Rest API

Don’t use verbs in the URL name, not getAllProducts, just Products with a POST request

I shoudl mention that I’ve developed my own APIs

• AWS Webhooks
• Returning the proper status codes, organization
• Versioning
  • v1 and v2

Cache

Kafka can cache on disk

Redis Elastic Search for inverted Index

SQL has some caching too for frequent things

OSI

Physical Layer -> Ethernet connections

Data Link Layer -> Headers and Data and TCP ehaders

Network Layer -> IP

Transport Layer -> TCP vs. UDP

• TCP -> Consistent connection, divides data into segments
• UDP -> video streaming, just sends, faster

Session Layer

API Gateway

Rate limiting Allow-deny list Authentication Parameter validation

Service discovery

API Architecture Styles

SOAP

• Financial services, where security is important
• Comple REST
• Easy to use, common GraphQL
• Only ask for what you need, no over or under
• \Steep learning curve and CPU Grpc
• Limited browser support Web Socket
• Real time conneciton WebHook
• Event driven
• Can notify other machines
• Bad for immediate resposne

API Testing

Smoke testing

• quick test

Functional testing

• detailed testing

Integration testing

• That it works with all the external services and APIs*

Regression testin

• see old broken effecrts

Load testing Stress testing Security testing Fuzz testing

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