False error oas3-valid-schema-example reference resolves to more than one schema #2081

DavidBiesack · 2022-03-07T16:29:55Z

For support questions, please use the Stoplight Discord Community. This repository's issues are reserved for feature requests and bug reports. If you are unsure if you are experiencing a bug, our Discord is a great place to start.

Please delete this section, any any sections below that you don't use, before creating the issue.

Describe the bug
Spectral is generating a strange error when a schema has a property with the name id.

To Reproduce

Given this OpenAPI/AsyncAPI document

openapi: 3.0.3
info:
  title: Spectral Issue
  description: >-
    error oas3-valid-schema-example reference "bf23bc970b78d27691e8" resolves to more than one schema
  version: 0.1.0
  contact:
    name: Apiture

servers:
  - url: /spectral/issues

tags:
  - name: Spectral Issues
    description: Spectral Issues

paths:

  /path:
    get:
      operationId: getResource
      description: Get a resource
      tags:
        - Spectral Issues
      responses:
        '200':
          description: OK.
          content:
            application/json:
              schema:
                $ref: "#/components/schemas/collection"


components:

  schemas:

    item:
      type: object
      properties:
        id:
          description: >-
            The unique identifier for this account resource.
            This is an immutable opaque string.
          readOnly: true
          type: string
          pattern: '^[-_:.~$a-zA-Z0-9]+$'
          minLength: 6
          maxLength: 48
          example: bf23bc970b78d27691e8
        url:
          description: >-
            The URL of this account instance. See the [`getAccount`](#op-getAccount) operation.
          readOnly: true
          maxLength: 256
          type: string
          format: uri
          example: https://api.apiture.com/banking/accounts/bf23bc970b78d27691e8
      example:
        id: bf23bc970b78d27691e8
        url: https://api.apiture.com/banking/accounts/bf23bc970b78d27691e8

    collection:
      required:
        - items
      type: object
      allOf:
        - type: object
          properties:
            items:
              description: The array of items in this page of accounts.
              readOnly: true
              type: array
              items:
                $ref: '#/components/schemas/item'
      example:
        items:
          - id: bf23bc970b78d27691e8
            url: https://api.example.com/spectral/issues/bf23bc970b78d27691e8
          - id: 8d27691e8bf23bc970b7
            url: https://api.example.com/spectral/issues/8d27691e8bf23bc970b7

and this .spectral.yaml
3. Run this CLI command: spectral lint -r ./.spectral.yaml openapi.yaml
4. See error

spectral lint -r ./.spectral.yaml openapi.yaml

./spectral-issues/openapi.yaml
 76:15  error  oas3-valid-schema-example  reference "bf23bc970b78d27691e8" resolves to more than one schema  components.schemas.collection.example

✖ 1 problem (1 error, 0 warnings, 0 infos, 0 hints)

Expected behavior

There should be no error here.

Environment (remove any that are not applicable):

Library version: spectral-cli 6.0.0 (newer versions are not working for me; see running spectral CLI yields ERR_PACKAGE_PATH_NOT_EXPORTED error in @stoplight/spectral-ruleset-bundler/package.json #2080 )
OS: Mac OS
Browser: N/A

The text was updated successfully, but these errors were encountered:

DavidBiesack · 2022-03-07T16:34:41Z

The error goes away if I globally change id: to resourceId:, or if I remove either of the the example objects in the collection or item schemas or just the first array item in the example in collection.

DavidBiesack · 2022-03-07T22:25:56Z

The error seems to be coming from ajv which is validating the examples against the schema; ajv is compiling the schemas from #/components/schemas/* and does not know about the example object that OpenAPI defines, so it is interpreting the id as as schema id. I think spectral needs to remove the example object.

addRef (~/dev/tools/spectral/node_modules/ajv/lib/compile/resolve.ts:112)
<anonymous> (~/dev/tools/spectral/node_modules/ajv/lib/compile/resolve.ts:105)
_traverse (~/dev/tools/spectral/node_modules/json-schema-traverse/index.js:69)
_traverse (~/dev/tools/spectral/node_modules/json-schema-traverse/index.js:75)
_traverse (~/dev/tools/spectral/node_modules/json-schema-traverse/index.js:83)
module.exports (~/dev/tools/spectral/node_modules/json-schema-traverse/index.js:14)
getSchemaRefs (~/dev/tools/spectral/node_modules/ajv/lib/compile/resolve.ts:101)
_addSchema (~/dev/tools/spectral/node_modules/ajv/lib/core.ts:706)
compile (~/dev/tools/spectral/node_modules/ajv/lib/core.ts:377)
<anonymous> (~/dev/tools/spectral/packages/functions/src/schema/ajv.ts:93)
schema (~/dev/tools/spectral/packages/functions/src/schema/index.ts:49)
schema (~/dev/tools/spectral/packages/core/src/ruleset/rulesetFunction.ts:136)
oasSchema (~/dev/tools/spectral/packages/rulesets/src/oas/functions/oasSchema.ts:61)
oasSchema (~/dev/tools/spectral/packages/core/src/ruleset/rulesetFunction.ts:136)
oasExample (~/dev/tools/spectral/packages/rulesets/src/oas/functions/oasExample.ts:153)
oasExample (~/dev/tools/spectral/packages/core/src/ruleset/rulesetFunction.ts:136)
lintNode (~/dev/tools/spectral/packages/core/src/runner/lintNode.ts:30)
cb (~/dev/tools/spectral/packages/core/src/runner/runner.ts:52)
mapped.<computed> (~/dev/tools/spectral/packages/core/src/runner/runner.ts:109)
_callbacks.<computed> (~/dev/tools/spectral/node_modules/nimma/dist/legacy/cjs/runtime/proxy-callbacks.js:31)

