How do I make a savable preview like Youtube Gutenberg block?

The goodness of Open Source Softwares is that you can always look into the source code. You can find the source code of embed block of Gutenberg from here https://github.com/WordPress/gutenberg/tree/master/packages/block-library/src/embed. It will be complex as it’s a combination of multiple embeds so be careful by studying it.

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