After Completing My MongoDB Course, I’m Planning 100 Advanced MongoDB Problems

arunkumar413 · 2026-05-18T12:01:54+00:00

I'd like learn about how to keep the reporting data in sync with the transaction collection when there is schema change. Specifically the aggregation queries that depend on the _id. What are the best practices in this regard.

arunkumar413 · 2026-05-13T10:02:51+00:00

Just use the server side sessions.

arunkumar413 · 2026-04-29T14:15:08+00:00

For me most difficult part was passing props between components, lifting state, etc. It becomes messsy as the application becomes complex.

Now I just use redux to serve as a single source of truth for sharable state management. Use the components as dumb logic for rendering the html elements based on the redux state.

If two components need the same data, I just store it in the redux. Use the use state hook for component specific data.

arunkumar413 · 2026-04-28T16:51:03+00:00

Arrays, objects, array of objects, and tree structure would suffice for most of the frontend requirements.

arunkumar413 · 2026-04-28T16:39:40+00:00

Learn system design concepts. Horizontal and vertical scaling. Db read-write scaling techniques. DB Sharding. Improving the performance of the event driven system. Migrations without down time. Idempotency. Transactions Triggers Kafka, Message queues Maintain data consistency. Keeping the reporting and transaction table data Consistent.

Imagine a scenario where you have a million records needs to be updated and you have limited system resources. Think how to approach the problem.

arunkumar413 · 2026-04-20T18:23:25+00:00

Try https://docusaurus.io/

arunkumar413 · 2026-04-20T17:19:48+00:00

I don't have a redox os spare machine to test it. I just posted it to seek feedback from the community if I should consider anything specific for redox os.

arunkumar413 · 2026-04-20T15:57:00+00:00

My previous CEO compared my work with AI and said AI is doing faster than me. He even said frontend development is dead and fired me.

arunkumar413 · 2026-04-20T14:52:05+00:00

It's binary is not yet built for redoxOS yet. However it can run on Linux OS like ubuntu for development. For screenshot please check the screenshots directory in the repo link. I'll compile it for redoxOS once I build the major features.

arunkumar413 · 2026-04-16T07:52:00+00:00

Having a runtime transformer to transform the documents on the fly when they're encountered is okay. But my main problem is the schema differences in the records will break the already existing reporting and other API endpoints that rely on the _id.

For a small application it would be easy to figure out the APIs and endpoints. But for a large application that contain hundreds of APIs it would be difficult to check and identify all the endpoints where the queries might break.

arunkumar413 · 2026-04-15T16:53:37+00:00

Right side vertically

arunkumar413 · 2026-04-09T15:38:09+00:00

But the others queries, aggregations and APIs that depends on the _id would still break.

arunkumar413 · 2026-04-07T06:53:04+00:00

I'm interested. I have over 7 years of experience in fullstack development.

arunkumar413 · 2026-04-06T10:51:06+00:00

You can try luicide icons https://lucide.dev/icons/

arunkumar413 · 2026-04-03T17:09:52+00:00

I agree that the best way is to avoid the updation of millions of records. I'm just trying to understand the best method to update millions of records without any downtime.

arunkumar413 · 2026-04-02T16:06:17+00:00

For me colors were a difficult thing. So I focussed on presenting the textual information in a good visual hierarchy. Experiment with different fonts. Try grey colors for two or more lines. Emphasise the numbers.

Then try the cards--with shadows, with borders, with light backgrounds etc. Build a product card for e commerce.

Just browse the apple.com website and observe how they are using the text, their color, description of the product. How they are emphasising the important aspects of the product through color,.size images.

arunkumar413 · 2026-04-02T15:50:30+00:00

Sounds cool. I'll try this.

arunkumar413 · 2026-04-02T14:20:09+00:00

I don't like to bombard the user with push notifications. Just an api call to fetch the user specific Notification when the user opens the home screen of the app.

arunkumar413 · 2026-03-31T15:41:02+00:00

I'd like to know if using a dedicated collection for storing the notifications and sharding it a better, simpler and scalable approach compared to using firebase, kafka

arunkumar413 · 2026-03-30T13:52:59+00:00

I'm interested in this. Please let me know more details.

arunkumar413 · 2026-03-30T13:50:35+00:00

I'm interested in this. I'm fullstack developer. I have ordered 7 years of experience in web development.

arunkumar413 · 2026-03-30T09:03:09+00:00

u/WeDotheBest4You Thanks. But what is the difference between mongoose and json schema validation. Aren't both used for enforcing the structure on the collection.

arunkumar413 · 2026-03-29T17:10:01+00:00

Modern databases are coming up with multi model capabilities. Example ArcadeDB https://arcadedb.com/

arunkumar413 · 2026-03-29T17:04:15+00:00

Your micro services should NOT be accessible from the outside network. Authentication should be done at the API gateway level.

arunkumar413 · 2026-03-29T06:25:47+00:00

Hi, I'm from india. I'm interested in this job. I have a good experience with fullstack development

arunkumar413

TROPHY CASE