html-serializer, No serializer defined for node of type "line".

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What’s the current behavior?

Trying to build customer serializer rules for the slate-html-serializer but when I call

const html = new Html({ rules })
html.serialize(slateValue)

There is an error: “No serializer defined for node of type “line”.”

Comes from: https://github.com/ianstormtaylor/slate/blob/master/packages/slate-html-serializer/src/index.js#L364

What’s the expected behavior?

From my understanding, the default TEXT_RULE injected, should at least serialize leaf nodes as text if I have no rules defined. This would mean the nested nodes should all be dropped, which is OK, but it doesn’t even do that. It crashes.

I thought #2335 was similar, and tried to ask the question in Slack also.

More Info

I think the issue is that I call Plain.deserialize to create an initial value. Then I tried to serialize that as Html. The Plain deserializer introduces the unknown type. In my opinion this should just get ignored, but it somehow breaks the html serializer.

https://github.com/ianstormtaylor/slate/blob/a220cd5ae10c7e5f7df6d018deae0670526dbb73/packages/slate-plain-serializer/src/index.js#L17

[stevez86]

@mattmazzola I think an example is what everyone is looking for. Would definitely help with the “learning curve”

[zevero]

I lost 2 hours with slate as well … I found out, that slate-html-serializer is not like slate-plain-serializer … it has first to be instantiated with rules: Html.(rules).serialize(value); BUT I did not find any rules, that I could use with the RichTextEditor Example.

Slate may be very powerful, but in its current state it is way tooo complicated to get something done.