Note that example is deprecated in OAS 3.1 in favor of examples in JSON Schema, but it is not yet
deprecated in OAS 3.0.x which the example is using.
I can't switch to OAS 3.1, as other tools we use do not yet support it.

hudlow · 2022-04-29T20:19:04Z

@DavidBiesack Thanks for the work tracking this down. I ran into it independently in case another test case is useful: #2140

sudoku-lord · 2022-06-10T22:29:25Z

Is there any update on this issue? It's causing problems for me.

bwl21 · 2022-06-20T19:09:33Z

@DavidBiesack

I dropped in the same issue while using stoplight studio. I found ajv-validator/ajv#1426 which seems to deal with the same thing.

The error seems to be coming from ajv which is validating the examples against the schema; ajv is compiling the schemas from #/components/schemas/* and does not know about the example object that OpenAPI defines, so it is interpreting the id as as schema id. I think spectral needs to remove the example object.

If this is true, then it appears to be a bug i stoplight studio. When validating the examples, only the schema relevant for the example should be provided to AJV but not the openapi schema, and also not all schemas within the openapi instance.

the openapi schema says in https://swagger.io/specification/#example-object that "examples" can be any. So stoplight should not mess up the schema for openapi and the schemas mentioned within an openapi specification.

venilillkall · 2022-10-11T12:20:24Z

Would be great to get this fixed - we have an API spec that has loads of these, it's super annoying

DavidBiesack · 2022-11-30T16:29:12Z

a workaround is to use unique id values in all the examples, although this is not always possible.

venilillkall · 2022-12-01T08:11:25Z

yes, we also managed to work around this as suggested, but just having to do that is plain silly

padamstx · 2023-02-16T15:28:17Z

Any chance we could get some attention on this issue? My team supports a spectral-based validator along with a ruleset that inherits the spectral:oas ruleset, and we've received reports of this problem with the oas3-valid-schema-example rule, along with reports of a similar issue in the oas3-valid-media-example rule as well.

padamstx · 2023-02-17T23:15:23Z

There might be some hope for this one yet... for the last couple of days, I've been studying the code related to the oas3-valid-schema-example & oas3-valid-media-example rules and trying to understand what's going on. I have a hunch that the resolves to more than one schema error is occurring during the schema compilation with ajv, not during the actual validation of the example value. Also, @DavidBiesack mentioned above:

I think spectral needs to remove the example object.

So with this in mind, and the fact that I really didn't have any other leads 😂, I modified the oasExample() rule function a bit so that it removes any "example" fields in the schema that it's going to pass into oasSchema() to do the actual schema validation of the example value. Surprisingly, that was enough to avoid the false errors. I figured the oasExample() function was the best place to do this, so that other invocations of oasSchema() are not subject to this example filtering.

I still have more testing to do, but I'll try to get a PR opened up for this soon.

This commit modifies the oasExample function so that example fields are removed from the schema to be used for validation. This is needed because the presence of an "example" field in a schema confuses ajv in certain scenarios. References: - stoplightio#2081 - stoplightio#2140 - ajv-validator/ajv#1426

padamstx · 2023-02-22T01:30:37Z

@DavidBiesack I've opened a PR that fixes this issue in case you'd like to give it a try.

This commit modifies the oasExample function so that example fields are removed from the schema to be used for validation. This is needed because the presence of an "example" field in a schema confuses ajv in certain scenarios. References: - stoplightio#2081 - stoplightio#2140 - ajv-validator/ajv#1426

Specifically needed to update 2 rules causing issues with examples: oas3-valid-media-example - causing issues in very weird circumstances with examples that shouldn't be failing. But in spectral? stoplightio/spectral#2081 Custom rule sps-ref-property-name - causing issues in indicating examples needed to use format.

This commit modifies the oasExample function so that example fields are removed from the schema to be used for validation. This is needed because the presence of an "example" field in a schema confuses ajv in certain scenarios. References: - stoplightio#2081 - stoplightio#2140 - ajv-validator/ajv#1426

Most of the issues here are due to ajv having a bug and interpreting `id: <uuid>` as schema id even when they're used in examples. See stoplightio/spectral#2081 Also, we seem to be mixing openapi 3.0.3 and 3.1.0 syntax for examples, which we should clean up at some point.

