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ุฅุฒุงูŠ ุชุนุฑุถ ุดุบู„ูƒ ูƒู€ Backend DeveloperุŸ
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ุจุชู‚ุนุฏ ุณุงุนุงุช ุชูƒุชุจ ููŠ codeุŒ ุชุจู†ูŠ APIsุŒ ุชุธุจุท ุงู„ู€ AuthุŒ ุชุชุนุงู…ู„ ู…ุน Databases ูˆ Logging ูˆ QueuesุŒ ูˆูƒู…ุงู† ู…ู…ูƒู† ุชูƒูˆู† ุจุชุดุชุบู„ ุนู„ู‰ Microservices ูˆ Event-driven architectureโ€ฆ

ุจุณ ู„ู…ุง ุชูŠุฌูŠ ุชู‚ุฏู… ุนู„ู‰ ุดุบู„ ุฃูˆ ุชุนุฑุถ ุดุบู„ูƒ ู„ุญุฏุŒ ุจุชู‚ู ูˆู…ุด ุนุงุฑู ุชู‚ูˆู„ ุฅูŠู‡...
ุงู„ู…ุดูƒู„ุฉ ู…ุด ุฅู† ุดุบู„ูƒ ู‚ู„ูŠู„ุŒ ุงู„ู…ุดูƒู„ุฉ ุฅู†ูƒ ู…ุด ุนุงุฑู "ุชุนุฑุถู‡" ุจุดูƒู„ ูŠุฎู„ูŠ ุงู„ู„ูŠ ู‚ุฏุงู…ูƒ ูŠุนุฑู ุฎุจุฑุชูƒ ูˆุงู„ู…ุนู„ูˆู…ุงุช ุงู„ู„ูŠ ุนู†ุฏูƒ.

ุงู„ู€ Backend ุฃุตุนุจ ุดูˆูŠุฉ ููŠ ุงู„ู†ู‚ุทุฉ ุฏูŠ ุนู† ุงู„ู€ FrontendุŒ ู„ุฃู† ุงู„ู†ุงุณ ู…ุด ุจุชุดูˆู ุดุบู„ูƒ ุจุนู†ูŠู‡ู…ุŒ ูุฃู†ุช ุงู„ู„ูŠ ู„ุงุฒู… "ุชุฎู„ูŠู‡ู… ูŠุดูˆููˆู‡".

ุชุนุงู„ ุฃู‚ูˆู„ูƒ ุฅุฒุงูŠ ุชุนุฑุถ ุดุบู„ูƒ ูƒู€ Backend Developer ุจุทุฑูŠู‚ุฉ ู…ุญุชุฑู…ุฉ...

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โœจ ุฃูˆู„ ุญุงุฌุฉ: ุฃู†ุช ุจุชุดุชุบู„ ุนู„ู‰ ุฅูŠู‡ุŸ

ุงูƒุชุจ ุงู„ูƒู„ุงู… ุฏู‡ ููŠ ุดูƒู„ ู†ู‚ุงุท ูˆุงุถุญุฉุŒ ูˆุจู„ุบุฉ ุจุณูŠุทุฉ. ุญุงูˆู„ ุชุฌุงูˆุจ ุนู„ู‰ ุงู„ุฃุณุฆู„ุฉ ุฏูŠ:

- ุฅูŠู‡ ู†ูˆุน ุงู„ู€ systems ุงู„ู„ูŠ ุงุดุชุบู„ุช ุนู„ูŠู‡ุงุŸ (E-commerce, CMS, Booking systemโ€ฆ)
- ูƒุงู† ููŠู‡ุง ูƒุงู… userุŸ ุฃูˆ traffic ุนุงู…ู„ ุฅุฒุงูŠุŸ
- ู‡ู„ ูƒุงู†ุช Monolith ูˆู„ุง MicroservicesุŸ
- ู‡ู„ ุงุดุชุบู„ุช ุนู„ู‰ ุญุงุฌุงุช ุฒูŠ Authentication, Payments, NotificationsุŸ
- ู‡ู„ ููŠู‡ Challenges ู…ุนูŠู†ุฉ ุญู„ูŠุชู‡ุงุŸ (scalability, performance, data integrityโ€ฆ)

โœ… ู…ุซุงู„:

ุงุดุชุบู„ุช ุนู„ู‰ ู†ุธุงู… E-commerce ุจูŠุฎุฏู… 200K user ุดู‡ุฑูŠู‹ุงุŒ ุจู†ูŠุช ููŠู‡ REST APIs ุจู€ Node.js ูˆExpressุŒ ูˆุนู…ู„ุช Integration ู…ุน Stripe ู„ู„ู€ payments.

ุณุงู‡ู…ุช ููŠ refactor ู…ู† Monolith ู„ู€ MicroservicesุŒ ูˆุงุดุชุบู„ุช ุนู„ู‰ Service ุฎุงุตุฉ ุจุงู„ู€ Orders ุจุงุณุชุฎุฏุงู… MongoDB ูˆRabbitMQ.

