33 lines (22 loc) · 1.26 KB

Web Application Architecture

1. Client-Server Architecture

Separating where resources like product information exist and apps that use resources is called 2-tier architecture
Client: App that uses resources
Server: Place that provides resources

2. Characteristics of Client and Server

Client and server have a request-response relationship
In client-server architecture, request comes first, then response follows
Server only plays the role of delivering resources
Space where resources are stored is called database, and form with added DB is called 3-tier architecture

3. Types of Client and Server

Clients are distinguished by platform:
- Client in web platform mainly used through browser: website or web app
- Apps like iOS, Android can also be clients
Servers differ by what they do (mail server, file server, web server, etc.)

4. Client-Server Communication and API

In web application architecture, client and server communicate using HTTP protocol
At this time, server provides interface for clients to utilize resources well, which is called API (Application Programming *Interface) (*Interface: contact point made for communication to be possible)
API documentation must be written for clients to utilize it