google-proto-files 
Get a copy of the googleapis proto files into your project
$ npm install --save google-proto-filesvar protoFiles = require('google-proto-files')Get a directory path by executing as a function
protoFiles('logging', 'v2')
// node_modules/google-proto-files/google/logging/v2Get a path to the entry proto file for a specific API version
protoFiles.pubsub.v1
// node_modules/google-proto-files/google/pubsub/v1/pubsub.proto