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โœจ ุซุงู†ูŠ ุญุงุฌุฉ: ุชูƒู„ู… ุนู† ู‚ุฑุงุฑุงุชูƒ ุงู„ุชู‚ู†ูŠุฉ

ุจู„ุงุด ุชู‚ูˆู„ "ุงุดุชุบู„ุช ุจู€ Node.js ูˆุฎู„ุงุต"ุŒ ูˆู„ูƒู† ุงุญูƒูŠ ู„ูŠู‡ ุงุณุชุฎุฏู…ุชู‡ุงุŸ
ุฅุฒุงูŠ ุงุฎุชุงุฑุช Database ู…ุนูŠู†ุฉุŸ ู„ูŠู‡ ุงุณุชุฎุฏู…ุช Redis ุฃูˆ KafkaุŸ

ุงู„ู„ูŠ ุจูŠูุฑู‚ ุฃูŠ ุญุฏ ุดุงุทุฑ ู…ุด ุจุณ ุฅู†ู‡ ุจูŠุนุฑู ูŠุณุชุฎุฏู… toolsโ€ฆุฅู†ู…ุง ุจูŠุนุฑู ุฅู…ุชู‰ ูŠุณุชุฎุฏู… ุฅูŠู‡ุŒ ูˆู„ูŠู‡ุŒ ูˆุฅูŠู‡ ุงู„ุจุฏุงุฆู„ ุงู„ู„ูŠ ูƒุงู†ุช ู…ุชุงุญุฉุŸ


โœ… ู…ุซุงู„:

ุงุณุชุฎุฏู…ู†ุง Redis ุนู„ุดุงู† ู†ุนู…ู„ caching ู„ุจูŠุงู†ุงุช ุงู„ู…ู†ุชุฌุงุช ุนุดุงู† ู†ุญู„ ู…ุดูƒู„ุฉ ุงู„ู€ latency ุงู„ุนุงู„ูŠุฉ ููŠ ุงู„ู€ product listing. ุฏู‡ ู‚ู„ู„ ุงู„ู€ response time ุจู†ุณุจุฉ 60%.

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โœจ ุซุงู„ุซ ุญุงุฌุฉ: ุชูƒู„ู… ุจู„ุบุฉ ุงู„ู€ Impact

ุจู„ุงุด ุชู‚ูˆู„ "ุงุดุชุบู„ุช ุนู„ู‰ ูƒุฐุงโ€ฆ"ุŒ ุงู„ู†ุงุณ ุจุชุญุจ ุชุณู…ุน ุงู„ุชุฃุซูŠุฑ - "ุจุณุจุจ ุดุบู„ูŠุŒ ุญุตู„ ูƒุฐุง ูˆูƒุฐุงโ€ฆ"

ุชุชูƒู„ู… ุนู† ุงู„ู†ุชุงุฆุฌ:

- ุงู„ู€ API response time ู‚ู„ ุจู†ุณุจุฉ ูƒุงู…ุŸ
- ูƒู… bug ุงุชุตู„ุญุชุŸ
- ุงู„ู€ revenue ุฒุงุฏุŸ retention ุงุชุญุณู†ุŸ
- ุงู„ู€ system ุจู‚ู‰ ูŠุณุชุญู…ู„ ูƒุงู… request ููŠ ุงู„ุซุงู†ูŠุฉุŸ


โœ… ู…ุซุงู„:

ุนู…ู„ุช ุชุญุณูŠู† ู„ู„ู€ queries ููŠ MySQL ุฎู„ู‘ู‰ ุงู„ู€ checkout process ุฃุณุฑุน ุจู†ุณุจุฉ 40%ุŒ ูˆู‚ู„ู„ ุงู„ู€ cart abandonment ุจู†ุณุจุฉ ู…ู„ุญูˆุธุฉ.

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โœจ ุฑุงุจุน ุญุงุฌุฉ: ุงู„ู€ Showcase ุงู„ุญู‚ูŠู‚ูŠ

- ุงุนู…ู„ repos ุนู„ู‰ GitHub ููŠู‡ุง ู…ุดุงุฑูŠุน ุญู‚ูŠู‚ูŠุฉ (ู…ุด ู…ุดุงุฑูŠุน ุงู„ู€ Hello World)
- ุงุนุฑุถ Postman Collection ุฃูˆ OpenAPI Spec
- ู„ูˆ ุงุดุชุบู„ุช ุนู„ู‰ ุญุงุฌุงุช Open Source ุฃูˆ ุนู†ุฏูƒ Blog ุจูŠุดุฑุญ ุงู„ู„ูŠ ุจุชุนู…ู„ู‡ ู…ู…ูƒู† ุชุถูŠูู‡.

