Nanyang Technological University · API Governance Rules

Nanyang Technological University API Rules

Spectral linting rules defining API design standards and conventions for Nanyang Technological University.

7 Rules error 2 warn 5

View Rules File View on GitHub

Rule Categories

ntu

Rules

warn

ntu-info-contact

API info should declare a contact for the NTU repository team.

$.info

warn

ntu-info-version

Info version should be present (DR-NTU surfaces platform version).

$.info

error

ntu-https-servers

All NTU server URLs must use HTTPS.

$.servers[*].url

warn

ntu-server-host

Servers should point at an ntu.edu.sg host.

$.servers[*].url

error

ntu-operation-id

Every operation should declare an operationId.

$.paths[*][get,post,put,delete,patch]

warn

ntu-operation-tags

Operations should be tagged for grouping.

$.paths[*][get,post,put,delete,patch]

warn

ntu-2xx-response

Each operation should document a success response.

$.paths[*][get,post,put,delete,patch].responses

Spectral Ruleset

# x-operator: institution — this ruleset is asserted BY API Evangelist over NTU's
# institution-operated DR-NTU (Data) contracts. It is not published by NTU.
x-generated: '2026-08-19'
x-method: generated
x-source: openapi/ntu-info-api-openapi.yml, openapi/ntu-search-api-openapi.yml
formats:
  - oas3
rules:
  ntu-info-contact:
    description: API info should declare a contact for the NTU repository team.
    given: $.info
    severity: warn
    then:
      field: contact
      function: truthy
  ntu-info-version:
    description: Info version should be present (DR-NTU surfaces platform version).
    given: $.info
    severity: warn
    then:
      field: version
      function: truthy
  ntu-https-servers:
    description: All NTU server URLs must use HTTPS.
    given: $.servers[*].url
    severity: error
    then:
      function: pattern
      functionOptions:
        match: '^https://'
  ntu-server-host:
    description: Servers should point at an ntu.edu.sg host.
    given: $.servers[*].url
    severity: warn
    then:
      function: pattern
      functionOptions:
        match: 'ntu\.edu\.sg'
  ntu-operation-id:
    description: Every operation should declare an operationId.
    given: $.paths[*][get,post,put,delete,patch]
    severity: error
    then:
      field: operationId
      function: truthy
  ntu-operation-tags:
    description: Operations should be tagged for grouping.
    given: $.paths[*][get,post,put,delete,patch]
    severity: warn
    then:
      field: tags
      function: truthy
  ntu-2xx-response:
    description: Each operation should document a success response.
    given: $.paths[*][get,post,put,delete,patch].responses
    severity: warn
    then:
      function: schema
      functionOptions:
        schema:
          type: object
          anyOf:
            - required: ['200']
            - required: ['201']
            - required: ['204']

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