A Task for Windows Task Scheduler to run local-npm

local-npm-task.xml

<?xml version="1.0" encoding="UTF-16"?>
<Task version="1.2" xmlns="http://schemas.microsoft.com/windows/2004/02/mit/task">
  <RegistrationInfo>
    <Date>2016-01-21T08:54:47.1813619</Date>
    <Author>YOUR_DOMAIN\YOUR_USER</Author>
    <Description>Runs local-npm a local version of npm that grabs packages from it's server if not already fetched. This essentially allows you to run npm offline, assuming you've installed the packages you need at least once.</Description>
  </RegistrationInfo>
  <Triggers>
    <LogonTrigger>
      <Enabled>true</Enabled>
    </LogonTrigger>
  </Triggers>
  <Principals>
    <Principal id="Author">
      <UserId>YOUR_DOMAIN\YOUR_USER</UserId>
      <LogonType>InteractiveToken</LogonType>
      <RunLevel>LeastPrivilege</RunLevel>
    </Principal>
  </Principals>
  <Settings>
    <MultipleInstancesPolicy>IgnoreNew</MultipleInstancesPolicy>
    <DisallowStartIfOnBatteries>false</DisallowStartIfOnBatteries>
    <StopIfGoingOnBatteries>false</StopIfGoingOnBatteries>
    <AllowHardTerminate>true</AllowHardTerminate>
    <StartWhenAvailable>true</StartWhenAvailable>
    <RunOnlyIfNetworkAvailable>false</RunOnlyIfNetworkAvailable>
    <IdleSettings>
      <StopOnIdleEnd>true</StopOnIdleEnd>
      <RestartOnIdle>false</RestartOnIdle>
    </IdleSettings>
    <AllowStartOnDemand>true</AllowStartOnDemand>
    <Enabled>true</Enabled>
    <Hidden>false</Hidden>
    <RunOnlyIfIdle>false</RunOnlyIfIdle>
    <WakeToRun>false</WakeToRun>
    <ExecutionTimeLimit>PT0S</ExecutionTimeLimit>
    <Priority>7</Priority>
  </Settings>
  <Actions Context="Author">
    <Exec>
      <Command>powershell.exe</Command>
      <Arguments>-windowstyle hidden -command local-npm</Arguments>
    </Exec>
  </Actions>
</Task>

Here's a great article on "Offline installation of npm packages"
and with that...

Instructions:

1. install local-npm globally via npm i local-npm -g
2. set your npm registry to point to the local-npm server via npm set registry http://127.0.0.1:5080/
3. Replace YOUR_DOMAIN\YOUR_USER in this file with your real domain and user name.
4. import this scheduled task into your Task Scheduler in Windows.
5. Run the task or logout and log back in again.
6. Navigate to http://127.0.0.1:5080/_browse in a browser. If it loads you're in business.
7. Happy offline "npm"ing!