{
  "$schema": "https://json-schema.org/draft/2020-12/schema",
  "$id": "#/components/schemas/S3PresignedPost",
  "title": "S3PresignedPost",
  "type": "object",
  "properties": {
    "url": {
      "type": "string",
      "format": "uri",
      "description": "Presigned S3 POST URL"
    },
    "fields": {
      "type": "object",
      "additionalProperties": {
        "type": "string"
      },
      "description": "Form fields that must be submitted verbatim with the file upload"
    }
  },
  "required": [
    "fields",
    "url"
  ]
}