. Yet I can pass parts of the req object.
What I'm trying to do maybe anti-pattern and a big no no. But, I am trying to understand why it won't work. It seems strange that it just continues without any error.
Below is an example, hopefully it is clear.
My kue is abstracted into a separate file, and initialised onto app.locals.Q as follows:
// Q.js
class Q {
constructor(options) {
this.q = kue.createQueue(options)
}
addJob = (name, data) => {
return Queue.create({
queue_job: name,
queue_route: data.route,
queue_user: data.user,
queue_added: new Date(),
})
.then(response => {
this.q.create(name, {
id: response.get('queue_id'),
route: data.route,
request: data.request
})
.save();
return Promise.resolve(response);
})
.catch(error => {
return Promise.reject(error);
});
processJob = (name, work, options = {}) => {
const {concurrency} = options;
this.q.process(name, concurrency || 1, (job, done) => {
const {data: {id, route, request}} = job;
Queue.update({
queue_running: true
}, {
where: {
queue_id: id
}
})
.then(() => {
if (process.env.NODE_ENV !== 'production') {
console.log(`running job ${id} from ${route}`);
}
return new Promise((resolve, reject) => {
return work(resolve, reject, request);
});
})
.then(results => {
return Queue.update({
queue_running: false,
queue_completed: new Date(),
queue_results_path: results || null
}, {
where: {
queue_id: job.data.id
}
});
})
.then(() => {
if (process.env.NODE_ENV !== 'production') {
console.log(`completed job ${id} from ${route}`);
}
done();
})
.catch((error) => {
if (process.env.NODE_ENV !== 'production') {
console.log(`failed job ${id} from ${route}`);
console.log(error);
}
Queue.update({
queue_running: false,
queue_error: `${error}`
}, {
where: {
queue_id: id
}
})
.then(() => {
done(error);
})
.catch(err => {
console.error(err);
done(err);
});
});
});
};
};
// example route
queue = (req, res) => {
const {locals: {Q}} = req.app;
Q.addJob('foo', {
route: req.path,
user: req.user.get('username'),
request: req
})
.then(queue_id => {
Q.processJob('foo', (resolve, reject, request) => {
console.log(request)
resolve('complete')
})
res.json({sucess: true})
})
}

Answer 1

redis can't serialize the req object.
kue simply silently fails.