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TechCraft - Biến lập trình thành nghệ thuật 🎨💻
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Joined November 6, 2025
409,199 total views
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Featured video

🎬 WATCH THIS VIDEO FOR A FEW MINUTES, I GUARANTEE YOU WON'T FEEL LIKE YOU'VE WASTED A SINGLE SECOND

777 views

3 months ago

Members-only videos

🔒🌐 CAP Theorem — You Can't Have It All in Distributed Systems | Distributed Systems P15
7:21
🔒🌐 CAP Theorem — You Can't Have It All in Distributed Systems | Distributed Systems P15

0 views

2 days ago

🔒🌐 Consistency Models — Does data need to be identical instantly? | Distributed Systems P14
6:23
🔒🌐 Consistency Models — Does data need to be identical instantly? | Distributed Systems P14

0 views

3 days ago

🔒🌐 Saga Pattern — When Rollback Isn't So Simple | Distributed Systems P13
7:40
🔒🌐 Saga Pattern — When Rollback Isn't So Simple | Distributed Systems P13

0 views

4 days ago

🔒🌐 Distributed Transactions — Cross-service transactions are harder than you think | Distributed ...
6:54
🔒🌐 Distributed Transactions — Cross-service transactions are harder than you think | Distributed ...

0 views

5 days ago

🔒🌐 Idempotency In Distributed Systems — No Duplicate Side Effects Allowed | Distributed Systems P11
8:17
🔒🌐 Idempotency In Distributed Systems — No Duplicate Side Effects Allowed | Distributed Systems P11

0 views

7 days ago

🔒🌐 Exactly Once Is A Myth — Why Is Exactly-Once Processing So Expensive? | Distributed Systems P10
7:04
🔒🌐 Exactly Once Is A Myth — Why Is Exactly-Once Processing So Expensive? | Distributed Systems P10

0 views

9 days ago

🔒🌐 Event-Driven Architecture — When the Event is at the Heart of the System | Distributed Systems P9
7:38
🔒🌐 Event-Driven Architecture — When the Event is at the Heart of the System | Distributed Systems P9

0 views

10 days ago

🔒🌐 Message Queues Explained — Why Direct API Calls Are No Longer Enough | Distributed Systems P8
8:27
🔒🌐 Message Queues Explained — Why Direct API Calls Are No Longer Enough | Distributed Systems P8

0 views

12 days ago

🔒🌐 Bulkhead Pattern — Don't Let One Component Failure Take Down Your Entire System | Distributed ...
6:07
🔒🌐 Bulkhead Pattern — Don't Let One Component Failure Take Down Your Entire System | Distributed ...

0 views

2 weeks ago

🔒🌐 Circuit Breaker — Stop Calling That Failing Service | Distributed Systems P6
9:39
🔒🌐 Circuit Breaker — Stop Calling That Failing Service | Distributed Systems P6

0 views

2 weeks ago

🔒🌐 API Design Mindset — Mindset Over Patterns | API Design Patterns P15
6:49
🔒🌐 API Design Mindset — Mindset Over Patterns | API Design Patterns P15

0 views

3 weeks ago

🔒🌐 API Governance — khi một công ty có quá nhiều API | API Design Patterns P14
7:05
🔒🌐 API Governance — khi một công ty có quá nhiều API | API Design Patterns P14

0 views

3 weeks ago

🆙🔐🌐 Distributed Systems

TechCraft Official
🔒🌐 Consistency Models — Does data need to be identical instantly? | Distributed Systems P14
6:23
🔒🌐 Consistency Models — Does data need to be identical instantly? | Distributed Systems P14

0 views

3 days ago

TechCraft Official
🔒🌐 Saga Pattern — When Rollback Isn't So Simple | Distributed Systems P13
7:40
🔒🌐 Saga Pattern — When Rollback Isn't So Simple | Distributed Systems P13

0 views

4 days ago

TechCraft Official
🔒🌐 Distributed Transactions — Cross-service transactions are harder than you think | Distributed ...
6:54
🔒🌐 Distributed Transactions — Cross-service transactions are harder than you think | Distributed ...

