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License: MIT License
Ajv JSON validator for JSON Schema draft-04
License: MIT License
I have a relatively complicated enterprise environment where I am writing some reusable code in my own library, which in turn has multiple dependencies, with multiple places that use AJV. One in particular is @seriousme/openapi-schema-validator - which has the following "simple" dependencies: https://github.com/seriousme/openapi-schema-validator/blob/master/package.json#L10
"dependencies": {
"ajv": "^8.6.0",
"ajv-draft-04": "^1.0.0",
"js-yaml": "^4.1.0"
}
When launching an application using my library, though, I get the following error:
internal/modules/cjs/loader.js:883
throw err;
^
Error: Cannot find module 'ajv/dist/core'
Require stack:
- /home/rolf/bmix/myapp/node_modules/ajv-draft-04/dist/index.js
- /home/rolf/bmix/myapp/node_modules/@seriousme/openapi-schema-validator/index.js
- /home/rolf/bmix/myapp/node_modules/fastify-openapi-glue/lib/parser.js
- /home/rolf/bmix/myapp/node_modules/fastify-openapi-glue/index.js
It's quite clear, that AJV 8.6.0 has ajv/dist/core
, though, BUT, even though both:
what happens is that NPM install "trampolines" ajv-draft-04
to the top-level node_modules
of the application. Both my library and the @seriousme/openapi-schema-validator libraries have AJV 8.6.0 in their "local" node_modules
. The actual version of the top-level node_modules
is 6.12.6 - NPM chooses to de-dup that version, instead of 8.6.0... The tail-end of the npm-ls
looks like:
├─┬ [email protected]
│ ├─┬ @eslint/[email protected]
│ │ └── [email protected] deduped
│ ├── [email protected]
│ └─┬ [email protected]
│ └── [email protected]
└─┬ [email protected]
├─┬ @fastify/[email protected]
│ └── [email protected] deduped
├─┬ [email protected]
│ └── [email protected] deduped
└─┬ [email protected]
└── [email protected] deduped
The end result of this is that ajv-draft-04
and ajv
version 6.12.6
are both at the top-level node-modules
, and that AJV version is not compatible.
I am not sure what to recommend, but, it appears, at this moment, that I have to force dozens of applications to require AJV 8.6.0 at their top level to prevent the dedup
of the wrong version of AJV.
Note, running npm --version
version 6.14.11
- I see there's a change in peerDependency handling with npm 7.... as an enterprise, we are slow to move to version, but will try npm 7
├── [email protected]
├── [email protected]
const Ajv = require('ajv-draft-04')
const ajvJson4Schema = require('../schemas/json-schema-draft-04.json')
let _ajvOptions = {
strict: false,
strictSchema: true,
strictTypes: true,
verbose: true,
allErrors: true
}
let _draft4Validator = null
let schema = {
"$schema": "http://json-schema.org/draft-04/schema#",
"title": "ActivityLogs",
"description": "Activity Logs for a specific associate",
"type": "object",
"properties": {
"activityLog": {
"type": "string"
}
}
}
let results
try {
if (_draft4Validator == null) {
let ajv = new Ajv(_ajvOptions)
_draft4Validator = ajv.compile(ajvJson4Schema)
}
let valid = _draft4Validator(schema)
results = {
valid: valid,
error: _draft4Validator.errors
}
} catch (err) {
results = {
valid: false,
error: err
}
}
$ node index.js
{
valid: false,
Exception has occurred: Error: schema with key or id "http://json-schema.org/draft-04/schema" already exists
at Ajv._checkUnique (c:\Users\fieljere\ajvtest\node_modules\ajv\dist\core.js:465:19)
at Ajv._addSchema (c:\Users\fieljere\ajvtest\node_modules\ajv\dist\core.js:456:22)
at Ajv.compile (c:\Users\fieljere\ajvtest\node_modules\ajv\dist\core.js:158:26)
at Object.<anonymous> (c:\Users\fieljere\ajvtest\index.js:34:28)
at Module._compile (node:internal/modules/cjs/loader:1103:14)
at Object.Module._extensions..js (node:internal/modules/cjs/loader:1155:10)
at Module.load (node:internal/modules/cjs/loader:981:32)
at Function.Module._load (node:internal/modules/cjs/loader:822:12)
at Function.executeUserEntryPoint [as runMain] (node:internal/modules/run_main:77:12)
at node:internal/main/run_main_module:17:47
I'm trying to import this package into the latest version of ajv and when I execute it, i'm receiving an error for schema key or id already exists
I don't have id
used in all of my schemas and even when it is present, with different values, the error persists.
Can you please help me with this error?
Thanks so much!
Receiving the following error when using this module:
Error: Cannot find module 'ajv/dist/core'
at Function.Module._resolveFilename (internal/modules/cjs/loader.js:636:15)
at Function.Module._load (internal/modules/cjs/loader.js:562:25)
at Module.require (internal/modules/cjs/loader.js:692:17)
at require (internal/modules/cjs/helpers.js:25:18)
at Object. (node_modules/ajv-draft-04/dist/index.js:4:16)
at Module._compile (internal/modules/cjs/loader.js:778:30)
at Object.Module._extensions..js (internal/modules/cjs/loader.js:789:10)
at Module.load (internal/modules/cjs/loader.js:653:32)
at tryModuleLoad (internal/modules/cjs/loader.js:593:12)
at Function.Module._load (internal/modules/cjs/loader.js:585:3)
at Module.require (internal/modules/cjs/loader.js:692:17)
at require (internal/modules/cjs/helpers.js:25:18)
at Object. (node_modules/openapi-to-postmanv2/lib/ajValidation/ajvValidatorDraft04.js:1:13)
at Module._compile (internal/modules/cjs/loader.js:778:30)
at Object.Module._extensions..js (internal/modules/cjs/loader.js:789:10)
at Module.load (internal/modules/cjs/loader.js:653:32)
at tryModuleLoad (internal/modules/cjs/loader.js:593:12)
at Function.Module._load (internal/modules/cjs/loader.js:585:3)
at Module.require (internal/modules/cjs/loader.js:692:17)
at require (internal/modules/cjs/helpers.js:25:18)
at Object. (node_modules/openapi-to-postmanv2/lib/ajValidation/ajvValidation.js:6:34)
at Module._compile (internal/modules/cjs/loader.js:778:30)
Check the highlighter line in the error.
It only works with HTTP
"$schema": "http://json-schema.org/draft-04/schema#",
Is it intentional? Docs mention that one should be able to refer HTTPS
"$schema": "https://json-schema.org/draft-04/schema#",
Heya,
I've just been caught out by some format validation on my draft-04 spec.
format: date
was introduced in draft-7 - but was not present in draft-4.
format: date-time
appears to not have been introduced in draft-6 or draft-7 - but I can't figure out where to find it originally defined.
Reading through the AJV docs; due to the problems inherent with format, it's been moved to ajv-formats as a standalone library.
Appreciate this may be a noddy question, but how would I work out which of those formats were compatible with draft-04 (as date-time appears to be valid, but date and time individually are not)?
Happy to assist if the job is reading through a spec and workout how to leverage a subset of ajv-formats that is draft-04 specific.
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