Sign Customiser

Customiser backboards

Validate a backboard shape attach

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Dry-runs the attach: the upload must exist for this store and this API key, and its purpose must be backboard_shape_svg. Nothing is written, the upload is not consumed, and no idempotency key is spent.

POST/api/v3/customisers/{customiser_id}/backboards/{backboard_id}/shape/validate-update

Overview

Requires customisers:write. The staged bytes are deliberately not read, so this cannot tell you whether the SVG is usable — that verdict only exists once the attach reads the object, and reading it here would let a preflight mark a good upload rejected. Treat a valid verdict as "the upload is attachable", not "the shape is sound".

Authorisation

Bearer token required. Include it in theAuthorization header.

Required scope: customisers:write

Path parameters

customiser_idstringpathrequired

The customiser id.

Example: 1

backboard_idstringpathrequired

The backboard id.

Example: 11

Request body

upload_idstringbody

Request body example

application/json
{
  "upload_id": "upl_9f2c4b7ad13e6058ba41cd"
}
Validate a backboard shape attach
curl https://web.signcustomiser.com/api/v3/customisers/1/backboards/11/shape/validate-update \
  --request POST \
  --header 'Accept: application/json' \
  --header 'Authorization: Bearer YOUR_API_TOKEN' \
  --header 'Content-Type: application/json' \
  --data '{
  "upload_id": "upl_9f2c4b7ad13e6058ba41cd"
}'
Response
{
  "data": {
    "object": "backboard_shape_validation",
    "operation": "update",
    "customiser_id": 42,
    "backboard_id": 11,
    "valid": true
  },
  "links": {
    "self": "https://web.signcustomiser.com/api/v3/customisers/42/backboards/11/shape/validate-update",
    "documentation": "https://www.signcustomiser.com/help/api/"
  },
  "meta": {
    "api_version": "v3",
    "request_id": "req_01jz9x2k7c8f3m5n6p7q8r9s0t"
  }
}