0 views

5 days ago

TechCraft Official
🔒🌐 Idempotency In Distributed Systems — No Duplicate Side Effects Allowed | Distributed Systems P11
8:17
🔒🌐 Idempotency In Distributed Systems — No Duplicate Side Effects Allowed | Distributed Systems P11

0 views

7 days ago

TechCraft Official
🔒🌐 Exactly Once Is A Myth — Why Is Exactly-Once Processing So Expensive? | Distributed Systems P10
7:04
🔒🌐 Exactly Once Is A Myth — Why Is Exactly-Once Processing So Expensive? | Distributed Systems P10

0 views

9 days ago

TechCraft Official
🔒🌐 Event-Driven Architecture — When the Event is at the Heart of the System | Distributed Systems P9
7:38
🔒🌐 Event-Driven Architecture — When the Event is at the Heart of the System | Distributed Systems P9

0 views

10 days ago

TechCraft Official
🔒🌐 Message Queues Explained — Why Direct API Calls Are No Longer Enough | Distributed Systems P8
8:27
🔒🌐 Message Queues Explained — Why Direct API Calls Are No Longer Enough | Distributed Systems P8

0 views

12 days ago

TechCraft Official
🔒🌐 Bulkhead Pattern — Don't Let One Component Failure Take Down Your Entire System | Distributed ...
6:07
🔒🌐 Bulkhead Pattern — Don't Let One Component Failure Take Down Your Entire System | Distributed ...

0 views

2 weeks ago

TechCraft Official
🔒🌐 Circuit Breaker — Stop Calling That Failing Service | Distributed Systems P6
9:39
🔒🌐 Circuit Breaker — Stop Calling That Failing Service | Distributed Systems P6

0 views

2 weeks ago

TechCraft Official
🔒🌐 Retry Patterns — retry có thể cứu hệ thống hoặc giết hệ thống | Distributed Systems P5
7:33
🔒🌐 Retry Patterns — retry có thể cứu hệ thống hoặc giết hệ thống | Distributed Systems P5

103 views

2 weeks ago

TechCraft Official
🔒🌐 Timeout Patterns — When Should You Give Up on a Request? | Distributed Systems P4
8:24
🔒🌐 Timeout Patterns — When Should You Give Up on a Request? | Distributed Systems P4

106 views

2 weeks ago

TechCraft Official
🔒🌐 Latency Changes Everything — một request chậm có thể làm sập hệ thống | Distributed Systems P3
8:36
🔒🌐 Latency Changes Everything — một request chậm có thể làm sập hệ thống | Distributed Systems P3

105 views

2 weeks ago

✅ 🔒🌐 API Design Patterns

TechCraft Official
🔒🌐 Giới thiệu series API Design Patterns | API Design Patterns P0
8:09
🔒🌐 Giới thiệu series API Design Patterns | API Design Patterns P0

109 views

1 month ago

TechCraft Official
🔒🌐 Vì sao API bắt đầu vỡ khi hệ thống scale? | API Design Patterns P1
6:50
🔒🌐 Vì sao API bắt đầu vỡ khi hệ thống scale? | API Design Patterns P1

68 views

1 month ago

TechCraft Official
🔒🌐 Contract First Design — đừng code API trước khi hiểu cam kết | API Design Patterns P2
7:55
🔒🌐 Contract First Design — đừng code API trước khi hiểu cam kết | API Design Patterns P2

93 views

1 month ago

TechCraft Official
🔒🌐 Resource Modeling — API không phải map y nguyên database | API Design Patterns P3
7:47
🔒🌐 Resource Modeling — API không phải map y nguyên database | API Design Patterns P3

66 views

1 month ago

TechCraft Official
🔒🌐 Pagination Patterns — vì API không thể trả cả thế giới | API Design Patterns P4
7:56
🔒🌐 Pagination Patterns — vì API không thể trả cả thế giới | API Design Patterns P4

102 views

1 month ago

TechCraft Official
🔒🌐 Filtering & Search APIs — tìm kiếm không chỉ là thêm query param | API Design Patterns P5
8:48
🔒🌐 Filtering & Search APIs — tìm kiếm không chỉ là thêm query param | API Design Patterns P5

0 views

1 month ago

TechCraft Official
🔒🌐 Sorting & Query Design — sort sai có thể làm API chậm và lệch dữ liệu | API Design Patterns P6
7:56
🔒🌐 Sorting & Query Design — sort sai có thể làm API chậm và lệch dữ liệu | API Design Patterns P6

