writing to private singletons from REST api

[dusty-phillips]

I have a preferences table that is indexed with private singletons. I can get this table by accessing this path:

const encodedSettingsId = encodeURIComponent(`#settings:${userId}`)
const path = `/all/preferences/${encodedSettingsId}`

The id of the returned object looks like this:

	"#settings:8IzD5unb5idu0dcTeQcZRUYF"

However, I can't for the life of me figure out how to write a value back to this entity. I'm doing a POST to /all/preferences with an object that has the same id:

{
	"id": "#settings:8IzD5unb5idu0dcTeQcZRUYF",
	"realmId": "8IzD5unb5idu0dcTeQcZRUYF",
	"displayName": "foo",
       // other values
}

I get a 200 response. But the changed values do not get stored to the db.

I checked dexie-cloud export and it doesn't seem to be creating an unexpected object with a different id. It just seems to be accepting my POST and ignoring the contents. Am I formatting something incorrectly or is writing to private keys intentionally or accidentally not supported?

Note: Leaving realmId off the posted object results in a 400 error.

[dfahlander]

Thanks, I'll look into it

[dusty-phillips]

@dfahlander, No pressure, but do you think it will be a quick fix or should I look for a workaround that uses non-singleton keys?

[dfahlander]

Thanks for reminder. Is the realmId a userId or an id of a real Realm object?

[dfahlander]

Oh, here's the reason: Private singletons must have a timestamp property called '$ts' on them or else they won't be saved. All properties starting with '$' are also escaped to start with double $ ('$$'). So basically, POST the object as:

{
	"id": "#settings:8IzD5unb5idu0dcTeQcZRUYF",
	"realmId": "8IzD5unb5idu0dcTeQcZRUYF",
	"displayName": "foo",
       // other values
        "$$ts": Date.now()
}

I suppose this might be missing in the docs. Dexie cloud addon will do that when using put() but not using add(). It's a way to enable table.add(privateSingleton) to only be added ever once, while table.put(privateSingleton) will replace existing.

[dusty-phillips]

That solves it, thanks! I think it is indeed missing in the docs; I did look.

[dfahlander]

Thanks! I should update the docs.