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David Essien

I love the art of programming. Most days I’m building; the rest of the time, I’m writing about the things I finally figured out. Aiming for a masterpiece, one bug at a time.

Location Lagos, Nigeria Joined Joined on  Personal website https://davidessien.dev
How I Eliminated 19,494 Duplicate MongoDB Records (And What I'd Do Differently Today)
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How I Eliminated 19,494 Duplicate MongoDB Records (And What I'd Do Differently Today)

#database #mongodb #backend #webdev
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8 min read

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Code Fingerprinting: Detecting Duplicate Submissions Without Losing Your Mind (or Your API Budget)
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Code Fingerprinting: Detecting Duplicate Submissions Without Losing Your Mind (or Your API Budget)

#api #backend #performance #security
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11 min read
Why I Move AI Model Calls to the Server — Security, Performance, and Everything In Between
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Why I Move AI Model Calls to the Server — Security, Performance, and Everything In Between

#ai #architecture #backend #webdev
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11 min read
How to Authenticate Users with Solana Wallets in NestJS
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How to Authenticate Users with Solana Wallets in NestJS

#web3 #solana #nestjs #authentication
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16 min read
Building Secure JWT Auth in NestJS: Argon2, Redis Blacklisting, and Token Rotation
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Building Secure JWT Auth in NestJS: Argon2, Redis Blacklisting, and Token Rotation

#nestjs #security #authentication #jwt
1
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7 min read
Handling Cold Starts in Serverless AI: Why Your First Request Fails (And How to Fix It)
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Handling Cold Starts in Serverless AI: Why Your First Request Fails (And How to Fix It)

#webdev #ai #serverless #nextjs
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4 min read
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