Helium

In-memory key-value store

import Registry from "@dashkite/helium"

do ->

  Registry.set "foo", "bar"
  assert.equal "bar", await Registry.get "foo"
  
  # conditional set
  assert.equal "bar", Registry.setc "foo", "baz"

API

get

get key ⇢ value

Get a value from the registry.

Given a key, returns a promise that will resolve to the corresponding value, if and when it is set.

set

set key, value → value

Set a value in the registry.

Given a key and a value, sets the value corresponding to the key, returning the value and resolving any promises awaiting on it.

getc

getc key → value

Conditionally get a value from the registry.

Given a key, returns the corresponding value if one exists or undefined.

setc

setc key, value → value

Conditionally set a value in the registry.

Given a key and a value:

• Behaves like set when no value corresponding to the key exists
• Returns the value corresponding to the key when it exists