This commit modifies the oasExample function so that example fields are removed from the schema to be used for validation. This is needed because the presence of an "example" field in a schema confuses ajv in certain scenarios. References: - stoplightio#2081 - stoplightio#2140 - ajv-validator/ajv#1426

* fix(rulesets): avoid false errors from ajv This commit modifies the oasExample function so that example fields are removed from the schema to be used for validation. This is needed because the presence of an "example" field in a schema confuses ajv in certain scenarios. References: - #2081 - #2140 - ajv-validator/ajv#1426 * docs(repo): fix lint warning in README Signed-off-by: Phil Adams <[email protected]> * chore(rulesets): use traverse --------- Signed-off-by: Phil Adams <[email protected]> Co-authored-by: Jakub Rożek <[email protected]>

stoplight-bot · 2023-12-13T12:27:35Z

🎉 This issue has been resolved in version 1.18.1 🎉

The release is available on @stoplight/spectral-rulesets-1.18.1

Your semantic-release bot 📦🚀

P0lip mentioned this issue Apr 29, 2022

Cryptic "reference resolves to more than one schema" errors #2140

Closed

yossydev mentioned this issue Nov 24, 2022

openapi.yamlに関してのlinterを設定 BucketFan/Radio-Openapi#25

Merged

padamstx mentioned this issue Feb 22, 2023

fix(rulesets): avoid false errors from ajv #2407

Closed

4 tasks

padamstx mentioned this issue Feb 23, 2023

fix(rulesets): avoid false errors from ajv #2408

Merged

4 tasks

travisgosselin mentioned this issue Feb 24, 2023

Spectral Rule Sensitivity for Examples SPSCommerce/sps-api-standards#51

Merged

albertyfwu mentioned this issue Mar 10, 2023

fix: broken openapi specs/validation middleware supaglue-labs/supaglue#241

Merged

P0lip closed this as completed in #2408 Apr 25, 2023

mdwheele mentioned this issue Jun 13, 2023

Resolve "reference resolves to more than one schema" errors when AJV processes OpenAPI document and encounters unknown properties whose values include an id parameter. cdimascio/express-openapi-validator#853

Merged

julia-rabello mentioned this issue Nov 9, 2023

KR5 - Review Master Data API v1 vtex/openapi-schemas#1034

Merged

5 tasks

Desislav-Petrov mentioned this issue Nov 18, 2023

Update yarn lock to pick up some bugfixes from dependencies stoplightio/spectral-action#655

Closed

mnaumanali94 reopened this Nov 21, 2023

mnaumanali94 closed this as completed Nov 21, 2023

mnaumanali94 reopened this Nov 21, 2023

mnaumanali94 added the t/bug Something isn't working label Nov 21, 2023

mnaumanali94 added triaged p/high labels Dec 5, 2023

P0lip self-assigned this Dec 12, 2023

P0lip mentioned this issue Dec 12, 2023

fix(rulesets): oasExample should clean id fields from non-schema objects #2561

Merged

4 tasks

P0lip closed this as completed in #2561 Dec 12, 2023

stoplight-bot added the released label Dec 13, 2023

klaude mentioned this issue Dec 28, 2023

An ajv error is falsely reported when validating examples opticdev/optic#2631

Closed

mayer-maximilian mentioned this issue Jun 19, 2024

Exclude OpenAPI Examples from Response Validation cdimascio/express-openapi-validator#931

Open

Provide feedback

Saved searches

Use saved searches to filter your results more quickly

False error oas3-valid-schema-example reference resolves to more than one schema #2081

False error oas3-valid-schema-example reference resolves to more than one schema #2081

DavidBiesack commented Mar 7, 2022

DavidBiesack commented Mar 7, 2022

DavidBiesack commented Mar 7, 2022

hudlow commented Apr 29, 2022

sudoku-lord commented Jun 10, 2022

bwl21 commented Jun 20, 2022 •

edited

Loading

venilillkall commented Oct 11, 2022

DavidBiesack commented Nov 30, 2022

venilillkall commented Dec 1, 2022

padamstx commented Feb 16, 2023

padamstx commented Feb 17, 2023

padamstx commented Feb 22, 2023

stoplight-bot commented Dec 13, 2023

False error oas3-valid-schema-example reference resolves to more than one schema #2081

False error oas3-valid-schema-example reference resolves to more than one schema #2081

Comments

DavidBiesack commented Mar 7, 2022

DavidBiesack commented Mar 7, 2022

DavidBiesack commented Mar 7, 2022

hudlow commented Apr 29, 2022

sudoku-lord commented Jun 10, 2022

bwl21 commented Jun 20, 2022 • edited Loading

venilillkall commented Oct 11, 2022

DavidBiesack commented Nov 30, 2022

venilillkall commented Dec 1, 2022

padamstx commented Feb 16, 2023

padamstx commented Feb 17, 2023

padamstx commented Feb 22, 2023

stoplight-bot commented Dec 13, 2023

bwl21 commented Jun 20, 2022 •

edited

Loading