strictRequired error when required properties exists and are declared inside oneOf

Using version 8.1.0 with strict mode enabled, an error of type strictRequired is thrown when required properties are declared inside oneOf even if those properties are defined next to oneOf.

Ajv options object

const ajv = new Ajv({
  strict: true,
})

JSON Schema

{
  "type": "object",
  "properties": {
    "property_a": {
      "type": "string",
    },
    "property_b": {
      "type": "string",
    },
  },
  "anyOf": [
    { "required": [ "property_a" ] },
    { "required": [ "property_b" ] }
  ]
}

Sample data

{
  property_a: 'ok'
}

Your code

The code posted on runkit throw an error with the message strict mode: required property "property_a" is not defined at "#/anyOf/0" (strictRequired) (after switching from stack trace viewer to properties viewer in the UI)

What results did you expect?

Unless I am misunderstanding something, I expect the code to be valid since property_a is defined inside properties.

Are you going to resolve the issue?

This probably requires a deep understanding of Ajv internals.

[LucasBrazi06]

Have you planned a fix for this issue? When?

[epoberezkin]

You’re welcome. Let’s keep it open - it’s a limitation, not the optimal behaviour.