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Compare REST and SOAP APIs

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Welcome to your interview.

The question is on your right: Compare REST and SOAP APIs. Take a moment with it first.

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Problem

Explain the differences between REST and SOAP APIs. Compare their message structure, use of HTTP, standards support, and the kinds of systems where each is a better fit.

What to Cover

  • Architectural style vs protocol
  • JSON vs XML message formats
  • HTTP verbs and status codes
  • WSDL, security, and reliability standards
  • Typical use cases and trade-offs

Comparison Prompt

DimensionWhat to Compare
StructureResource-based vs operation-based
PayloadJSON vs XML envelope
StandardsFlexible conventions vs strict protocol standards
Best fitClient-facing APIs vs enterprise integrations