chore(deps): update dependency external/openapi-specification to v3.2.0

[renovate]

This PR contains the following updates:

Package	Update	Change
external/openapi-specification	minor	3.1.1 -> 3.2.0

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Release Notes

OAI/OpenAPI-Specification (external/openapi-specification)

v3.2.0: OAS 3.2.0 Released!

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Headline features

• Multipurpose tags, with nesting

  • summary field to allow short descriptions, used when displaying lists of tags.
  • parent field to point to the tag that this tag is nested under.
  • kind field to allow a tag to be classified into a category such as navigation, or audience.
    The kind field is free-form text, however there are some expected/conventional values such as nav (in line with the most common current usage as grouping for documentation output).
  • A registry to establish conventions for values used in kind.

• Support for additional HTTP methods

  • Support the new query method alongside the existing get/post/put/delete/options/head/patch/trace.
  • Under an additionalOperations entry in a Path, use any other methods not listed as keys using the correct capitalization, e.g. LINK. Do NOT add HEAD under this, use the existing sibling head.

• Document identity and URL resolution

  • Additional top-level field $self is added to allow users to define the base URI of the document, used to resolve relative references.
  • More explanation and examples regarding URL resolution.

Data modeling and representation

• Streaming support: sequential media types including SSE

  • Support for sequential media types such as text/event-stream for server-sent events (SSE) and multipart/mixed, application/jsonl, application/json-seq and others for sequential data.
  • Responses can be a repeating data structure, and are treated as if they are an array of Schema Objects.
  • Use itemSchema in a mediatype entry to describe each item.
  • A media types registry is published to give more context for each of the media types.

• Parameter and header changes

  • Additional parameter location querystring, to allow parsing the entire query string as a single field similar to the way a request body is handled, using the content field.
  • Parameters can therefore be in the querystring as an alternative to the existing header, cookie, query and path values.
  • allowReserved field is now permitted on headers and on parameters with any value of in, and applies where the combination of in and style automatically percent-encode the value.

• New style option for cookies

  • Additional style option cookie for content in a cookie, which uses semicolon as a separator and does not encode data values.

• Additions to support multipart media types

  • New itemSchema field, for the schema that describes each of the items in a sequential media type.
  • New fields prefixEncoding and itemEncoding can be used instead of encoding for multipart media types.
  • The specification also contains examples of sequential JSON and Server-Sent events that show these fields in use.

• Improvements for APIs using XML as a content format

  • New nodeType field allows mapping schemas to common XML node types: element, attribute, text, cdata, or none.
  • attribute: true is now deprecated in favor of nodeType: attribute.
  • wrapped: true is now deprecated in favor of nodeType: element (as nodeType defaults to none for arrays to preserve compatibility).
  • The xml keyword can be used in any Schema Object.
  • XML namespaces can be IRIs (rather than URIs).
  • Explanation and examples for many use cases including handling null, handling arrays, replacing the name, and handling ordered elements.
  • Clarify that the root schema of an XML Object should use the component name.

• Examples as either structured or serialized values

  • The Example Object (used in examples fields) gets two new fields: dataValue and serializedValue.
  • dataValue describes the example in structured format.
  • serializedValue shows how the example will be formatted when it is sent/received by the API.
  • The existing externalValue field can still be used to give a reference to an example, but this is now clearly documented as being a serialized value.

Additional features

• Updated security schemes

  • Support for OAuth2 Device Authorization flow with additional deviceAuthorization field in the flows object and for the individual flow, a new field deviceAuthorizationUrl alongside tokenUrl.
  • Additional security scheme field: oauth2MetadataUrl URL for auth server metadata, as described by the OAuth2 Server Metadata Standard.
  • Additional deprecated field for security schemes (indicating that the scheme may still be supported, but that it should not be used).
  • Ability to reference a security scheme by URI rather than declaring it in components.

• Improvements to the Server Object

  • Clarify that server URLs should not include fragment or query.
  • Support new name field alongside description, url and variables.
  • Formal ABNF syntax for the allowed variable substitution in server urls, alongside guidance that each variable can only be used once in a URL.

• Better polymorphic support

  • The discriminator propertyName can now be an optional field.
  • New field defaultMapping to indicate which schema to use if the propertyName is not set, or if the value is unrecognized.

• Templates with formal syntax

  • The specification now includes ABNF (Augmented Backus–Naur Form) for path templating, server variables, and runtime expressions in the Link Object.

• Flexible metadata fields in the Response Object

  • description field for responses is now optional.
  • Additional summary field for responses.

• Additional updates

  • A new key mediaTypes is supported under components to support re-use of Media Type Objects.

• Updates to referenced standards

  • Update to https://www.ietf.org/archive/id/draft-bhutton-json-schema-01.html of JSON Schema Specification.
  • Update to https://www.ietf.org/archive/id/draft-bhutton-json-schema-validation-01.html of JSON Schema Validation Specification.
  • Use RFC8529 for JSON.
  • Use RFC9110 for HTTP.

• Editorial changes

  • Extensive additions around media types, encoding, sequential media types, SSE examples, working with binary data.
  • Streamlined to YAML examples (unless something specific to another format) to try to make it easier to follow.
  • Better explanation and examples for using Encoding and Serialization, and a note not to apply percent-encoding to headers.
  • Clarify that Request Body Objects need to specify at least one media type to be meaningful.
  • How to more clearly indicate that responses will not have a body.
  • Explanation and examples of headers including Link and Set-Cookie.
  • Detailed explanation of percent-encoding and -decoding, updated examples and references to match, including the Style Examples table.
  • Extensive additional notes on parsing and serializing JSON and non-JSON data formats.

v3.1.2: OAS 3.1.2 Released!

Compare Source

Version 3.1.2 has no material changes but does contain editorial fixes, additional examples, and clarifications.

• Clarify that $ref in a Schema Object is a JSON Schema $ref keyword.
• Detailed explanation of percent-encoding and -decoding, updated examples and references to match, including the Style Examples table.
• Better explanation and examples for using Encoding and Serialization, and a note not to apply percent-encoding to headers.
• Clarify that Request Body Objects need to specify at least one media type to be meaningful.
• How to more clearly indicate that no response will have a body.
• How to handle null in XML as an advisory note; since the functionality cannot be changed it is implementation-defined for 3.1 tooling.
• Clarify that the root schema of an XML object should use the component name.

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