SE Engineering - REST

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What is the precursor to REST?

SOAP
What are the features of SOAP systems?
- Standards-based
- XML Messages
- Single function services
- Overly general and inefficient (heavy)
What are the features of RESTful systems?
- Representations on server, instead of client
- JSON Messages
- Stateless access to resources
- Simple and efficient (light)
Which REST HTTP method should be used for updating something?

PUT
Advantages of REST
- Low overhead
- Server-side processing
- Easy implementations with existing websites
- Good for mobile apps
Disadvantages of REST
- Endpoint design can be hard for complex interfaces and resources
- No existing standard
- Developer responsible for quality and reliability
Four rules for rest services
- Uniform interface
- Client-server
- Stateless
- Idempotent
What does idempotence mean?

Accessing the same thing multiple times has the same result each time
Components of a REST request
- Endpoint
- Method
- Header
- Body
What does a 200 error code mean?

Success
What does a 300 error code mean?

Redirected to another URL
What does a 400 error code mean?

Client error
What does a 500 error mean?

Server error
Two antipatterns in REST
- Improper use of query parameters
- Use of verbs as endpoints (should be nouns only)
What does JSON stand for?

Javascript Object Notation
What is JSON?

A self describing text data model
Benefits of (why use) JSON
- Similarities to Javascript code
- East to transmit as test only
- Simple format
Does JSON always need curly braces?

No, only JSON objects need them
Two methods of accessing data in a JSON object?
- Square bracket notation (like a map)
- Dot notation (like a class)
JSON data types
- String
- Number
- JSON Object
- Array
- Boolean
- Null

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Ant

360295

Card Set

SE Engineering - REST

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Updated

2022-12-14T00:03:22Z

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