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โœจ ุฎุงู…ุณ ุญุงุฌุฉ: ุฎู„ูŠ ุดุบู„ูƒ "ู…ูู‡ูˆู…" ู„ู„ู†ุงุณ ุงู„ู„ูŠ ู…ุด ููŠ ู†ูุณ ุงู„ุชุฎุตุต

ุฎู„ูŠ ุฏุงูŠู…ู‹ุง ุงู„ุทุฑูŠู‚ุฉ ุงู„ู„ูŠ ุจุชุชูƒู„ู… ุจู‡ุง ุณู‡ู„ุฉุŒ ูˆููŠู‡ุง ุฃุฑู‚ุงู….

ุจุฏู„ ู…ุง ุชู‚ูˆู„:

โ€œBuilt scalable APIs using Node.js.โ€

ู…ู…ูƒู† ุชู‚ูˆู„:

โ€œBuilt RESTful APIs using Node.js to handle 20K+ daily requests, with response time under 200ms.โ€

ุชูƒู„ู… ุนู† ุงู„ูุงุฆุฏุฉุŒ ู…ุด ุจุณ ุงู„ุชูุงุตูŠู„ ุงู„ุชู‚ู†ูŠุฉ.

ุจุฏู„ ู…ุง ุชู‚ูˆู„:

โ€œุงุดุชุบู„ุช ุนู„ู‰ ุชุญุณูŠู† ุงู„ู€ indexing strategy ููŠ MongoDB ุจุงุณุชุฎุฏุงู… compound indexes.โ€

ู…ู…ูƒู† ุชู‚ูˆู„:

โ€œู‚ู„ู„ุช ูˆู‚ุช ุชุญู…ูŠู„ ุตูุญุฉ ุงู„ู…ู†ุชุฌุงุช ู…ู† 5 ุซูˆุงู†ูŠ ู„ุฃู‚ู„ ู…ู† ุซุงู†ูŠุฉ ุจุนุฏ ุชุญุณูŠู† ุงู„ู€ indexing ููŠ MongoDB.โ€

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ูˆูู‚ูƒู… ุงู„ู„ู‡ ู„ูƒู„ ุฎูŠุฑ ๐ŸŒฟ
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๐ŸŽฏ ู„ูŠู‡ ู„ุงุฒู… ุชูƒูˆู† ูุงู‡ู… ุงู„ู€ Business Goal ู‚ุจู„ ู…ุง ุชุจุฏุฃ ุชุดุชุบู„ ุนู„ู‰ ุฃูŠ FeatureุŸ
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ุฅู†ูƒ ุชูƒูˆู† ุจุชุนุฑู ุชูƒุชุจ clean code ุฏู‡ ู…ู‡ู…ุŒ ูˆุฅู†ูƒ ุชุจู‚ู‰ ุณุฑูŠุน ููŠ ุชู†ููŠุฐ ุงู„ู€ tasks ูƒู…ุงู† ุญุงุฌุฉ ุญู„ูˆุฉุŒ ุจุณ ุฏู‡ ูƒู„ู‡ ู„ูˆุญุฏู‡ ู…ุด ูƒูุงูŠุฉ.

ุงู„ู„ูŠ ูุนู„ู‹ุง ุจูŠูุฑู‚ ุจูŠู† ู…ุจุฑู…ุฌ ุนุงุฏูŠโ€ฆ ูˆู…ู‡ู†ุฏุณ ุจุฑู…ุฌูŠุงุช ุชู‚ูŠู„ุŒ ู‡ูˆ ู‚ุฏ ุฅูŠู‡ ูุงู‡ู… ุงู„ุจุฒู†ุณ ุงู„ู„ูŠ ุจูŠุดุชุบู„ ุนู„ูŠู‡.

ูŠุนู†ูŠ ุฅูŠู‡ุŸ
ูŠุนู†ูŠ ู‚ุจู„ ู…ุง ุชูุชุญ VS Code ูˆุชุจุฏุฃ ุชูƒุชุจ ุฃูŠ ุณุทุฑ ูƒูˆุฏุŒ ู„ุงุฒู… ุชุณุฃู„ ู†ูุณูƒ ุณุคุงู„ ุจุณูŠุท:

"ู‡ูˆ ู„ูŠู‡ ุจู†ุนู…ู„ ุงู„ู€ feature ุฏูŠ ุฃุตู„ุงู‹ุŸ"

ู„ุฃู†ูƒ ู„ูˆ ู…ุด ูุงู‡ู… ุงู„ู€ โ€œู„ูŠู‡โ€ุŒ ู…ู…ูƒู† ุชุดุชุบู„ ูƒุชูŠุฑ ูˆุชุจุฐู„ ู…ุฌู‡ูˆุฏ ูƒุจูŠุฑโ€ฆ ูˆููŠ ุงู„ุขุฎุฑ ุชุทู„ุน ุงู„ู†ุชูŠุฌุฉ ู…ุด ู‡ูŠ ุงู„ู„ูŠ ุงู„ู€ business ู…ุญุชุงุฌู‡ุง!

