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I’ll be honest with you: I didn’t wake up one morning thinking “Let me reverse-engineer TikTok today.” It started with something much simpler: “I just want to upload videos to TikTok programmatically… why is this so damn hard?”

Breaking Down API Defenses: UA - Cookies - Signatures Browser...

Mai Chi BaoMai Chi BaoNov 17 '251 min read
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I’ll be honest with you: I didn’t wake up one morning thinking “Let me reverse-engineer TikTok today.” It started with something much simpler: “I just want to upload videos to TikTok programmatically… why is this so damn hard?”
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Breaking Down API Defenses: UA - Cookies - Signatures Browser 🤖
mrzaizai2k profile
Mai Chi Bao
Mai Chi Bao
Nov 17 '25

Breaking Down API Defenses: UA - Cookies - Signatures Browser 🤖

#webdev #api #security #mrzaizai2k
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4 min read

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Breaking Down API Defenses: UA - Cookies - Signatures Browser 🤖Everything worked perfectly on my laptop. 🚀 The UI loaded, uploads succeeded, APIs responded instantly. But on demo day, in front of my boss, everything collapsed. 💥

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