0 views

1 month ago

TechCraft Official
🔒🌐 Idempotency Patterns — Unsafe retries can cost you double | API Design Patterns P7
6:18
🔒🌐 Idempotency Patterns — Unsafe retries can cost you double | API Design Patterns P7

0 views

1 month ago

TechCraft Official
🔒🌐 Long Running Operations — đừng bắt client chờ một workflow dài | API Design Patterns P8
8:12
🔒🌐 Long Running Operations — đừng bắt client chờ một workflow dài | API Design Patterns P8

0 views

1 month ago

TechCraft Official
🔒🌐 Async API Design — When HTTP Response Isn't the End | API Design Patterns P9
8:50
🔒🌐 Async API Design — When HTTP Response Isn't the End | API Design Patterns P9

0 views

4 weeks ago

TechCraft Official
🔒🌐 Webhook Design — Webhooks are unreliable without retries and signatures | API Design Patterns P10
5:45
🔒🌐 Webhook Design — Webhooks are unreliable without retries and signatures | API Design Patterns P10

0 views

4 weeks ago

TechCraft Official
🔒🌐 Retry & Resiliency Patterns — retry sai có thể làm hệ thống tệ hơn | API Design Patterns P11
7:41
🔒🌐 Retry & Resiliency Patterns — retry sai có thể làm hệ thống tệ hơn | API Design Patterns P11

0 views

3 weeks ago

✅ 🔒⚖️ Transaction & Consistency

TechCraft Official
🔓⚖️ The Dangerous Lie in Software: "The Transaction Succeeded" | Transaction & Consistency P1
5:50
🔓⚖️ The Dangerous Lie in Software: "The Transaction Succeeded" | Transaction & Consistency P1

134 views

1 month ago

TechCraft Official
🔓⚖️ ACID — The Most Misunderstood Contract in Databases | Transaction & Consistency P2
7:34
🔓⚖️ ACID — The Most Misunderstood Contract in Databases | Transaction & Consistency P2

190 views

1 month ago

TechCraft Official
🔓⚖️ Atomicity — A partial transaction is worse than no transaction at all | Transaction & Consist...
5:17
🔓⚖️ Atomicity — A partial transaction is worse than no transaction at all | Transaction & Consist...

136 views

1 month ago

TechCraft Official
🔓⚖️ Consistency — từ bị lạm dụng nhiều nhất trong software engineering | Transaction &Consistency P4
6:57
🔓⚖️ Consistency — từ bị lạm dụng nhiều nhất trong software engineering | Transaction &Consistency P4

81 views

1 month ago

TechCraft Official
🔒⚖️ Isolation — Why users have to pretend they don't see each other | Transaction & Consistency P5
6:28
🔒⚖️ Isolation — Why users have to pretend they don't see each other | Transaction & Consistency P5

0 views

1 month ago

TechCraft Official
🔒⚖️ Lost Update — The bug that survives code review | Transactions & Consistency P7
6:58
🔒⚖️ Lost Update — The bug that survives code review | Transactions & Consistency P7

0 views

1 month ago

TechCraft Official
🔒⚖️ Dirty Read — Reading Data from Another Reality | Transaction & Consistency P8
7:40
🔒⚖️ Dirty Read — Reading Data from Another Reality | Transaction & Consistency P8

0 views

1 month ago

TechCraft Official
🔒⚖️ Non-repeatable Read — vì sao cùng một query lại ra hai kết quả | Transaction & Consistency P9
7:16
🔒⚖️ Non-repeatable Read — vì sao cùng một query lại ra hai kết quả | Transaction & Consistency P9

0 views

1 month ago

TechCraft Official
🔒⚖️ Phantom Read — khi record xuất hiện từ hư không | Transaction & Consistency P10
8:34
🔒⚖️ Phantom Read — khi record xuất hiện từ hư không | Transaction & Consistency P10

0 views

1 month ago

TechCraft Official
🔒⚖️ Isolation Level — cái giá của việc giả vờ concurrency không tồn tại |Transaction&Consistency P11
7:52
🔒⚖️ Isolation Level — cái giá của việc giả vờ concurrency không tồn tại |Transaction&Consistency P11

