Get Invoice

//native

/**

 * Get Invoice

 * Retrieve a single invoice by its Coupa internal ID.

 */

export async function main(

  auth: RT.Coupa,

  invoice_id: number,

  return_object: "limited" | "shallow" | undefined

) {

  const base = auth.instance_url.replace(/\/+$/, "")

  const url = new URL(`${base}/api/invoices/${invoice_id}`)

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

    url.searchParams.append("return_object", return_object)

  }

  const response = await fetch(url, {

    headers: {

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

      Accept: "application/json",

    },

  })

  if (!response.ok) {

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

  }

  return await response.json()

}