REST architectural styles

The REST architectural style describes six constraints. These constraints were originally described by Roy Fielding in his Ph.D. thesis ( https://www.ics.uci.edu/~fielding/pubs/dissertation/rest_arch_style.htm). They include the following:

• Uniform interface
• Stateless
• Cacheable
• Client-server architecture
• A layered system
• Code on demand (optional)

We will discuss them all minutely in the following subsections.