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      <title><![CDATA[Stop Designing REST APIs Wrong: 10 Mistakes Developers Keep Making]]></title>
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      <description><![CDATA[A practical guide to the 10 REST API design mistakes that create confusion, break clients, and add technical debt, with clear fixes for each.]]></description>
      <pubDate>Mon, 09 Mar 2026 00:00:00 GMT</pubDate>
      <author>hello@biswajitrath.com (Biswajit Rath)</author>
      <category><![CDATA[Backend]]></category>
      <category><![CDATA[REST API]]></category>
      <category><![CDATA[API Design]]></category>
      <category><![CDATA[Scalability]]></category>
      <category><![CDATA[Security]]></category>
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      <title><![CDATA[Cut Your LLM Token Bill in Half - How TOON Rewrites the Rules of JSON]]></title>
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      <description><![CDATA[Discover how TOON (Token-Oriented Object Notation) can reduce your LLM API costs by 30-60% through smarter data formatting designed specifically for AI applications.]]></description>
      <pubDate>Sun, 02 Nov 2025 00:00:00 GMT</pubDate>
      <author>hello@biswajitrath.com (Biswajit Rath)</author>
      <category><![CDATA[LLM]]></category>
      <category><![CDATA[AI]]></category>
      <category><![CDATA[Optimization]]></category>
      <category><![CDATA[TOON]]></category>
      <category><![CDATA[Cost Savings]]></category>
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      <title><![CDATA[How Big Tech Checks Username Availability in a Fraction of a Second]]></title>
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      <description><![CDATA[A deep technical yet approachable breakdown of how massive platforms check username availability instantly while ensuring accuracy at scale.]]></description>
      <pubDate>Sun, 10 Aug 2025 00:00:00 GMT</pubDate>
      <author>hello@biswajitrath.com (Biswajit Rath)</author>
      <category><![CDATA[Backend]]></category>
      <category><![CDATA[System Design]]></category>
      <category><![CDATA[Databases]]></category>
      <category><![CDATA[Caching]]></category>
      <category><![CDATA[Scalability]]></category>
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      <title><![CDATA[Encoding, Hashing, Encrypting: The Ultimate Guide to Securing Your Data]]></title>
      <link>https://www.biswajitrath.com/blog/encoding-encrypting-hashing</link>
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      <description><![CDATA[Understand the key differences between encoding, hashing, and encryption - including how they work, their use cases, and real-world examples.]]></description>
      <pubDate>Thu, 07 Aug 2025 00:00:00 GMT</pubDate>
      <author>hello@biswajitrath.com (Biswajit Rath)</author>
      <category><![CDATA[Security]]></category>
      <category><![CDATA[Backend]]></category>
      <category><![CDATA[Encryption]]></category>
      <category><![CDATA[Hashing]]></category>
      <category><![CDATA[Encoding]]></category>
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      <title><![CDATA[Winning Against the Odds: My Unforgettable Smart India Hackathon Journey]]></title>
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      <description><![CDATA[A thrilling journey through the Smart India Hackathon—intense challenges, last-minute changes, and an unexpected yet unforgettable win!]]></description>
      <pubDate>Tue, 26 Nov 2024 00:00:00 GMT</pubDate>
      <author>hello@biswajitrath.com (Biswajit Rath)</author>
      <category><![CDATA[Hackathon]]></category>
      <category><![CDATA[Career]]></category>
      <category><![CDATA[Student Journey]]></category>
      <category><![CDATA[Innovation]]></category>
      <category><![CDATA[SIH]]></category>
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