API Testing · question
Q.02 of 21
What are the different types of APIs?
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REST APIs: HTTP-based, stateless architecture
- Most common type using JSON/XML
- Follows REST architectural principles
- Simple and widely supported
SOAP APIs: XML-based protocol with formal structure
- Built-in error handling and security (WS-Security)
- More rigid but enterprise-friendly
- Contract-first approach with WSDL
GraphQL APIs: Query language with single endpoint
- Client specifies exact data requirements
- Strongly typed schema
- Reduces over-fetching and under-fetching
WebSocket APIs: Real-time bidirectional communication
- Persistent connections for live updates
- Ideal for chat, gaming, or streaming applications
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