POST
/v1/boards/{id}/rows/{rowId}/filesAttach a file to a board record
Declares a file against one record on a custom board and answers the row plus a signed upload url; the bytes go straight to storage in a second request and never through this service. WRITE access, not read — pinning a file changes the record. The pack-page twin is post_definitions_key_rows_rowId_files.
Access class: board:write.
Send request
Use the documented inputs to call this endpoint directly.
API serverbase URL
Bearer tokensessionoptional
Stored only in this browser for the session security scheme and reused on every API page in this group.
Parameters
Values are applied to the request and the example on the right.
idpath · stringrequired
rowIdpath · stringrequired
Request body
application/jsonrequiredbodyoptional
paramsoptional
queryobjectoptional
Responses
201application/json
the action's answer
{}defaultapplication/json
a refusal: {"error": "<what a person needs to read>"}. 401 no credential, 402 the plan does not include this, 403 the seat does not, 404 the thing does not exist or is not yours to see.
{
"error": "string"
}errorstringrequired