API / Swagger Interview questions

What is Swagger Editor?

Swagger Editor is a dedicated editor for writing OpenAPI documents in YAML or JSON, available both as a hosted web app and as a tool that can be run locally, offering live validation and a real-time preview pane rendered by Swagger UI as you type.

As you edit the definition, the editor highlights syntax errors and specification violations immediately — a missing required field, an invalid data type, a malformed $ref — rather than only surfacing those problems later when some other tool tries to consume the document and fails.

The live split-pane preview is particularly useful during API design: a team can iterate on how an endpoint's parameters and responses are described and immediately see how that description will actually look to a consumer browsing the rendered documentation, closing the feedback loop between writing the spec and understanding its resulting developer experience.

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What does Swagger Editor validate as you type? The API server's actual uptime

✗ Try again if not.

Syntax errors and specification violations

✓ Correct! Well done.

The developer's typing speed

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What does the live preview pane in Swagger Editor show? A Swagger UI rendering of the document being edited

✓ Correct! Well done.

The server's CPU usage graph

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A list of unrelated APIs

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More Related questions...

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What are the supported formats for writing an OpenAPI document? What is $ref used for in OpenAPI documents? What is Swagger Editor? What is a schema in OpenAPI? List the HTTP methods supported in OpenAPI operations? Describe the components section in OpenAPI 3.0? What is the OpenAPI Specification? What is Swagger UI? Define paths in an OpenAPI document? What are operations in OpenAPI? What is the purpose of the info object in OpenAPI? What are tags used for in Swagger? What is a parameter in OpenAPI, and what are its types? What is a response object in OpenAPI? What is Swagger? What is the purpose of Swagger? What is the difference between Swagger and OpenAPI? What are the key components of Swagger? What is Swagger Codegen? How do you use Swagger annotations in a Java Spring Boot application?

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