Cannot filter posts by reading_time

Using Ghost
1

GET to https://faithonline.ghost.io/ghost/api/content/posts/?key=ghost_content_api_key&&filter=reading_time%3A>1
throws 400 with body
{
“errors”: [
{
“message”: “Request not understood error, cannot list posts.”,
“context”: “Could not understand request.”,
“type”: “BadRequestError”,
“details”: null,
“property”: null,
“help”: null,
“code”: “ER_BAD_FIELD_ERROR”,
“id”: “08a24ad0-4949-11f1-bf0e-b7ec6db9ea99”,
“ghostErrorCode”: null
}
]
}

2

Reading time is a computed property, rather than a stored value, so you unfortunately can’t filter on it