What Are API Keys, And Why Are They So Important? | System Design Interview Basics

array(10) { [0]=> object(stdClass)#5239 (5) { ["video_id"]=> int(9999999) ["related_video_id"]=> string(11) "Yzx7ihtCGBs" ["related_video_title"]=> string(55) "What is an API and how does it work? (In plain English)" ["posted_time"]=> string(19) "5 лет назад" ["channelName"]=> string(13) "CodeWithChris" } [1]=> object(stdClass)#5212 (5) { ["video_id"]=> int(9999999) ["related_video_id"]=> string(11) "0GBwONfttx0" ["related_video_title"]=> string(49) "Scalability | System Design Interview Basics 2022" ["posted_time"]=> string(21) "3 года назад" ["channelName"]=> string(14) "Big Tech Coach" } [2]=> object(stdClass)#5237 (5) { ["video_id"]=> int(9999999) ["related_video_id"]=> string(11) "s9Qh9fWeOAk" ["related_video_title"]=> string(56) "System Design was HARD until I Learned these 30 Concepts" ["posted_time"]=> string(25) "2 месяца назад" ["channelName"]=> string(19) "Ashish Pratap Singh" } [3]=> object(stdClass)#5244 (5) { ["video_id"]=> int(9999999) ["related_video_id"]=> string(11) "GcVtElYa17s" ["related_video_title"]=> string(64) "API Authentication EXPLAINED! 🔐 OAuth vs JWT vs API Keys 🚀" ["posted_time"]=> string(25) "4 месяца назад" ["channelName"]=> string(8) "SoftsWeb" } [4]=> object(stdClass)#5223 (5) { ["video_id"]=> int(9999999) ["related_video_id"]=> string(11) "ooyOmiczY1g" ["related_video_title"]=> string(37) "API Key Authentication Best Practices" ["posted_time"]=> string(21) "2 года назад" ["channelName"]=> string(15) "API Excellence " } [5]=> object(stdClass)#5241 (5) { ["video_id"]=> int(9999999) ["related_video_id"]=> string(11) "bxuYDT-BWaI" ["related_video_title"]=> string(29) "APIs Explained (in 4 Minutes)" ["posted_time"]=> string(21) "2 года назад" ["channelName"]=> string(8) "Exponent" } [6]=> object(stdClass)#5236 (5) { ["video_id"]=> int(9999999) ["related_video_id"]=> string(11) "3KacwGTNxDY" ["related_video_title"]=> string(63) "Ты не сможешь пройти эти игры на 100%" ["posted_time"]=> string(21) "1 день назад" ["channelName"]=> string(16) "БУЛДЖАТь" } [7]=> object(stdClass)#5246 (5) { ["video_id"]=> int(9999999) ["related_video_id"]=> string(11) "nec3aZM8aUY" ["related_video_title"]=> string(83) "Deep House Mix 2024 | Deep House, Vocal House, Nu Disco, Chillout Mix by Diamond #3" ["posted_time"]=> string(19) "1 год назад" ["channelName"]=> string(7) "Diamond" } [8]=> object(stdClass)#5222 (5) { ["video_id"]=> int(9999999) ["related_video_id"]=> string(11) "WG6k74VSOOU" ["related_video_title"]=> string(63) "Database Replication Explained | System Design Interview Basics" ["posted_time"]=> string(21) "3 года назад" ["channelName"]=> string(14) "Big Tech Coach" } [9]=> object(stdClass)#5240 (5) { ["video_id"]=> int(9999999) ["related_video_id"]=> string(11) "8UPDF-Is9o0" ["related_video_title"]=> string(118) "Китай представил самых безумных дронов на выставке UAV SHENZHEN EXPO 2025!" ["posted_time"]=> string(19) "2 дня назад" ["channelName"]=> string(12) "Alex Robolab" } }