List Event Instances

//native

/**

 * List Event Instances

 * List the occurrences of a recurring event (its series master id) between two ISO 8601 date-times. Each occurrence has its own id: pass it to Update Event or Delete Event to change or cancel that single occurrence. Requires Calendars.Read (covered by the default Calendars.ReadWrite).

 */

export async function main(

  auth: RT.Outlook,

  event_id: string,

  start_date_time: string,

  end_date_time: string,

  top: number = 25,

  next_link: string | undefined,

  time_zone: string = "UTC"

) {

  if (

    next_link != null &&

    next_link !== "" &&

    !next_link.startsWith("https://graph.microsoft.com/")

  ) {

    throw new Error(

      "next_link must be an @odata.nextLink returned by Microsoft Graph"

    )

  }

  let url: URL

  if (next_link != null && next_link !== "") {

    url = new URL(next_link)

  } else {

    url = new URL(

      `https://graph.microsoft.com/v1.0/me/events/${encodeURIComponent(

        event_id

      )}/instances`

    )

    url.searchParams.append("startDateTime", start_date_time)

    url.searchParams.append("endDateTime", end_date_time)

    url.searchParams.append("$top", String(top))

  }

  const response = await fetch(url, {

    headers: {

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

      Accept: "application/json",

      Prefer: `outlook.timezone="${time_zone}"`,

    },

  })

  if (!response.ok) {

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

  }

  return await response.json()

}