Get a response

A survey response in the detailed view, as returned by GET /api/v3/responses/{responseId} and by the write endpoints. Everything in ResponseListItem, plus the identity and provenance fields the list view omits.

It also carries data — the answers as stored, returned unchanged, so a client can read a response, edit an answer and send it straight back. Embedded Data is not echoed in stored form: the read's embeddedData[] and a request's embeddedData map already address the same fields by the same names, so a second raw map would only republish the storage layout. That is the property v1/v2 had for free by being symmetric, and the one OpenAPI 3.1.1 argues for directly: its "Validating readOnly and writeOnly" section notes that making clients strip fields before a write is "burdensome for clients, particularly when the JSON data is complex or deeply nested".

They are not the same view, and the differences are deliberate. A write accepts ingested and computed fields only: a reserved entry describes the submission environment, and being able to read one back is not a licence to author it. An unset field is omitted from the read while null on a write clears one, because a merge-shaped map has no other way to spell deletion. And a name the read returns twice under different kinds cannot be written at all — see ResponseEmbeddedDataInput, which refuses an ambiguous name rather than guessing.

Values themselves round-trip: within those two kinds every value the read emits is accepted verbatim on a write, and a date reads and writes as the same ISO-8601 string. So a read-edit-write cycle loses nothing except in two cases, both confined to rows v1 or v2 wrote. The first is the finite set of legacy surveys carrying one name as both a variable and a hidden field, where the write refuses the name outright. The second is a data map holding more keys than ResponseDataMapInput accepts: the stored map is unbounded and the write bound is not, so such a response cannot be patched here — and trimming it to fit is not a workaround, since data is replaced wholesale and an omitted key is a deletion.

Note which fields carry readOnly here and which do not, because it is the opposite of what an "echo" framing would suggest. readOnly means a value is managed exclusively by the server, so it marks the derived views — answers[], embeddedData[], unresolved[], resolution, the denormalized surveyName and workspaceId, the timestamps, durationSeconds and id. data is not read-only: it is exactly what the write endpoints accept, and leaving it unmarked is what makes this representation round-trippable rather than merely informative.

To correct one answer, read this resource, take data, change the entry you want and PATCH { "data": … }. Send only the fields you are changing — PATCH rejects unknown and non-patchable keys, so passing the whole representation back verbatim is not the intended flow; passing data back is.

Never exposed on this resource, in either view: the respondent's IP address, and the contactAttributes snapshot that v1/v2 return. That snapshot is copied from the contact at submission time and never updated after, so it is stale PII by construction — contact covers the legitimate need to know who answered.