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๐Ÿ’ก ูŠุนู†ูŠ ุฅูŠู‡ Business GoalุŸ

ุงู„ู€ business goal ู‡ูˆ ุงู„ุณุจุจ ุงู„ุญู‚ูŠู‚ูŠ ุฅู† ุงู„ุดุฑูƒุฉ ู‚ุฑุฑุช ุชุถูŠู ุงู„ู€ feature ุฏูŠ.
ู…ุด ุจุณ ุฅุฒุงูŠ ู†ุนู…ู„ู‡ุงุŒ ู„ูƒู† ู„ูŠู‡ ุจู†ุนู…ู„ู‡ุงุŸ
ุจู†ุญุงูˆู„ ู†ุญู„ ู…ุดูƒู„ุฉ ู„ู…ูŠู†ุŸ ูˆุฅูŠู‡ ุงู„ู„ูŠ ู‡ู†ุณุชูุงุฏู‡ ู„ู…ุง ู†ุญู„ู‡ุงุŸ

ูŠุนู†ูŠ ู…ุซู„ู‹ุง:

- ู…ู…ูƒู† ู†ูƒูˆู† ุจู†ุนู…ู„ filter ุนุดุงู† ู†ุฒูˆุฏ ุงู„ู€ conversion rate.
- ุฃูˆ ุจู†ุถูŠู notification ุฌุฏูŠุฏุฉ ุนุดุงู† ู†ู‚ู„ู„ ุงู„ู€ churn.
- ุฃูˆ ุจู†ุนู…ู„ redesign ู„ุฌุฒุก ู…ุนูŠู† ุนุดุงู† ู†ุฎู„ูŠ ุงู„ู€ onboarding ุฃุณุฑุน.

ูƒู„ ูˆุงุญุฏุฉ ู…ู† ุฏูˆู„ ู…ุญุชุงุฌุฉ ุชููƒูŠุฑ ูˆุชู†ููŠุฐ ู…ุฎุชู„ูุŒ ุฑุบู… ุฅู† ู…ู…ูƒู† ูŠูƒูˆู† ุดูƒู„ ุงู„ู€ features ุดุจู‡ ุจุนุถ.

โ€”โ€”โ€”

๐Ÿ“Œ ุฅูŠู‡ ุงู„ู„ูŠ ู‡ูŠุญุตู„ ู„ู…ุง ุชุดุชุบู„ ู…ู† ุบูŠุฑ ู…ุง ุชูู‡ู… ุงู„ุจุฒู†ุณุŸ


1- ุจุชูƒุชุจ ูƒูˆุฏ ุญู„ูˆโ€ฆ ุจุณ ุบู„ุท.
ุจุชุจุฐู„ ู…ุฌู‡ูˆุฏ ูƒุจูŠุฑ ููŠ ุญุงุฌุงุช ู…ุด ู…ุทู„ูˆุจุฉ ุฃูˆ ู…ุด ู…ููŠุฏุฉ ุญุงู„ูŠู‹ุง.

2- ุจุชููˆู‘ุช ูุฑุตุฉ ุฅู†ูƒ ุชุถูŠู value.
ู…ู…ูƒู† ุชูƒูˆู† ุนู†ุฏูƒ ุงู‚ุชุฑุงุญุงุช ุชุญุณู‘ู† ุงู„ููƒุฑุฉ ู„ูˆ ูƒู†ุช ูุงู‡ู… ุงู„ู‡ุฏู ุงู„ุญู‚ูŠู‚ูŠุŒ ุจุณ ู„ุฃู†ูƒ ู…ุด ุนุงุฑู ุงู„ู€ contextุŒ ุจุชู†ูู‘ุฐ ูˆุฎู„ุงุต.

3- ุจุชุฒูˆุฏ ุงู„ู€ tech debt ู…ู† ุบูŠุฑ ู‚ุตุฏ.
ู„ุฃู†ูƒ ู…ู…ูƒู† ุชุฎุชุงุฑ ุญู„ ุชู‚ู†ูŠ ู…ุด ู…ู†ุงุณุจ ู„ู„ู‡ุฏู ุงู„ุฃุณุงุณูŠุŒ ูˆุจุนุฏ ุดูˆูŠุฉ ุงู„ุดุฑูƒุฉ ุชุถุทุฑ ุชุฑุฌุน ุชุบูŠุฑ ุงู„ุญู„ ุฏู‡.

4- ุจุชูƒูˆู† reactive ู…ุด proactive.
ุจุชู†ูู‘ุฐ ุงู„ู„ูŠ ู…ูƒุชูˆุจ ูˆุฎู„ุงุตุŒ ุจุฏู„ ู…ุง ุชูƒูˆู† ุดุฑูŠูƒ ุญู‚ูŠู‚ูŠ ููŠ ุงู„ุญู„.

