unique-response-header

Overview

This rule belongs to the swagger-v2-standards-validation ruleset and states that:

Response header keys are patterned fields that must have unique values within the Headers Object. The keys represent the names of the headers for each response.

Property	Value
Enabled	Yes
Maximum Severity	Error
Message	Duplicate response header entry found.
Code	SWAGGER20STANDARDS_V220
Type	Validation
Rule System	Semantic
Broad Category	Response Headers
Products Impacted	API Transformer, Code Generation, Developer Experience Portal
Tags	swagger2 swagger standards semantic validation response header headers

Suggested Fixes

• Remove duplicate response header entries from the Headers Object.
• Header key value is compared in a case-sensitive manner.

For More Information

• https://github.com/OAI/OpenAPI-Specification/blob/main/versions/2.0.md
• https://github.com/OAI/OpenAPI-Specification/blob/main/versions/2.0.md#format
• https://github.com/OAI/OpenAPI-Specification/blob/main/versions/2.0.md#patterned-fields-4
• https://docs.apimatic.io/rulesets/overview/