𝗧𝗵𝗲 𝗝𝗼𝘂𝗿𝗻𝗲𝘆 𝗼𝗳 𝗮 𝗥𝗲𝗾𝘂𝗲𝘀𝘁

𝗧𝗵𝗲 𝗝𝗼𝘂𝗿𝗻𝗲𝘆 𝗼𝗳 𝗮 𝗥𝗲𝗾𝘂𝗲𝘀𝘁

You argue about languages. You debate Go versus Rust. You forget the path a request takes before it hits your code.

Here are the layers:

• CDN: Servers near your users. They store data. Users get files fast.
• WAF: A security guard. It blocks bad traffic. It stops attacks.
• Load Balancer: This splits traffic. It sends requests to free servers. It prevents crashes.
• API Gateway: This checks your ID. It verifies access.
• Reverse Proxy: This directs requests to the right service.
• Rate Limiting: This stops request floods. It uses Redis counters. It saves your CPU.
• Input Sanitization: Users lie. They send bad scripts. Clean your data.

This is a brief look at the process. I will explain each layer in new articles.

Source: https://dev.to/kishanag028/the-journey-of-a-request-what-happens-before-your-code-even-runs-46pp