@brocan/env
v1.2.2
Published
A simple wrapper around node-config which provides a way to ensure the presence of required properties.
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[DEPRECATED] env
Instead of using env, the usage of convict is recommended!
A simple wrapper around node-config
which provides a way to ensure the presence of required properties.
Usage
// will throw if PORT is not set
const env = require('@brocan/env').ensure([
'PORT'
]);
const [ port, host ] = env.getAll([ 'PORT', 'HOST' ]);
// will return localhost if HOST is unset
const host = env.getOrDefault('HOST', 'localhost');
API
ensure(properties: Array<string>): env
Checks if the specified properties are set. Throws if any of the required properties is missing. The thrown Error
object has a missing
field with the array of the missing properties.
Returns the env instance if all properties are set.
get(property: string): string
Provides the same functionality as config.get()
.
getAll(...properties: string): Array<string>
Returns property values for multiple properties.
getOrDefault(property: string, value: any): any
If the specified property is set, then returns its value, otherwise returns the value passed as the second parameter.
getOrProvide(property: string, provider: (string) => any): any
If the specified property is set, then returns its value, otherwise calls the provider function with the property and returns the result.
has(property: string): boolean
Provides the same functionality as config.has()
.