Dominant-cause histogram across excel zero-chunk attribution events

GET

/api/canvas/excel-zero-chunks/attribution

curl --request GET \
  --url https://example.com/api/canvas/excel-zero-chunks/attribution \
  --header 'Authorization: Bearer <token>'

Return the dominant_cause histogram.

Empty warehouse → {"distribution": []}. A malformed since_iso is absorbed by the service’s _safe_query (returns an empty list) rather than erroring — diagnostic surfaces degrade, they don’t crash.

Authorizations

• HTTPBearer

Parameters

Query Parameters

since_iso

Any of:

string

string

null

null

Optional ISO-8601 UTC lower bound; omit for the full warehouse.

Responses

200

Successful Response

Media type application/json

Response Get Attribution Distribution Api Canvas Excel Zero Chunks Attribution Get

object

key

additional properties

any

Example ^generated

{}

422

Validation Error

Media type application/json

HTTPValidationError

object

detail

Detail

Array<object>

ValidationError

object

loc

required

Location

Array

msg

required

Message

string

type

required

Error Type

string

input

Input

ctx

Context

object

Example ^generated

{
  "detail": [
    {
      "loc": [
        "example"
      ],
      "msg": "example",
      "type": "example",
      "input": "example",
      "ctx": {}
    }
  ]
}