โ€”โ€”โ€”

ู„ูˆ ุงู„ู…ุจุฑู…ุฌ ุณุฃู„ ุฃูˆู„ ู…ุง ุงุณุชู„ู… ุงู„ู€ task:


"ุฅุญู†ุง ู„ูŠู‡ ุนุงูŠุฒูŠู† ู†ุถูŠู ุงู„ูู„ุชุฑ ุฏู‡ุŸ"
ูˆูƒุงู† ุงู„ุฑุฏ:
"ุนุดุงู† ุนู†ุฏู†ุง data ุจุชู‚ูˆู„ ุฅู† ุงู„ู…ุณุชุฎุฏู…ูŠู† ุจูŠุฎุฑุฌูˆุง ู…ู† ุงู„ุตูุญุฉ ู„ู…ุง ู…ุด ุจูŠู„ุงู‚ูˆุง ุงู„ู…ู†ุชุฌ ุงู„ู„ูŠ ุนุงูˆุฒูŠู†ู‡ ุจุณุฑุนุฉ"

ุณุงุนุชู‡ุง ูƒุงู† ู…ู…ูƒู†:

- ูŠุฑูƒู‘ุฒ ุนู„ู‰ ุชุญุณูŠู† ุชุฌุฑุจุฉ ุงู„ุจุญุซ ุฃูƒุชุฑ ู…ู† ุดูƒู„ ุงู„ูู„ุชุฑ.

- ูŠู‚ุชุฑุญ autocomplete.

- ูŠุถูŠู ranking based on popularity.

- ูŠุญู„ู„ ุงู„ู€ analytics ุฃูƒุชุฑ ูˆูŠุดุชุบู„ ู…ุน ุงู„ู€ designer ุนู„ู‰ UI/UX ุฃุญุณู†.

ูŠุนู†ูŠ ูƒุงู† ู‡ูŠููƒู‘ุฑ ุฒูŠ ู…ุง ุงู„ู€ product owner ุจูŠููƒุฑุŒ ูˆูŠุจู‚ู‰ ู…ุด ุจุณ ู…ุจุฑู…ุฌ ุจูŠูƒุชุจ ูƒูˆุฏุŒ ู„ูƒู† ุดุฑูŠูƒ ููŠ ุงู„ุญู„.

โ€”โ€”โ€”

โœ… ุชุนู…ู„ ุฅูŠู‡ ุนุดุงู† ุชุจู‚ู‰ ูุงู‡ู… ุงู„ุจุฒู†ุณ ูƒูˆูŠุณุŸ


1- ุงุณุฃู„ ุฏุงูŠู…ู‹ุง "ู„ูŠู‡ุŸ" ู‚ุจู„ ู…ุง ุชุจุฏุฃ ููŠ ุฃูŠ task.

2- ุงูู‡ู… ุงู„ู€ KPIs ุงู„ู„ูŠ ุงู„ูุฑูŠู‚ ุจูŠุดุชุบู„ ุนู„ูŠู‡ุง.
ุฅูŠู‡ ุงู„ู„ูŠ ุจูŠู‚ูŠุณูˆุง ุจู‡ ุงู„ู†ุฌุงุญุŸ TrafficุŸ ConversionุŸ RetentionุŸ

3- ุงุญุถุฑ meetings ู…ุน ุงู„ู€ product/marketing ู„ู…ุง ุชู‚ุฏุฑ.
ู‡ุชุดูˆู ุงู„ุฏู†ูŠุง ู…ู† ุฒุงูˆูŠุชู‡ู…ุŒ ูˆุฏู‡ ู‡ูŠูุฑู‚ ููŠ ุทุฑูŠู‚ุฉ ุชููƒูŠุฑูƒ.

4- ุงุฑุจุท ุงู„ู€ code ุงู„ู„ูŠ ุจุชูƒุชุจู‡ ุจุงู„ู€ impact ุงู„ู„ูŠ ุจูŠุนู…ู„ู‡.
"ุงู„ู€ PR ุฏู‡ ู„ู…ุง ุฏุฎู„ุŒ ุฒูˆู‘ุฏ ุงู„ู€ signup rate 10%".
ุฏู‡ ุฃูุถู„ ุจูƒุชูŠุฑ ู…ู† "ุนู…ู„ุช login form ุจุงู„ู€ clean code".

โ€”โ€”โ€”

ูˆูู‚ูƒู… ุงู„ู„ู‡ ู„ูƒู„ ุฎูŠุฑ ๐ŸŒฟ
ุฃูƒูŠุฏ ุชุนุฑู npm install ุฃูˆ npm i
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ู„ูƒู† ู‡ู„ ุชุนุฑู npm ciุŸ

ู„ู…ุง ุชูƒุชุจ npm installุŒ ู‡ูˆ ุจูŠุจุต ุนู„ู‰ ุงู„ู€ package.json ูˆูŠุดูˆู ุฅูŠู‡ ุงู„ู€ packages ุงู„ู…ุทู„ูˆุจุฉุŒ ูˆุจุนุฏูŠู†:

- ู„ูˆ ููŠู‡ package-lock.json ุจูŠุญุงูˆู„ ูŠุทุงุจู‚ู‡.
- ูˆู„ูˆ ู…ุด ู…ูˆุฌูˆุฏุŒ ุจูŠุจุฏุฃ ูŠุฑูƒู‘ุจ ุงู„ู„ูŠ ู…ุญุชุงุฌู‡ ูˆูŠุนู…ู„ ูˆุงุญุฏ ุฌุฏูŠุฏ.
- ูˆูƒู…ุงู† ู…ู…ูƒู† ูŠุญุฏุซ ุจุนุถ ุงู„ู€ packages ู„ูˆ ุดุงู ุฅู† ููŠู‡ ุฅุตุฏุงุฑ ุฃุญุฏุซ ู…ุชูˆุงูู‚ ู…ุน ุงู„ุดุฑูˆุท.

