Driftwatch

Plaid / Plaid API (2020-09-14) /

Breakingdirection flip: their tools call this safe

Response field is_investments_fallback_item is no longer guaranteed

What changed

Producer-side tools call this non-breaking. For a consumer it is a null dereference on an unknown future date.

Affects is_investments_fallback_item on ProcessorInvestmentsHoldingsGetResponse reachable from 1 operation. Nothing fails at the call; it fails wherever the value is finally used, which is usually somewhere else entirely.

no longer guaranteed present

Who is affected

Code that reads Plaid's ProcessorInvestmentsHoldingsGetResponse objects, used by 1 Plaid operation.

Before and after

WhereBeforeAfter
ProcessorInvestmentsHoldingsGetResponse.is_investments_fallback_itemalways presentmay be missing

Code that breaks

// response.is_investments_fallback_item may now be absent or null
const is_investments_fallback_item = response.is_investments_fallback_item ?? fallback;

Based on Plaid’s published API specification. How severity is decided.