Denil Bhatt

Learning n sharing knowledge of Programming space 📚 every now n then..!! 😉

Follow me 👍 for awesome Programming related content 👨‍💻.

[Denil Bhatt @BhattDenil]

In web2 you write fee logic in your backend.
You pray nobody bypasses it. 🤞

Here? The rule lives in the token itself.
Deploy once. Enforce forever.

Full breakdown of how i built this 👇
https://t.co/wP7yw6csX4

#100DaysOfSolana @solana_devs

[Denil Bhatt @BhattDenil]

Sent 100 tokens to a test wallet.
They got 99.5.

I didn't write any fee logic.
No middleware. No backend check.
The token just... did it.

Day 35 of #100DaysOfSolana 🧵

[Denil Bhatt @BhattDenil]

Then i tried something spicier. 🔥

Made a non-transferable token and tried to send it anyway.
The error: "Transfer is disabled for this mint"

That's not my validation. That's not my API returning a 400.

That's the program log.
The chain said no.

[Denil Bhatt @BhattDenil]

Week 4 lesson:

Read the docs.
Then fetch the account.
Parse the bytes yourself.
Then write about it.

Understanding hits different
when you earn it. 🫡

#100DaysOfSolana #Solana #Web3

[Denil Bhatt @BhattDenil]

Week 4 of #100DaysOfSolana and
Solana broke my brain. Again.

Solana programs don't store
their own data.

And I was like whaaatt? 🧵

[Denil Bhatt @BhattDenil]

So I manually decoded it.

Byte by byte. No shortcuts.

Pulled out:
→ Mint Authority address
→ Total supply
→ Decimals
→ Is Initialized flag

All sitting right there in 82 bytes.

[Denil Bhatt @BhattDenil]

Lost 0.000005 SOL on a failed transaction.
Shouldn't have cost me anything. But it did.

Turns out — Solana transactions aren't API calls. They're job submissions.

Failure still costs. Because failure still took work.

Full breakdown 👇
https://t.co/Wm8W5bQnwH
#100DaysOfSolana

[Denil Bhatt @BhattDenil]

@jh23766311 @MLHacks @solana ikrr
Even I was amazed at knowing my failed txns are also charged

[Denil Bhatt @BhattDenil]

🔗 Tx on Devnet: https://t.co/kDjv6pNurQ

💻 Code: https://t.co/3suC1OdZ72

#100DaysOfSolana #BuildInPublic

[Denil Bhatt @BhattDenil]

Day 21/100 — showing off my Day 18 build.

Built a SOL transfer CLI that shows live confirmation stages:
processed → confirmed → finalized

Most tutorials give you one black-box function.
I wanted to see inside. 🧵#100DaysOfSolana

[Denil Bhatt @BhattDenil]

The part that surprised me most — the blockhash is fetched before signing and baked into the tx itself.

It expires in ~60s. Miss that window = dead transaction.
No retry. No grace period.

Coming from Web2 retry logic... this was a mindset shift

[Denil Bhatt @BhattDenil]

Day 16 of #100DaysOfSolana ✅

Just sent my first deliberate SOL transfer on devnet — no Stripe, no PayPal, no middleman.
Just me, the CLI, and 400ms to settlement 🔥

Solana's account model is wild — new addresses need explicit on-chain creation.

[Denil Bhatt @BhattDenil]

Week 3 starts now.
Still figuring things out.
Documenting all of it.
https://t.co/HCh1yHOFql
#100DaysOfSolana #Solana

[Denil Bhatt @BhattDenil]

I ran one command this week and it changed how I think about writing code.

Week 2 of #100DaysOfSolana — here's the shift that got me 🧵

[Denil Bhatt @BhattDenil]

The shift isn't technical. It's a thinking shift. 🧠

From "carefree" to "calculative" — at every step.

Wrote about the full Week 2 arc here → https://t.co/bHp7bL4ES7