TypeError: Cannot read properties of undefined (reading 'length')

Developing with Prismic
1

We always get this error, when we run below,

PrismicDOM.RichText.asHtml([{
    type: 'paragraph',
    content: {
      text: "Sample para text",
      spans: [],
    },
  }]),

For,

"prismic-dom": "^2.2.7"

3

Hi @aniruddha.shevle ,

I'm not sure what you're trying to do here. Are you trying to pass raw JSON like this to the dom package? Why not API IDs?

Thanks.

4

@Phil : I'm actually trying to migrate Prismic content to another platform and for that after exporting the Prismic document, I need its respective HTML format to migrate the documents.

Can you suggest me a better way for this?

5

The only way to get the respective HTML would be to scrap the final output on your website page. You could use a scraper for this task. Alternatively, you could use a script that processes the JSON and feeds it through the dom like above, but it can't be raw JSON; it has to be an API ID.

6

@Phil : Don't we have any automated way to resolve this? Many documents need to be migrated.

7

No unfortunately not. But you can output it as HTML like so:

9

@Phil : I'm exactly doing as above example and gives me the mentioned error.
Also, what do you mean by below?

but it can't be raw JSON; it has to be an API ID

10

The API ID is the reference to the field in the JSON rather than the JSON itself, like when you hit the API endpoint.