0 views

1 month ago

TechCraft Official
🔒⚖️ Distributed Transactions — When ACID Leaves the Database | Transactions & Consistency P14
7:55
🔒⚖️ Distributed Transactions — When ACID Leaves the Database | Transactions & Consistency P14

0 views

1 month ago

TechCraft Official
🔒⚖️ Optimistic Locking — tin trước, kiểm tra sau | Transaction & Consistency P12
8:37
🔒⚖️ Optimistic Locking — tin trước, kiểm tra sau | Transaction & Consistency P12

0 views

1 month ago

✅ 🔐🧠 Data Modeling Pattens

TechCraft Official
Introducing the Data Modeling Patterns Series
7:55
Introducing the Data Modeling Patterns Series

104 views

2 months ago

TechCraft Official
🔓🗄️The 500 Million Problem and the High Cost of the DELETE Command | Data Modeling Patterns P1
8:52
🔓🗄️The 500 Million Problem and the High Cost of the DELETE Command | Data Modeling Patterns P1

83 views

2 months ago

TechCraft Official
🔓🗄️Why Is Soft Delete a Nightmare for Senior Engineers? | Data Modeling Patterns P2
4:48
🔓🗄️Why Is Soft Delete a Nightmare for Senior Engineers? | Data Modeling Patterns P2

81 views

2 months ago

TechCraft Official
🔓🗄️90% đội ngũ kỹ thuật hiểu sai về mục đích thực sự của Audit Log | Data Modeling Patterns P3
7:07
🔓🗄️90% đội ngũ kỹ thuật hiểu sai về mục đích thực sự của Audit Log | Data Modeling Patterns P3

95 views

2 months ago

TechCraft Official
🔓🗄️Is an "Audit Log" enough to restore all past data? | Data Modeling Patterns P4
6:44
🔓🗄️Is an "Audit Log" enough to restore all past data? | Data Modeling Patterns P4

60 views

2 months ago

TechCraft Official
🔒🗄️Why a Routine UPDATE Command Could Get Your Company Sued | Data Modeling Patterns P5
6:57
🔒🗄️Why a Routine UPDATE Command Could Get Your Company Sued | Data Modeling Patterns P5

0 views

2 months ago

TechCraft Official
🔒🗄️Is Storing "Current Data" Enough? | Data Modeling Patterns P6
7:54
🔒🗄️Is Storing "Current Data" Enough? | Data Modeling Patterns P6

0 views

2 months ago

TechCraft Official
🔒🗄️ Banking Database Design: Why You Shouldn't Store a "Balance" Column | Data Modeling P7
6:42
🔒🗄️ Banking Database Design: Why You Shouldn't Store a "Balance" Column | Data Modeling P7

0 views

2 months ago

TechCraft Official
🔒🗄️ Audit Log có đủ không? Sai lầm khi chỉ lưu lịch sử dữ liệu | Data Modeling P8
5:58
🔒🗄️ Audit Log có đủ không? Sai lầm khi chỉ lưu lịch sử dữ liệu | Data Modeling P8

0 views

2 months ago

TechCraft Official
🔒🗄️ Eventual Consistency: Why large-scale systems accept "delayed" data | P9
9:07
🔒🗄️ Eventual Consistency: Why large-scale systems accept "delayed" data | P9

0 views

2 months ago

TechCraft Official
🔒🗄️ Materialized Views Are Not Caches: A Common Developer Mistake | P10
7:05
🔒🗄️ Materialized Views Are Not Caches: A Common Developer Mistake | P10

0 views

2 months ago

TechCraft Official
🔒🗄️ Outbox Pattern: What most Developers get wrong | P11
6:10
🔒🗄️ Outbox Pattern: What most Developers get wrong | P11

0 views

2 months ago

✅ 🔒⚙️Backend Internal

TechCraft Official
🔓⚙️ Backend Internals P1: How a Request Travels Through the Server
5:02
🔓⚙️ Backend Internals P1: How a Request Travels Through the Server

375 views

3 months ago

TechCraft Official
🔓⚙️ Backend Internals P2: Thread per Request vs Event Loop
6:32
🔓⚙️ Backend Internals P2: Thread per Request vs Event Loop

160 views

2 months ago

TechCraft Official
🔓⚙️ Backend Internals P3: Thread Pool — Why Servers Can't Create Infinite Threads
6:43
🔓⚙️ Backend Internals P3: Thread Pool — Why Servers Can't Create Infinite Threads

301 views

2 months ago

TechCraft Official
🔒⚙️ Backend Internals P4: Blocking vs Non-Blocking — What is the Thread Doing While Waiting for I/O?
6:16
🔒⚙️ Backend Internals P4: Blocking vs Non-Blocking — What is the Thread Doing While Waiting for I/O?

