Fariz Babayev

Software engineer

[Fariz Babayev @SweetTechAZ]

@Ahmed___khaan B. Brute force. Multiple login attempts from different IPs is textbook brute force!

[Fariz Babayev @SweetTechAZ]

@CodeWithAmann AOF logs every write and RDB takes periodic snapshots. Redis is not just a dumb cache!

[Fariz Babayev @SweetTechAZ]

@system_monarch Event sourcing. Stop hammering the same row 10,000 times a second. Append events and aggregate the final state. Much cleaner approach.

[Fariz Babayev @SweetTechAZ]

Centre-backs: 45% WC penalty success vs 67% for strikers. Confidence is task-specific! Great at defending ≠ great under pressure.

[Akintola Steve @Akintola_steve]

Are we saying that, apart from the go-to platforms like Fiverr, Upwork, and maybe Toptal, there aren’t any other reliable platforms for software engineers?

If you know any good ones, drop them below or quote this with your recommendations.

[Fariz Babayev @SweetTechAZ]

@Shra_va_ni Not a dumb question! Your ISP can still see the domain through DNS and SNI in the TLS handshake. HTTPS encrypts what you do on the site, not which site you went to.

[Fariz Babayev @SweetTechAZ]

@gabbytech01 B! Translating domain names to IPs. Without DNS we'd all be memorizing numbers!

[Fariz Babayev @SweetTechAZ]

@kav_kavi11 Idempotency key! That's literally what they exist for. Client sends unique key, server handles the rest.

[Rebs Gaming @Mr_Rebs_]

According to @ChrisAvellone Obsidian will try to "re-pitch" the Avowed sequel “when the dust settles, probably because so much work was already put into it.” #Xbox

[Fariz Babayev @SweetTechAZ]

@krunalbuilds Redis is already in the stack so caching should be ready to go! Scale instances, check DB connection pool limits, throttle non-essential features. 30 min is plenty. Next question please!

[Fariz Babayev @SweetTechAZ]

@Its_Nova1012 Try deleting something from an external drive, that's when the real fun begins

[Fariz Babayev @SweetTechAZ]

@javarevisited System design. Everyone chases new frameworks but if you can't design scalable systems you are replaceable.

[Swarup Das @swarupdcs]

⚛️ Updating State Correctly in React

One of the most common mistakes beginners make is updating state the wrong way.

Understanding how React processes state updates will help you avoid subtle bugs.

❌ Don't mutate state directly

count = count + 1;
or
https://t.co/AaW8WYrkYd = "Alex";

React won't know the state changed, so your UI may not update correctly.

✅ Always use the state setter
setCount(count + 1);
For objects:

setUser({
...user,
name: "Alex",
});

This creates a new state object, allowing React to detect the change and re-render the component.

❗ When the next state depends on the previous state

Avoid this:
setCount(count + 1);
setCount(count + 1);
setCount(count + 1);
You might expect the result to be +3, but it'll often only increment by 1 because each update uses the same stale value.

Instead, use a functional update:

setCount(prev => prev + 1);
setCount(prev => prev + 1);
setCount(prev => prev + 1);
Now the count correctly increases by 3.
🧠 Remember this rule
Use:
setState(newValue);
when you already know the next value.

Use:

setState(prev => /* calculate next state */);

when the new value depends on the previous one.

💡 Key Takeaways

✅ Never mutate state directly
✅ Use the setter returned by useState
✅ Create new objects/arrays instead of modifying existing ones
✅ Use functional updates when calculating the next state from the previous state
React state should be treated as immutable snapshots, not variables you modify directly.
Master this concept, and you'll avoid many of the bugs that trip up React developers.
What's the biggest React state bug you've encountered while learning?

[Fariz Babayev @SweetTechAZ]

@system_monarch That's how hashing works. One-way function turns your password into a hash. They store that not your password. Software engineering 101!

[Fariz Babayev @SweetTechAZ]

@aminnnn_09 Communication! Too many brilliant engineers can't even explain their own work. What's the point?

[Fariz Babayev @SweetTechAZ]

@saloniiio B. Anyone can grind leetcode. Try debugging production at 3am then talk to me

[Dr Iretioluwa Akerele @ireteeh]

Opportunity 👇🏾

[Oman News Agency @ONA_eng]

The National Center for Financial Information signs a memorandum of understanding with Malaysia’s Financial Intelligence Unit on the sidelines of Egmont Group's plenary meeting held in Baku, Republic of Azerbaijan.

https://t.co/bpgGG51fdJ

[Fariz Babayev @SweetTechAZ]

@Sanjiv_vk Honestly if this caught candidates off guard that says a lot! Row-level lock or optimistic locking, that's day one stuff!

[Fariz Babayev @SweetTechAZ]

@yashmp2004 Because 'delete' just means 'mark as deleted' in most databases. Nothing is ever truly gone!