Feature: Stream data into | npm cache add

[ORESoftware]

I'm opening this issue because:

• npm is crashing.
• npm is producing an incorrect install.
• npm is doing something I don't understand.
• npm is producing incorrect or undesirable behavior.
• Other (see below for feature requests):

What's going wrong?

this is a feature request for all new npm versions.

Right now, npm cache add <file.tgz> works, given a file that's already on the local filesystem.

I am looking for a version of npm cache add that can receive data from stdin, something like this:

nc localhost 5000 | npm cache add

if this already exists forgive me.

[ORESoftware]

pretty certain it doesn't exist - npm cache add does not seem to read from stdin.