0 views

5 months ago

TechCraft Official
🔒⚙️ Backend Internals P5: Connection Pool — Why Doesn't the Server Establish a Connection Every T...
5:48
🔒⚙️ Backend Internals P5: Connection Pool — Why Doesn't the Server Establish a Connection Every T...

0 views

5 months ago

TechCraft Official
🔒⚙️ Backend Internals P6: Memory Allocation — Why Servers Use More RAM Than You Think
6:49
🔒⚙️ Backend Internals P6: Memory Allocation — Why Servers Use More RAM Than You Think

0 views

5 months ago

TechCraft Official
🔒⚙️ Backend Internals P7: Garbage Collection — Ai Dọn Dẹp Memory Trong Server
4:52
🔒⚙️ Backend Internals P7: Garbage Collection — Ai Dọn Dẹp Memory Trong Server

0 views

5 months ago

TechCraft Official
🔒⚙️ Backend Internals P8: Connection Handling — How Servers Handle Thousands of Connections
4:25
🔒⚙️ Backend Internals P8: Connection Handling — How Servers Handle Thousands of Connections

0 views

5 months ago

TechCraft Official
🔒⚙️ Backend Internals P9: Caching — Vì Sao Server Không Query Database Mỗi Lần
5:27
🔒⚙️ Backend Internals P9: Caching — Vì Sao Server Không Query Database Mỗi Lần

0 views

5 months ago

TechCraft Official
🔒⚙️ Backend Internals P10: Cache Stampede — When Cache Causes System Crashes
7:10
🔒⚙️ Backend Internals P10: Cache Stampede — When Cache Causes System Crashes

0 views

5 months ago

TechCraft Official
🔒⚙️ Backend Internals P11: Concurrency — When Multiple Requests Touch One
7:17
🔒⚙️ Backend Internals P11: Concurrency — When Multiple Requests Touch One

0 views

5 months ago

TechCraft Official
🔒⚙️ Backend Internals P12: Distributed Locks — Khi Lock Không Còn Nằm Trong Một Server
6:19
🔒⚙️ Backend Internals P12: Distributed Locks — Khi Lock Không Còn Nằm Trong Một Server

0 views

5 months ago

✅ 🔒🧠 Database Internals

TechCraft Official
🧠Database Thực Sự Lưu Data Như Thế Nào? — 🧠Database Internals P1
6:56
🧠Database Thực Sự Lưu Data Như Thế Nào? — 🧠Database Internals P1

338 views

3 months ago

TechCraft Official
🧠Index — Vì Sao Query Không Cần Scan Toàn Bộ — 🧠Database Internals P2
5:07
🧠Index — Vì Sao Query Không Cần Scan Toàn Bộ — 🧠Database Internals P2

91 views

2 months ago

TechCraft Official
🧠 Vì Sao Query Không Dùng Index (Dù Bạn Đã Tạo) — 🧠Database Internals P3
5:59
🧠 Vì Sao Query Không Dùng Index (Dù Bạn Đã Tạo) — 🧠Database Internals P3

112 views

2 months ago

TechCraft Official
🧠 How Does the Database Decide How to Run Queries? — 🧠 Database Internals P4: Query Execution Plan
6:57
🧠 How Does the Database Decide How to Run Queries? — 🧠 Database Internals P4: Query Execution Plan

0 views

5 months ago

TechCraft Official
🧠 Statistics — Why Databases Make Mistakes and Queries Slow — 🧠 Database Internals P5
6:33
🧠 Statistics — Why Databases Make Mistakes and Queries Slow — 🧠 Database Internals P5

