백엔드 개발 이 영상만 보셔도 거의

Summary

This video discusses the basics of backend development, focusing on the importance of understanding both the frontend and backend perspectives. The speaker introduces the concept of app development and its flow from user interactions on the frontend to server-side operations. Emphasizing the role of API servers, the speaker covers various technologies, including REST, and the importance of understanding architecture, data communication, and infrastructure. The video also touches on the need for backend developers to grasp authentication, authorization, and cloud infrastructure, while explaining key concepts like OAuth and API gateways.

Takeaways

• 😀 The importance of understanding both front-end and back-end development perspectives is emphasized, as they are interdependent.
• 😀 The script begins with an explanation of app development and introduces a holistic view of back-end development, including both the app and the entire system.
• 😀 Back-end developers should have a clear understanding of the entire architecture, from front-end communication to server-side processes.
• 😀 The focus is on understanding the flow of data, such as how user actions on an app can trigger server-side functionality.
• 😀 An in-depth knowledge of technologies like Java, Spring, API specifications, protocols, data storage, and infrastructure is required for back-end developers.
• 😀 The back-end is responsible for handling the server-side and managing communication with front-end apps, data storage, and infrastructure.
• 😀 The script explains the flow between different devices (Android, IoT, web) and their interaction with the server, via API or web servers.
• 😀 A distinction is made between APIs (which handle data exchange) and web servers (which serve content displayed in browsers).
• 😀 The script highlights various development technologies, including native Android/iOS apps, React, React Native, and web development tools.
• 😀 REST is identified as the primary protocol for APIs, though other protocols like GraphQL and gRPC are also mentioned.
• 😀 Authentication and authorization are discussed, with a focus on managing user permissions and determining access levels (e.g., user vs. admin functionalities).

Q & A

What is the focus of the script regarding backend development?

The script focuses on introducing backend development, particularly emphasizing the importance of understanding the entire system architecture, including the relationship between the frontend and backend, as well as various components like APIs, servers, and data storage.

Why is understanding both frontend and backend important for backend developers?

It is important because backend developers need to understand how the frontend interacts with the backend. This includes the flow of data, API calls, and the overall system architecture, enabling them to create effective and efficient solutions that connect both sides.

What two perspectives does the speaker suggest when learning backend development?

The speaker suggests considering two perspectives: the app itself (the user's interaction with the app) and the overall system architecture (how the app interacts with servers, APIs, and data storage).

What is the role of an API server in backend development?

An API server handles the communication between the client (frontend) and the backend system, providing a way for data to be exchanged between them through APIs (Application Programming Interfaces).

What is the difference between frontend and backend in the context of development?

Frontend focuses on the user interface (UI) and user experience (UX) elements, such as the layout and design of a website or app. Backend, on the other hand, manages server-side functions, data storage, APIs, and overall system logic.

Why is understanding the full flow from the frontend to backend critical for backend developers?

Understanding the full flow is crucial because backend developers need to ensure that the server, APIs, and database are aligned with the needs of the frontend. This allows for seamless communication and efficient data exchange between the two sides.

What are the key technologies mentioned for developing the frontend and backend?

For frontend development, technologies like Android (Java/Kotlin), iOS (Swift), React, and frameworks like React Native and Flutter are mentioned. For backend, Java and Spring are highlighted, along with knowledge of API specifications, protocols, and server-side architecture.

What is the difference between React and React Native as explained in the script?

React is used for developing websites and web applications, whereas React Native is specifically for building mobile apps. While both share similar concepts, React Native allows developers to build native apps using JavaScript and React.

How does the script explain the difference between API servers and web servers?

The script explains that API servers handle the data exchange between the client and the server through APIs, while web servers manage the content that is displayed to users via websites. API servers focus on data, while web servers focus on delivering HTML content to browsers.

What is the significance of understanding API protocols like REST in backend development?

Understanding API protocols like REST is important for backend developers because it allows them to design and implement efficient, scalable, and secure communication between the frontend and backend systems. REST is widely used due to its simplicity and ease of integration.