Apollo Server + mongoose, passing createdBy, updatedBy to every update/insert/delete operation - node.js

Question

I am trying to pass createdBy and updatedBy information to every query with mongoose. Is there any way to do this using middlewares with express and/or Apollo Graphql?
I then will use mongoose.set to send debug information to our logging server.

Answer 1

I managed to solve this using AsyncLocalStorage implementation.
this is my threadContext implementation
const { AsyncLocalStorage } = require('async_hooks');
const localStorage = new AsyncLocalStorage();
const contextInit = {
user: null,
environment: process.env.DEPLOYMENT_ENV || 'local',
sourceCompany: undefined,
};
const getContext = () => localStorage.getStore();
const initializeContext = (additionalContext) => localStorage.enterWith({ ...contextInit, ...additionalContext });
const updateContext = (context) => {
Object.keys(context).forEach((k) => {
localStorage.getStore()[k] = context[k];
});
};
module.exports = {
getContext,
contextInit,
initializeContext,
updateContext,
};
then, I injected middleware to initialize the context to express
const { initializeContext: initializeThreadContext } = require('./services/threadContext');
const RequestId = require('./helpers/expressRequestId');
app.use(RequestId()); <<-- feel free to write your own
app.use((req, res, next) => {
initializeThreadContext({ requestId: req.id });
next();
});
In apollo server context to store user data
// include user in threadContext
threadContext.getContext().user = user ? { _id: user._id, name: user.name } : undefined;
then in mongoose, I am logging our queries with user data
mongoose.set('debug', (collectionName, methodName, query, doc, ...methodArgs) => {
const ignoredMethods = [/createIndex/, /watch/];
if (ignoredMethods.some((m) => new RegExp(m).test(methodName))) return;
logger.debug(`Mongodb operation '${methodName}' on '${collectionName}'`, {
collectionName,
methodName,
query,
...threadContext.getContext(),
});
});
I preferred not to store user info with createdBy instead logged it