Upload Transient Document

import * as wmill from "windmill-client"

import { S3Object } from "windmill-client"

async function apiBase(auth: RT.AdobeAcrobatSign): Promise<string> {

  if (auth.base_uri) return auth.base_uri.replace(/\/+$/, "")

  const r = await fetch("https://api.adobesign.com/api/rest/v6/baseUris", {

    headers: {

      Authorization: `Bearer ${auth.token}`,

      Accept: "application/json",

    },

  })

  if (!r.ok) throw new Error(`${r.status} ${await r.text()}`)

  const { apiAccessPoint } = (await r.json()) as { apiAccessPoint: string }

  return apiAccessPoint.replace(/\/+$/, "")

}

/**

 * Upload Transient Document

 * Upload a file from Windmill object storage as a transient document. Returns a transientDocumentId to reference in Create Agreement (valid ~7 days, single use).

 */

export async function main(

  auth: RT.AdobeAcrobatSign,

  file: S3Object,

  file_name: string,

  mime_type: string | undefined

) {

  const bytes = await wmill.loadS3File(file)

  if (!bytes) {

    throw new Error("Could not load the file from object storage")

  }

  const form = new FormData()

  form.append("File-Name", file_name)

  if (mime_type !== undefined && mime_type !== "") {

    form.append("Mime-Type", mime_type)

  }

  form.append("File", new Blob([bytes]), file_name)

  const base = await apiBase(auth)

  const response = await fetch(`${base}/api/rest/v6/transientDocuments`, {

    method: "POST",

    headers: {

      Authorization: `Bearer ${auth.token}`,

      Accept: "application/json",

    },

    body: form,

  })

  if (!response.ok) {

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

  }

  return await response.json()

}