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create-from-source.ts

The browser’s copy of creating a document from an extracted source: scaffold from the blueprint, apply the mappings, create the document, save it.

Why it exists

Section titled “Why it exists”

“Create from Source” has two entry points — the collection toolbar button and the tree’s actions menu — and each carried its own copy of this logic. They had already drifted: one passed the document type name to the modal and the other did not, so the Destination tab showed an empty box depending on which route you took.

One copy, two callers.

What it exports

Section titled “What it exports”
createDocumentFromSource(request): Promise<CreateFromSourceResult>
applyMappings(values, options): void
buildSectionLookups(sections): SectionLookups

No browser APIs

Section titled “No browser APIs”

Nothing here touches window, document, Umbraco contexts or repositories. fetch and the auth token are passed in.

That was deliberate, and it is what let the same logic be ported to C# with confidence — the browser-specific parts were already separated out, so what remained was the actual work.

What stays with each caller

Section titled “What stays with each caller”

The UI: discovering allowed child types, opening the pickers, notifications, navigating to the new document. Only the work is shared.

Section titled “Related”