Multi-query parameter validation not working #366
Description
Validation for query parameter with multiple values (i.e. array values in form-style query expansion) not working, at least from version 0.13.3 of openapi-core.
Example request:
http://localhost:8000/v1/test?a=1&a=2
Appropriate OpenAPI spec to validate above parameters as a = ['1', '2']:
parameters:
- in: query
name: a
description: Test query parameter.
schema:
type: array
items:
type: string
required: true
Validation error:
openapi_core.unmarshalling.schemas.exceptions.InvalidSchemaValue: Value [['1', '2']] not valid for schema of type array: (<ValidationError: "['1', '2'] is not of type string">,)
Till version 0.13.8 it was possible to "cheat" validation by describing schema as:
parameters:
- in: query
name: a
description: Test query parameter.
schema: {}
required: true
Unfortunately, above workaround not working anymore (from version 0.14.0), but strangely, schema can be described as follows:
parameters:
- in: query
name: a
description: Test query parameter.
schema:
type: array
items:
type: array
items:
type: string
required: true
However, this is not proper way to describe query parameter with multiple values and should be fixed!