REST stands for Representational State Transfer
5 key principles of REST are –
- Give everything a ID
- Link things together
Links help to refer to identifiable things
- Use standard methods
GET- To retrieve a representation. Its idempotent, meaning that has no additional effect if it is called more than once with the same input parameters
PUT – update this resource with this data, or create it at this URI if it’s not there already. Its idempotent.
DELETE – delete a resource. Its idempotent.
POST – create a new resource. Its not idempotent.
- Resources with multiple representations
Provide multiple representations of resources for different needs.
- Communicate statelessly
A server should not have to retain some sort of communication state for any of the clients it communicates with beyond a single request. The most obvious reason for this is scalability — the number of clients interacting would seriously impact the server’s footprint if it had to keep client state.