InvalidPointerError: Invalid $ref pointer. Pointers must begin with "#/"

[Envek]

I tried to use json2ts with complex schema which uses references to elements in another schema (see examples below), but got following error:

  code: 'EINVALIDPOINTER',
  message: 'Invalid $ref pointer "email". Pointers must begin with "#/"',
  source: '/home/envek/types.json',
  name: 'InvalidPointerError',

This probably caused by APIDevTools/json-schema-ref-parser#42, also see APIDevTools/json-schema-ref-parser#136

It (possibly) can be solved by APIDevTools/json-schema-ref-parser#141 (I tried to pull, rebase, and use it, but got stuck in TypeScript errors about JSONSchema4 vs JSONSchema6 incompatibilites).

Steps to reproduce:

person.json

{
  "title": "Example Schema",
  "type": "object",
  "properties": {
    "fullName": {
      "type": "string"
    },
    "emailAddress": {
      "allOf": [{ "$ref": "types.json#email" }]
    }
  },
  "additionalProperties": false,
  "required": ["fullName", "emailAddress"]
}

types.json

{
  "$id": "https://example.com/example.json",
  "$schema": "http://json-schema.org/draft-04/schema#",
  "types": {
    "email": {
      "$id": "#email",
      "type": "string",
      "format": "email"
    }
  }
}

json2ts person.json

Expected result:

person.d.ts

export interface ExampleSchema {
  fullName: string;
  emailAddress: string;
}

Any workarounds?

Is there a way to workaround this? Real schemas I want to process are huge and full of such $id-references…

[bcherny]

Thank you for the report + investigation. Mind filing this in the json-schema-ref-parser repo, and comment back when the fix has been merged so we can upstream it here?