Function resolveSiteId

apps/sim/connectors/sharepoint/sharepoint.ts:72–124

* Resolves a SharePoint site URL like "contoso.sharepoint.com/sites/mysite" * into a Microsoft Graph siteId.

(
  accessToken: string,
  siteUrl: string,
  retryOptions?: Parameters<typeof fetchWithRetry>[2]
)

 * into a Microsoft Graph siteId.
 */
async function resolveSiteId(
  accessToken: string,
  siteUrl: string,
  retryOptions?: Parameters<typeof fetchWithRetry>[2]
): Promise<{ id: string; displayName: string }> {
  // Normalise: strip protocol, trailing slashes
  const cleaned = siteUrl.replace(/^https?:\/\//, '').replace(/\/+$/, '')

  // Split into hostname and server-relative path
  const firstSlash = cleaned.indexOf('/')
  let hostname: string
  let serverRelativePath: string

  if (firstSlash === -1) {
    hostname = cleaned
    serverRelativePath = ''
  } else {
    hostname = cleaned.slice(0, firstSlash)
    serverRelativePath = cleaned.slice(firstSlash)
  }

  // Graph endpoint: GET /sites/{hostname}:/{path}
  const url = serverRelativePath
    ? `${GRAPH_BASE}/sites/${hostname}:${serverRelativePath}`
    : `${GRAPH_BASE}/sites/${hostname}`

  const response = await fetchWithRetry(
    url,
    {
      method: 'GET',
      headers: {
        Authorization: `Bearer ${accessToken}`,
        Accept: 'application/json',
      },
    },
    retryOptions
  )

  if (!response.ok) {
    const errorText = await response.text()
    throw new Error(
      `Failed to resolve SharePoint site "${siteUrl}": ${response.status} – ${errorText}`
    )
  }

  const site = (await response.json()) as { id: string; displayName?: string }
  logger.info('Resolved SharePoint site', {
    siteUrl,
    siteId: site.id,
    displayName: site.displayName,
  })
  return { id: site.id, displayName: site.displayName ?? '' }
}

/**
 * Downloads the text content of a drive item.