Bootstrap

You can use Bootstraps to update users’ Launchers. It is recommended to use this class to check for updates and update the Launcher at the start of the application.

import { Bootstraps } from 'eml-lib'

bootstraps()

async function bootstraps() {
  const bootstraps = new Bootstraps('https://at.emlproject.pages.dev')

  try {
    const update = await bootstraps.checkForUpdate()

    if (update.updateAvailable) {
      bootstraps.on('download_end', (data) => {
        update.runUpdate()
      })
      await bootstraps.download()
    }
  } catch (err) {
    console.error(err)
  }
}

Bootstraps constructor

Parameter	Type	Description	Required?
url	string	The URL of your EML AdminTool website.	Yes

Bootstraps.checkForUpdate() method

Check for updates.

Returns: Promise<IBootstraps> The bootstraps files information and version if an update is available.

Throws: FETCH_ERROR - If the request to the EML AdminTool website fails.

Bootstraps.download() method

Download the update found by Bootstraps.checkForUpdate().

Returns: Promise<string> - The path to the downloaded update.

Throws: DOWNLOAD_ERROR - If an error occurs while downloading the update.

Emits: download_progress - The update is downloading. • download_error - Error while downloading the update. • download_end - The update is downloaded.

Bootstraps.runUpdate() method

Quit the application and install the update.

Parameter	Type	Description	Required?
silent	boolean	(Windows-only) Runs the installer in silent mode.	No (default is false)

Throws: bootstraps_error - If the update execution fails.