Function openDMChannel

apps/sim/app/api/tools/slack/utils.ts:206–232

(
  accessToken: string,
  userId: string,
  requestId: string,
  logger: Logger
)

 * Opens a DM channel with a user and returns the channel ID
 */
export async function openDMChannel(
  accessToken: string,
  userId: string,
  requestId: string,
  logger: Logger
): Promise<string> {
  const response = await fetch('https://slack.com/api/conversations.open', {
    method: 'POST',
    headers: {
      'Content-Type': 'application/json',
      Authorization: `Bearer ${accessToken}`,
    },
    body: JSON.stringify({
      users: userId,
    }),
  })

  const data = await response.json()

  if (!data.ok) {
    logger.error(`[${requestId}] Failed to open DM channel:`, data.error)
    throw new Error(data.error || 'Failed to open DM channel with user')
  }

  logger.info(`[${requestId}] Opened DM channel: ${data.channel.id}`)
  return data.channel.id
}

export interface SlackMessageParams {
  accessToken: string