Function uploadOpenAIFile

apps/sim/providers/file-attachments.server.ts:197–229

* Uploads to `POST /v1/files` via multipart directly (not the SDK), because the installed * `openai` SDK does not type `expires_after`; the bracketed form fields are the documented * multipart encoding for the nested object and give the file an auto-expiry.

(
  file: UserFile,
  apiKey: string | undefined,
  maxBytes: number,
  signal?: AbortSignal
)

 * multipart encoding for the nested object and give the file an auto-expiry.
 */
async function uploadOpenAIFile(
  file: UserFile,
  apiKey: string | undefined,
  maxBytes: number,
  signal?: AbortSignal
): Promise<void> {
  const mimeType = inferAttachmentMimeType(file)
  const blob = await downloadFileForUpload(file, maxBytes)

  const form = new FormData()
  form.append('purpose', mimeType.startsWith('image/') ? 'vision' : 'user_data')
  form.append('expires_after[anchor]', 'created_at')
  form.append('expires_after[seconds]', String(OPENAI_FILE_EXPIRY_SECONDS))
  form.append('file', blob, file.name)

  const response = await fetch(OPENAI_FILES_ENDPOINT, {
    method: 'POST',
    headers: { Authorization: `Bearer ${apiKey}` },
    body: form,
    signal,
  })
  if (!response.ok) {
    const detail = await response.text().catch(() => '')
    throw new Error(`OpenAI file upload failed for "${file.name}" (${response.status}): ${detail}`)
  }

  const uploaded = (await response.json()) as { id?: string }
  if (!uploaded.id) {
    throw new Error(`OpenAI file upload for "${file.name}" returned no id`)
  }
  file.providerFileId = uploaded.id
  logger.info(`Uploaded "${file.name}" to OpenAI Files API`, { fileId: uploaded.id })
}

async function uploadGeminiFile(
  file: UserFile,