Download Attachment

import * as wmill from "windmill-client"

import { S3Object } from "windmill-client"

function authHeader(auth: RT.Servicenow) {

  return auth.token

    ? `Bearer ${auth.token}`

    : `Basic ${btoa(`${auth.username}:${auth.password}`)}`

}

/**

 * Download Attachment

 * Download an attachment's binary content by its sys_id and write it to Windmill object storage, returning the S3 file reference.

 */

export async function main(

  auth: RT.Servicenow,

  attachment_sys_id: string,

  output_s3_path: string

) {

  const response = await fetch(

    `${auth.instance_url}/api/now/attachment/${attachment_sys_id}/file`,

    {

      method: "GET",

      headers: {

        Authorization: authHeader(auth),

      },

    }

  )

  if (!response.ok) {

    throw new Error(`${response.status} ${await response.text()}`)

  }

  const output: S3Object = { s3: output_s3_path }

  await wmill.writeS3File(output, await response.blob())

  return output

}