Modifying GeoJSON source

[luixo]

I'm building an app with dynamic markers. My first attempt to update them was just removing layer & source and adding new ones, but the view was flickering on each update.
Then I found a setData method for source, but it throws with an error: Uncaught DataCloneError: Failed to execute 'postMessage' on 'Worker': An object could not be cloned.
I made an example: https://jsfiddle.net/mr0pzv5c/

[lucaswoj]

map.getSource('route').setData(source);

You're supposed to pass GeoJSON to setData, not an instance of GeoJSONSource.

[luixo]

Thanks! Is there a way to add data instead of overwriting it?

[mcwhittemore]

@luixo, not currently. Maybe in the long term. Until then we're working on try to make adding faster.

[shuoch]

I'm strangely getting the opposite issue, where setData is adding new points on top of old points instead of the desired behavior of overwriting. Any pointers?

[lokcon]

I just stumbled upon this but looks like an API token is pasted in the jsfiddle.

[luixo]

I just stumbled upon this but looks like an API token is pasted in the jsfiddle.

Thank you. The token in the fiddle is already invalidated.

[kirillegorov-dev]

I'm strangely getting the opposite issue, where setData is adding new points on top of old points instead of the desired behavior of overwriting. Any pointers?

@shuoch can you reproduce such behaviour?

I think some feature with setData for new points over old will be awesome also. (I mean this #1954 (comment)). cc @mcwhittemore