enviro

env

Env is a Node and client-side ~60 LOC library to manage what environment your code is running in, and let you override the environment for parts of the system.

Usage

On Node

Env = require('enviro')

Env.get('api') # Will return local, development, or production
Env.getInternal('api') # Will return local, qa, or prod

# Gets it's env from env vars, first would look to API_ENV, then NODE_ENV

On The Frontend

Enviro.get('usage_tracking')

# Set with window.USAGE_TRACKING_ENV or localStorage.USAGE_TRACKING_ENV

Functions

get(serviceName, [default]) - returns 'development' or 'production' to let you know which servers serviceName should be talking to

getShort(serviceName, [default]) - returns 'local', 'qa' or 'prod', otherwise the same as get

deployed(serviceName) - Returns boolean based on whether serviceName should be considered actually deployed

Deployed

By convention, the environments defined by specific names refer to which server you should be communicating with, not which environment this process is actually in. The special deployed env can be used to get the actual environment the process is running in.

Enviro also provides the deployed function which will return true if the service is deployed.

Manipulating Things

You can override what apis your software talks to, and whether it thinks it's deployed.

• The env var / localstorage key API_ENV will, for example, change what is returned by Env.get('api')
• The env var / localstorage key GAMERA_DEPLOYED will, for example, change what is returned by Env.deployed('gamera')
• A request for Env.get('api.gamera') will first look to GAMERA_ENV, then API_ENV