Description

The attachment resource represents an individual attachment associated with a feature. This resource is available only if the dynamic layer has advertised that it has attachments. A dynamic layer has attachments if it hasAttachments property is true.

The content of the attachment are streamed to the client. If the attachment is not found, and HTTP status code of 404 (Not found) is returned.

Request parameters

{
    "id": <layerOrTableId>,
    "source": <layer source>
  }

{
  "id": 101,
  "source":
  {
    "type": "mapLayer",
    "mapLayerId": 0,
    "gdbVersion": "SDE.DynamicLayers"
  }
}

Example usage

Example 1: Attachment resource for attachment ID 19 belonging to a feature (with featureId 1) in a dynamic layer (existing map service layer with id 3):

https://myserver.mydomain.com/arcgis/rest/services/Census/MapServer/dynamicLayer/1/attachments/19?layer={"id":101,"source":{"type":"mapLayer","mapLayerId":3}}&where=1=1&f=pjson