1.3 KiB
1.3 KiB
Dispostioner
Accessing and Developing the Web of Things
Developing networks
Different patterns for developing
- Directly (running on the Thing itself)
- Through a gateway (facading the Thing with a Web based gateway)
- Through a cloud service (relying on Cloud services to provide access, like we did in milestone 3)
Different protocols, structures, ways of communication
Five constraints of REST
- Client/server
- Uniform interfaces (JS project)
- Stateless
- Cacheable
- Layered system
Principles
- #1 : Addressable resources, naming, hierarchical
- #2 : manipulation of resources through representations
- #3 : Self-descriptive messages, GET, POST, PUT, DELETE, cors
- #4 : Hypermedia as the Engine of Application State, HATEOAS.
Design rules
- #1 : Addressable resources, Web Things must be an HTTP server, must have root resource accessible via an HTTP URL, should use a secure HTTP connection (HTTPS), must expose properties using a hierarchical structure.
- #2 : Web Things must support JSON as their default representation, must support UTF8 encoding for requests/response, may offer an HTML interface/representation
- #3 : Self-descriptive messages, Web Things must support GET, POST, PUT, DELETE, they must implement HTTP status codes 20x, 30x, 40x, 50x, must support a GET on root URL, should support CORS