an unnest needs a `path` (the dotted array f...

Warnings reference › data-router:unnest-no-path

Identifier

data-router:unnest-no-path

Raised by

Data Router

Since

1.84.0

What happened

An unnest spec was declared without a path - the dotted array field to expand. Without it there is nothing to read, so the spec is dropped and the source's rows pass through as plain fan-in rather than the router throwing.

The fix

Set path to the array field on the parent row, e.g. 'addresses' or 'profile.addresses'.

The smallest fix

addSource('company', { unnest: [{ path: 'addresses', as: 'address' }] })

Reference

Covered in full at the API reference.