0 views

5 months ago

TechCraft Official
🧠 MVCC — Vì Sao Read Không Block Write — 🧠 Database Internals P6
8:00
🧠 MVCC — Vì Sao Read Không Block Write — 🧠 Database Internals P6

0 views

5 months ago

TechCraft Official
🧠 Database Internals P7: Transactions — Vì Sao Database Phải Rollback
5:37
🧠 Database Internals P7: Transactions — Vì Sao Database Phải Rollback

0 views

5 months ago

TechCraft Official
🧠 Database Internals P8: Isolation Levels — Vì Sao Hai Query Nhìn Thấy Hai Thế Giới Khác Nhau
7:02
🧠 Database Internals P8: Isolation Levels — Vì Sao Hai Query Nhìn Thấy Hai Thế Giới Khác Nhau

0 views

5 months ago

TechCraft Official
🧠 Database Internals P9: Deadlock — Vì Sao Database Tự Kill Query
5:32
🧠 Database Internals P9: Deadlock — Vì Sao Database Tự Kill Query

0 views

5 months ago

TechCraft Official
🧠 Database Internals P10: WAL — Why Database Data Isn't Lost During a Crash
7:02
🧠 Database Internals P10: WAL — Why Database Data Isn't Lost During a Crash

0 views

5 months ago

TechCraft Official
🧠 Database Internals P11: Tại Sao Một Database Là Không Đủ? Hiểu Rõ Về Replication & Replication Lag
6:15
🧠 Database Internals P11: Tại Sao Một Database Là Không Đủ? Hiểu Rõ Về Replication & Replication Lag

0 views

4 months ago

TechCraft Official
🧠 Database Internals P12: Sharding — Khi Một Database Không Còn Đủ
6:37
🧠 Database Internals P12: Sharding — Khi Một Database Không Còn Đủ

0 views

4 months ago

✅ 🧩 System Design

TechCraft Official
System Design là gì? Vì sao code tốt vẫn chưa đủ? | System Design P1
5:15
System Design là gì? Vì sao code tốt vẫn chưa đủ? | System Design P1

6,300 views

10 months ago

TechCraft Official
5 Bước Vàng Giải Mọi Bài System Design: Framework Chuẩn Senior Không Ai Dạy Bạn | System Design P2
7:31
5 Bước Vàng Giải Mọi Bài System Design: Framework Chuẩn Senior Không Ai Dạy Bạn | System Design P2

2,200 views

10 months ago

TechCraft Official
Hiểu Sai Requirements = Toang! Functional vs Non-functional Giải Thích Dễ Hiểu | System Design P3
5:05
Hiểu Sai Requirements = Toang! Functional vs Non-functional Giải Thích Dễ Hiểu | System Design P3

1,600 views

10 months ago

TechCraft Official
System Design không phải đoán mò: 3 con số quyết định kiến trúc | System Design P4
5:48
System Design không phải đoán mò: 3 con số quyết định kiến trúc | System Design P4

1,200 views

10 months ago

TechCraft Official
Nhìn được bức tranh tổng thể, bạn mới thiết kế đúng hệ thống | System Design P5
5:12
Nhìn được bức tranh tổng thể, bạn mới thiết kế đúng hệ thống | System Design P5

1,600 views

10 months ago

TechCraft Official
Microservices vs Monolith: Chọn sai Kiến Trúc Là “Đốt” Cả Năm! Khi Nào Nên Tách? | System Design P6
5:55
Microservices vs Monolith: Chọn sai Kiến Trúc Là “Đốt” Cả Năm! Khi Nào Nên Tách? | System Design P6

1,100 views

10 months ago

TechCraft Official
API Design sai một lần, cả hệ thống trả giá nhiều năm | System Design P7
5:18
API Design sai một lần, cả hệ thống trả giá nhiều năm | System Design P7

961 views

10 months ago

TechCraft Official
Load Balancer: người gác cổng giúp hệ thống không nghẹt thở | System Design P8
5:17
Load Balancer: người gác cổng giúp hệ thống không nghẹt thở | System Design P8

1,000 views

10 months ago

TechCraft Official
Cache Là Gì? Bí Quyết Giúp Hệ Thống Nhanh Gấp 10 Lần Nhưng Ít Người Hiểu Đúng! | System Design P9
7:14
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