Create Sharing Link

//native

const graph = "https://graph.microsoft.com/v1.0"

export type DynSelect_site_id = string

export async function site_id(auth: RT.MsSharepoint) {

  const response = await fetch(

    `${graph}/sites?search=*&$select=id,displayName,webUrl&$top=200`,

    {

      headers: {

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

        Accept: "application/json",

      },

    }

  )

  if (!response.ok) {

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

  }

  const { value } = (await response.json()) as {

    value: { id: string; displayName: string; webUrl: string }[]

  }

  return value.map((s) => ({

    value: s.id,

    label: `${s.displayName} (${s.webUrl})`,

  }))

}

export type DynSelect_drive_id = string

export async function drive_id(auth: RT.MsSharepoint, site_id: string) {

  const response = await fetch(

    `${graph}/sites/${site_id}/drives?$select=id,name`,

    {

      headers: {

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

        Accept: "application/json",

      },

    }

  )

  if (!response.ok) {

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

  }

  const { value } = (await response.json()) as {

    value: { id: string; name: string }[]

  }

  return value.map((d) => ({ value: d.id, label: d.name }))

}

// The site's default document library, or the library given by drive_id

function driveUrl(site_id: string, drive_id: string | undefined) {

  return drive_id != null && drive_id !== ""

    ? `${graph}/drives/${encodeURIComponent(drive_id)}`

    : `${graph}/sites/${site_id}/drive`

}

// An item is addressed by its id, or by a path from the drive root starting with "/"

function ref(item: string | undefined) {

  if (item == null || item === "" || item === "/") return "root"

  if (!item.startsWith("/")) return `items/${encodeURIComponent(item)}`

  const path = item

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

    .split("/")

    .map(encodeURIComponent)

    .join("/")

  return `root:${path}:`

}

/**

 * Create Sharing Link

 * Create a sharing link for a file or folder, or return the existing one of the same type and scope. `item` is an id, or a path from the drive root starting with "/" (e.g. `/Reports/2026/summary.xlsx`). `scope` is who the link works for: `anonymous` (anyone, when the organization allows it), `organization` (signed-in members; work or school accounts only) or `users` (only the people the item is shared with); empty uses the organization's default. Requires Sites.ReadWrite.All (a connection default).

 */

export async function main(

  auth: RT.MsSharepoint,

  site_id: DynSelect_site_id,

  item: string,

  type: "view" | "edit" = "view",

  scope: "anonymous" | "organization" | "users" | undefined,

  expiration_date_time: string | undefined,

  drive_id: DynSelect_drive_id | undefined

) {

  const drive = driveUrl(site_id, drive_id)

  const body: { [key: string]: any } = { type }

  if (scope != null && (scope as string) !== "") body.scope = scope

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

    body.expirationDateTime = expiration_date_time

  }

  const response = await fetch(`${drive}/${ref(item)}/createLink`, {

    method: "POST",

    headers: {

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

      "Content-Type": "application/json",

      Accept: "application/json",

    },

    body: JSON.stringify(body),

  })

  if (!response.ok) {

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

  }

  return await response.json()

}