Download Agreement PDF

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(/\/+$/, "")

}

/**

 * Download Agreement PDF

 * Download the combined PDF (all documents merged) of an agreement to Windmill object storage and return its S3 reference.

 */

export async function main(

  auth: RT.AdobeAcrobatSign,

  agreement_id: string,

  destination: S3Object,

  attach_supporting_documents: boolean | undefined,

  audit_report: boolean | undefined

) {

  const base = await apiBase(auth)

  const url = new URL(

    `${base}/api/rest/v6/agreements/${agreement_id}/combinedDocument`

  )

  for (const [k, v] of [

    ["attachSupportingDocuments", attach_supporting_documents],

    ["auditReport", audit_report],

  ] as const) {

    if (v !== undefined) {

      url.searchParams.append(k, String(v))

    }

  }

  const response = await fetch(url, {

    method: "GET",

    headers: {

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

      Accept: "application/pdf",

    },

  })

  if (!response.ok) {

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

  }

  await wmill.writeS3File(

    destination,

    response.body as ReadableStream<Uint8Array>

  )

  return destination

}