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Are these OpenAPI 3 paths ambiguous?

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  • ¿Algo no está bien?
#2,564 7 comentarios 1 reacción 0 asignados Ver en GitHub

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Dificultad
5/5
Tiempo estimado
Más de una semana
Aptitud para principiantes
25/100
Tipo de issue
Documentación
Claridad
Bastante claro
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Estancado
Stack tecnológico
openapi
Área
api, documentation

Línea de trabajo

Lee la sección Paths Object en versions/3.0.0.md y compara sus reglas de coincidencia con los ejemplos /shops/{shopId}/pets/{petId} y /shops/{shopId}/pets/_search de este issue. Revisa la discusión existente antes de decidir si el texto necesita una definición o un ejemplo adicional. Se considera terminado cuando los maintainers están de acuerdo con una redacción aclaratoria de la especificación y se actualiza la sección correspondiente.

Escrito por el modelo de indexación a partir del texto del issue.

Descripción

clarification question request matching

As suggested by @MikeRalphson on Stackoverflow, I'm asking the question here as well.

Are those OpenAPI 3 paths ambiguous?

/shops/{shopId}/pets/{petId}   
/shops/{shopId}/pets/_search

I want to answer no but, strictly reading the spec, I can't decide because they seem to fall into none of the 3 statements made by the spec:

  1. Neither path is concrete (term used in the spec)
  2. Paths don't seem to meet the Templated paths with the same hierarchy but different templated names criteria (that is not very clear to me, here is my understanding: "/shops/{}/pets/{}" != "/shops/{}/pets/_search")
  3. Paths do not look like the ambiguous example

In addition to the question asked on Stackoverflow, let me ask two additional questions (below).

Should the OA3 spec be improved?

@MikeRalphson's reading of the spec: path are not ambiguous because one is more concrete than the other.

If paths are indeed not ambiguous, then the more concrete notion might need to be defined.

How could the OA3 spec be improved?

We might add an example like this:

Assuming paths sharing a common and identical prefix, /shops/{shopId}/pets, the more concrete definition, /shops/{shopId}/pets/_search, will be matched first if used:

  /shops/{shopId}/pets/{petId}
  /shops/{shopId}/pets/_search

Or we might only show minimalistic examples involving templated names, and say that they also apply in case of common and identical prefixes:

First statement (concrete vs template case):

  /{otherPlace}
  /here

Second statement (considered identical and invalid):

  /{id}
  /{name}

Third statement is left unchanged (ambiguous resolution):

/{entity}/me
/books/{id}

Related excerpt of the OA3 spec

The "Paths object" paragraph of the OpenAPI 3 specification (https://github.com/OAI/OpenAPI-Specification/blob/main/versions/3.0.0.md#paths-object) is stating (3 sentences, 3 statements):

When matching URLs, concrete (non-templated) paths would be matched before their templated counterparts. Templated paths with the same hierarchy but different templated names MUST NOT exist as they are identical. In case of ambiguous matching, it's up to the tooling to decide which one to use.

Those 3 statements are followed by 3 examples (and that's it):

Assuming the following paths, the concrete definition, /pets/mine, will be matched first if used:

  /pets/{petId}
  /pets/mine

The following paths are considered identical and invalid:

  /pets/{petId}
  /pets/{name}

The following may lead to ambiguous resolution:

/{entity}/me
/books/{id}
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