ูˆุทุจุนู‹ุง ุฏู‡ ูƒูˆูŠุณ ู„ูƒู† ู…ู…ูƒู† ูŠุญุตู„ ุงุฎุชู„ุงูุงุช ู…ู† ุฌู‡ุงุฒ ู„ู„ุชุงู†ูŠ...

โ€”โ€”โ€”

ุงู„ู€ ci ู…ุนู†ุงู‡ุง "clean install"ุŒ ูˆุงู„ุฃู…ุฑ ุฏู‡ ู…ุนู…ูˆู„ ู…ุฎุตูˆุต ุนุดุงู† ุงู„ู€ automation ูˆุจูŠุดุชุบู„ ุจุดูƒู„ ุฃุณุฑุน ูˆุฃุณู‡ู„.

- ุจูŠู…ุณุญ ููˆู„ุฏุฑ node_modules ุชู…ุงู…ู‹ุง.
- ูˆุจุนุฏูŠู† ูŠุฑูƒู‘ุจ ุงู„ู€ packages ุจุงู„ุถุจุท ุฒูŠ ู…ุง ู‡ูŠ ู…ูƒุชูˆุจุฉ ููŠ package-lock.json.
- ู„ูˆ ููŠู‡ ูุฑู‚ ุจูŠู† package.json ูˆ package-lock.json ุจูŠู‚ู ูˆูŠุนู…ู„ Error.


โœ… ุฏู‡ ู…ุนู†ุงู‡ ุฅู† npm ci:

- ุฃุณุฑุน ู…ู† install.
- ุจูŠุนู…ู„ ู†ูุณ ุงู„ู†ุชุงุฆุฌ ูƒู„ ู…ุฑุฉ.
- ู…ู…ุชุงุฒ ููŠ ุงู„ู€ CI/CD pipelines ุฃูˆ ููŠ ุงู„ุดุฑูƒุงุช ุงู„ูƒุจูŠุฑุฉ.

โ€”โ€”โ€”

ู„ูˆ ุดุบุงู„ ู„ูˆุญุฏูƒ ูˆู„ุณู‡ ุจุชุถูŠู/ุชุญุฏุซ packages: ุงุณุชุฎุฏู… npm install.

ู„ูˆ ุจุชุดุชุบู„ ููŠ ุชูŠู… ุฃูˆ ุจุชุนู…ู„ Deploy ุนู„ู‰ ุณูŠุฑูุฑ: ุงุณุชุฎุฏู… npm ci ุนุดุงู† ุชุถู…ู† ุซุจุงุช ุงู„ุจูŠุฆุฉ.

โ€”โ€”โ€”

ูˆูู‚ูƒู… ุงู„ู„ู‡ ู„ูƒู„ ุฎูŠุฑ ๐ŸŒฟ
ูƒู„ ุนุงู… ูˆุฃู†ุชู… ุจุฎูŠุฑ ๐Ÿค
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JavaScript DOM Selection and Manipulation ๐Ÿ’ฏ
๐Ÿ”ฐ Linux Command Cheat Sheet

File Commands

- ls - Directory listing
- ls -l - Long listing format
- ls -a - List all files including hidden files
- cd /path/to/directory - Change directory
- pwd - Display the current working directory
- mkdir directory_name - Create a new directory
- rmdir directory_name - Remove an empty directory
- rm file_name - Remove a file
- rm -r directory_name - Remove a directory and its contents recursively
- touch file_name - Create or update a file
- cat file_name - Concatenate and display the file content
- more file_name - View file content page by page
- less file_name - Improved viewing of file content over more
- cp source_file target_file - Copy files from source to target
- mv old_name new_name - Rename or move a file/directory

SSH (Secure Shell)

- ssh user@host - Connect to host as user
- ssh -p port user@host - Connect using a specific port
- ssh-keygen -t rsa - Generate RSA key pair
- ssh-copy-id user@host - Copy your key to the remote server for password-less login

Searching

- grep pattern files - Search for a pattern in files
- grep -r pattern dir - Recursively search for a pattern in a directory
- find dir -name name* - Find files starting with name in a directory
- locate file_name - Find files by name (uses a database)

Process Management

- ps aux - Display your currently active processes
- ps aux | grep process_name - Find a process named process_name
- top - Display all running processes
- kill pid - Kill a process with a given PID
- killall process_name - Kill all processes named process_name
- bg - List stopped or background jobs; resume a stopped job in the background
- fg - Bring the most recent job to the foreground

