Union type validation only checks against first definition

[nikos]

It seems to me like JSV takes only the very first union constraint for validation, but not any subsequent. My JSON schema definition looks like ...

{
    "type":"object",
    "additionalProperties":false,
    "properties":{
        "imgs":{
            "type":"array",
            "title":"Images",
            "items":[
                {
                    "type":"object",
                    "additionalProperties":false,
                    "properties":{
                        "image_url":{
                            "title":"Image (intern)",
                            "type":"string",
                            "format":"uri"
                        }
                    }
                },
                {
                    "type":"object",
                    "additionalProperties":false,
                    "properties":{
                        "flickr_url":{
                            "title":"Image (flickr)",
                            "type":"string",
                            "format":"uri"
                        }
                    }
                }
            ]
        }
    }
}

It is fine for

{
"imgs":[
  {"image_url":"http://example.org"}
]
}

but not

{
"imgs":[
  {"flickr_url":"http://example.org"}
]
}

Any help would on this would be very much appreciated, thanks for your time, Niko

[garycourt]

The array version of "items" is tuple typing. You need to use "additionalItems" along with union types.