Question about block metadata; visible / user properties, hidden / system properties. How to view all?

Questions & Help
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1

I am looking to develop a plugin that inspects metadata of blocks which are flashcards.

The block object had a different structure than I expected and I wanted to better understand block properties and how to manage them correctly

Example card block

{
    "properties": {
        "cardLastInterval": "11.2",
        "cardRepeats": 3,
        "cardEaseFactor": "2.8",
        "cardNextSchedule": "2024-02-09T00:34:37.551Z",
        "cardLastReviewed": "2024-01-28T20:34:37.551Z",
        "cardLastScore": 5
    },
    "parent": {
        "id": 30024
    },
    "id": 30023,
    "pathRefs": [
        {
            "id": 2
        },
        {
            "id": 30000
        },
        {
            "id": 30001
        }
    ],
    "propertiesTextValues": {
        "cardLastInterval": "11.2",
        "cardRepeats": "3",
        "cardEaseFactor": "2.8",
        "cardNextSchedule": "2024-02-09T00:34:37.551Z",
        "cardLastReviewed": "2024-01-28T20:34:37.551Z",
        "cardLastScore": "5"
    },
    "uuid": "65da8fcd-78d8-4d0b-873d-ddd4e97ad721",
    "content": "What is the chain rule? #card #math\ncard-last-interval:: 11.2\ncard-repeats:: 3\ncard-ease-factor:: 2.8\ncard-next-schedule:: 2024-02-09T00:34:37.551Z\ncard-last-reviewed:: 2024-01-28T20:34:37.551Z\ncard-last-score:: 5",
    "page": {
        "journalDay": 20230527,
        "name": "may 27th, 2023",
        "originalName": "May 27th, 2023",
        "id": 30000
    },
    "propertiesOrder": [
        "cardLastInterval",
        "cardRepeats",
        "cardEaseFactor",
        "cardNextSchedule",
        "cardLastReviewed",
        "cardLastScore"
    ],
    "left": {
        "id": 30035
    },
    "format": "markdown",
    "refs": [
        {
            "id": 2
        },
        {
            "id": 30001
        }
    ]
}

Expected

User added metadata is not included in properties list

I expected card and math to ALSO be included in the list of properties
It seems this metadata is ONLY accessible from parsing the content property which seems like a very brittle programming given the interchangable # and [[ ]].

Properties added by logseq when a block is recognized as card are not visible in the editor

Given I see properties programmatically, and I know I can manually add properties to a block with the key:: value syntax I expected to see content list this in the editor such as:

card-ease-factor:: 2.8
card-next-schedule:: 2024-02-09T00:34:37.551Z
card-last-interval:: 11.2
card-last-reviewed:: 2024-01-28T20:34:37.551Z
card-last-score:: 5
card-repeats:: 3,

Questions

  1. Is there an official method to parse the block content to extract user metadata?
    In the example block above it would return “card” and “math”, and possibly the other properties too.
    I am currently using RegEx but it seems like there must be a better way the logseq.Editor api exists.

  2. Is there a way to view ALL properties in Editor regardless of them being added by system / hidden?

I have set :block-hidden-properties #{} in both global config.edn and local config.edn expecting this to mean do NOT hide any properties thus revealing ALL the card properties; however, the internal card properties are still not visible.

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