File Permissions

- chmod +x file_name - Make a file executable
- chmod 755 file_name - Set read and execute permissions for owner and read for others
- chown user:group file_name - Change file owner and group

Networking

- ifconfig - Display all network interfaces and IP addresses
- ping host - Send ICMP echo request to host
- traceroute host - Display the route packets take to a network host
- netstat -tulnp - Display listening ports and their applications

Archiving and Compression

- tar cf archive_name.tar files - Create a tar archive containing files
- tar xf archive_name.tar - Extract files from a tar archive
- gzip file_name - Compress a file and rename it to file.gz
- gunzip file.gz - Decompress file.gz back to the original

System Info and Management

- uname -a - Show system and kernel info
- df -h - Display free disk space in a human-readable form
- du -sh directory_name - Show disk usage of a directory in human-readable form
- free -m - Show free and used memory in MB

Misc Commands

- man command_name - Show manual for a command
- echo "text" - Display a message on the screen
- date - Display the current date and time
- uptime - Show how long the system has been running
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ุฅุฒุงูŠ ุชู†ูุฐ ุงู„ู€ Caching ููŠ Node.jsุŸ ๐Ÿค”
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ู„ูˆ ุฃู†ุช ุดุบุงู„ ุจู€ Node.jsุŒ ูู€ ุฃูƒูŠุฏ ู‚ุงุจู„ุช ููŠ ูŠูˆู… ู…ุดูƒู„ุฉ ุฅู† ุงู„ู€ API ุนู†ุฏูƒ ุจูŠุจู‚ู‰ ุจุทูŠุก ุจุณุจุจ requests ูƒุชูŠุฑ ุฃูˆ ุนู…ู„ูŠุงุช ุชู‚ูŠู„ุฉ ุฒูŠ queries ุนู„ู‰ databaseุŒ ูˆุจุฏุฃุช ุชููƒุฑ:
"ู„ูŠู‡ ูƒู„ ู…ุฑุฉ ุฃุฌูŠุจ ู†ูุณ ุงู„ุฏุงุชุงุŸ ุทุจ ู…ููŠุด ุญู„ ุฃุณุฑุนุŸ"

ุงู„ุฅุฌุงุจุฉ ู‡ูŠ: Caching.

ูˆุฏู‡ ุงู„ู„ูŠ ู‡ู†ุชูƒู„ู… ุนู†ู‡ ุงู„ูŠูˆู… ุจุงู„ุชูุตูŠู„....

[ ูƒู„ ุงู„ุฃูƒูˆุงุฏ ู‡ุชู„ุงู‚ูŠู‡ุง ููŠ ุงู„ุชุนู„ูŠู‚ุงุช ุชุญุช ุงู„ุฑุณุงู„ุฉ ]

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๐ŸŽฏ ุฅูŠู‡ ู‡ูˆ ุงู„ู€ CachingุŸ


ุจุจุณุงุทุฉุŒ ู‡ูˆ ุฅู†ูƒ ุชุญูุธ ู†ุณุฎุฉ ู…ู† ุงู„ุฏุงุชุง ู…ุคู‚ุชู‹ุง ููŠ ู…ูƒุงู† ุชุงู†ูŠ (ุจูŠูƒูˆู† ุฃุณุฑุน ู…ู† ุงู„ู…ุตุฏุฑ ุงู„ุฃุณุงุณูŠ ุฒูŠ ุงู„ู€ DB)ุŒ ุนู„ุดุงู† ู„ู…ุง ุชูŠุฌูŠ ุชุทู„ุจ ู†ูุณ ุงู„ุญุงุฌุฉ ุชุงู†ูŠุŒ ู…ุง ุชุฑูˆุญ ุชุฌูŠุจู‡ุง ู…ู† ุงู„ุฃูˆู„ุŒ ู„ุงุŒ ุชุฑุฏ ุจุณุฑุนุฉ ู…ู† ุงู„ู€ cache.

ูˆุฏู‡ ุจูŠูุฑู‚ ุฌุงู…ุฏ ุฌุฏู‹ุง ููŠ ุงู„ุณุฑุนุฉุŒ ูˆุงู„ุฃุฏุงุกุŒ ูˆุงู„ุญู…ู„ ุนู„ู‰ ุงู„ุณูŠุฑูุฑ.

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ุฅุฒุงูŠ ุชุนู…ู„ ุงู„ู€ Caching ููŠ Node.jsุŸ


1. ุงู„ู€ In-Memory Caching (ุจุงุณุชุฎุฏุงู… node-cache ุฃูˆ lru-cache)

ู„ูˆ ุนู†ุฏูƒ ุฏุงุชุง ู…ุด ูƒุจูŠุฑุฉ ูˆู…ุด ู…ุญุชุงุฌ ุชุดุงุฑูƒู‡ุง ุจูŠู† ุฃูƒุชุฑ ู…ู† instanceุŒ ูู€ in-memory caching ุจูŠูƒูˆู† ุญู„ ุณุฑูŠุน ูˆุณู‡ู„.

๐Ÿ“Œ ู…ู†ุงุณุจ ู„ุญุงู„ุงุช ุฒูŠ ุงู„ุฏุงุชุง ุงู„ู‚ู„ูŠู„ุฉุŒ ุฃูˆ ุนู…ู„ูŠุงุช ุญุณุงุจูŠุฉ ุชู‚ูŠู„ุฉุŒ ุจุณ ุฎู„ูŠ ุจุงู„ูƒ ุฅู†ู‡ volatileุŒ ูŠุนู†ูŠ ู„ูˆ ุงู„ุณูŠุฑูุฑ ุนู…ู„ restartุŒ ูƒู„ ุญุงุฌุฉ ุจุชุฑูˆุญ.

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2. ุงู„ู€ Redis Caching (ุงู„ุญู„ ุงู„ุฃู‚ูˆู‰ ูˆุงู„ุฃุดู‡ุฑ)

ู„ูˆ ุจุชุฏูˆุฑ ุนู„ู‰ Cache centralized ูˆุณุฑูŠุน ูˆุชู‚ุฏุฑ ุชุดุงุฑูƒ ุงู„ุฏุงุชุง ุจูŠู† ุฃูƒุชุฑ ู…ู† instanceุŒ ูŠุจู‚ู‰ Redis ู‡ูˆ ุงู„ุฃูุถู„ ู‡ู†ุง.

๐ŸŽฏ ุงู„ู€ Redis ุณุฑูŠุน ุฌุฏู‹ุงุŒ ูˆุจูŠุณุชุฎุฏู… ููŠ ู…ุดุงุฑูŠุน ูƒุจูŠุฑุฉ ุฒูŠ Twitter ูˆ GitHub. ูˆูƒู…ุงู† ุชู‚ุฏุฑ ุชุชุญูƒู… ููŠ TTLุŒ ูˆุชุนู…ู„ invalidationุŒ ูˆุชุฎุฒู† ุฃูƒุชุฑ ู…ู† ู†ูˆุน ุฏุงุชุง.

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3. ุงู„ู€ Caching Responses ู…ุจุงุดุฑุฉ (ู…ุซู„ู‹ุง ููŠ GraphQL ุฃูˆ REST)

ู„ูˆ ุดุบุงู„ ู…ุซู„ุงู‹ ุจู€ Apollo Server ููŠ GraphQLุŒ ุชู‚ุฏุฑ ุชุณุชุฎุฏู… built-in caching

ุฃูˆ ุญุชู‰ ู„ูˆ ุดุบุงู„ REST ุชู‚ุฏุฑ ุชุณุชุฎุฏู… middlewares ุฒูŠ apicache ุฃูˆ express-cache-controller.

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๐Ÿค” ุฅู…ุชู‰ ุชุณุชุฎุฏู… ุงู„ู€ CachingุŸ


- ู„ู…ุง ุชูƒูˆู† ุจุชูƒุฑุฑ ู†ูุณ ุงู„ู€ requests ุจูƒู…ูŠุงุช ูƒุจูŠุฑุฉ.
- ู„ู…ุง ุงู„ุฏุงุชุง ุชูƒูˆู† ู…ุด ุจุชุชุบูŠุฑ ูƒุชูŠุฑ.
- ู„ูˆ ุงู„ู€ DB ุนู†ุฏูƒ ุจุทูŠุฆุฉ ุฃูˆ ุจุชุงุฎุฏ ูˆู‚ุช ููŠ ุงู„ู…ุนุงู„ุฌุฉ.
- ู„ูˆ ุนุงูŠุฒ ุชู‚ู„ู„ ุงู„ุชุฑุงููŠูƒ ุนู„ู‰ ุงู„ู€ backend.

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โš ๏ธ ุฎู„ูŠ ุจุงู„ูƒ:


ู„ุงุฒู… ุชุนู…ู„ Cache Invalidation ูƒูˆูŠุณุŒ ุนู„ุดุงู† ู…ุง ุชุฑุฌุน ุฏุงุชุง ู‚ุฏูŠู…ุฉ ุจุนุฏ ุงู„ุชุญุฏูŠุซ.

ุจู„ุงุด ุชุณุชุฎุฏู… ุงู„ู€ Caching ู„ุฃูŠ ุฏุงุชุง ุญุณุงุณุฉ ุฃูˆ ุดุฎุตูŠุฉ (privacy first).

ุฎู„ูŠูƒ ุฏุงูŠู…ู‹ุง ุนุงุฑู ุฅู…ุชู‰ ุชุนู…ู„ CacheุŒ ูˆุฅู…ุชู‰ ู„ุง... ู…ุด ูƒู„ ุญุงุฌุฉ ู…ุญุชุงุฌุฉ ุชุชุฎุฒู†.

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ูˆูู‚ูƒู… ุงู„ู„ู‡ ู„ูƒู„ ุฎูŠุฑ ๐ŸŒฟ
2025/06/18 15:56:31
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