npm package discovery and stats viewer.

Discover Tips

  • General search

    [free text search, go nuts!]

  • Package details

    pkg:[package-name]

  • User packages

    @[username]

Sponsor

Optimize Toolset

I’ve always been into building performant and accessible sites, but lately I’ve been taking it extremely seriously. So much so that I’ve been building a tool to help me optimize and monitor the sites that I build to make sure that I’m making an attempt to offer the best experience to those who visit them. If you’re into performant, accessible and SEO friendly sites, you might like it too! You can check it out at Optimize Toolset.

About

Hi, 👋, I’m Ryan Hefner  and I built this site for me, and you! The goal of this site was to provide an easy way for me to check the stats on my npm packages, both for prioritizing issues and updates, and to give me a little kick in the pants to keep up on stuff.

As I was building it, I realized that I was actually using the tool to build the tool, and figured I might as well put this out there and hopefully others will find it to be a fast and useful way to search and browse npm packages as I have.

If you’re interested in other things I’m working on, follow me on Twitter or check out the open source projects I’ve been publishing on GitHub.

I am also working on a Twitter bot for this site to tweet the most popular, newest, random packages from npm. Please follow that account now and it will start sending out packages soon–ish.

Open Software & Tools

This site wouldn’t be possible without the immense generosity and tireless efforts from the people who make contributions to the world and share their work via open source initiatives. Thank you 🙏

© 2024 – Pkg Stats / Ryan Hefner

flux-action-class

v1.2.0

Published

Boilerplate free class-based action creator. Following flux-standard-action spec. Built with TypeScript.

Downloads

168

Readme

flux-action-class Build Status

Boilerplate free class-based action creator. Following flux-standard-action spec. Built with TypeScript. Works flawlessly with JavaScript and TypeScript right out of the box.

Installation

npm i flux-action-class

Quick start

import { ActionStandard } from 'flux-action-class'

class ActionToDoIncrement extends ActionStandard {}
// Creates action with no payload, no meta and type 'flux-action-class:ActionToDoIncrement'

const reducer = (state, action) => {
  switch (action.type) {
    case ActionToDoIncrement.type:
    // Do stuff
  }
}

In depth

ActionStandard is an abstract class with two generics, payload and meta, set to undefined by default. It has:

  • Static type getter based on class' name to easily use it in your reducers
  • Own (non-static) type getter which uses the static one to comply with flux-standard-action
  • Own (non-static) payload readonly field typed as the first generic (undefined by default)
  • Own (non-static) meta readonly field typed as the second generic (undefined by default)
  • Own (non-static) error readonly boolean field set to true if payload is an instance of Error
  • Protected static prefix field which is the the first part of type set to 'flux-action-class:' by default

Examples

Create an action with no payload and no meta

import { ActionStandard } from 'flux-action-class'

class ActionTest1 extends ActionStandard {}
// Creates action with no payload, no meta, type 'flux-action-class:ActionTest1' and error = false

// TS compiler expects no arguments provided to the constructor
new ActionTest1() // Correct
new ActionTest1('test') // Failure

Create an action with payload and no meta

import { ActionStandard } from 'flux-action-class'

class ActionTest2 extends ActionStandard<number> {}
// Creates action with payload of type number, no meta, type 'flux-action-class:ActionTest2' and error = false

// TS compiler expects one argument provided to the constructor
new ActionTest2(5) // Correct
new ActionTest2() // Failure
new ActionTest2('test') // Failure
new ActionTest2(5, 'test') // Failure

Create an action with payload and meta

import { ActionStandard } from 'flux-action-class'

class ActionTest3 extends ActionStandard<number, string> {}
// Creates action with payload of type number, meta of type string, type 'flux-action-class:ActionTest3' and error = false

// TS compiler expects two arguments provided to the constructor
new ActionTest3(5, 'test') // Correct
new ActionTest3() // Failure
new ActionTest3('test') // Failure
new ActionTest3(5, 45) // Failure

Create an action with no payload and meta

import { ActionStandard } from 'flux-action-class'

class ActionTest4 extends ActionStandard<undefined, string> {}
// Creates action with no payload, meta of type string, type 'flux-action-class:ActionTest4' and error = false

// TS compiler expects two arguments provided to the constructor
new ActionTest4(undefined, 'test') // Correct
new ActionTest4() // Failure
new ActionTest4('test') // Failure
new ActionTest4(5, 45) // Failure

Create an error action with no meta

import { ActionStandard } from 'flux-action-class'

class ActionTest5 extends ActionStandard<Error> {}
// Creates action with error payload, no meta, type 'flux-action-class:ActionTest5' and error = true

// TS compiler expects one argument provided to the constructor
new ActionTest5(new Error()) // Correct
new ActionTest3() // Failure
new ActionTest3('test') // Failure
new ActionTest3(5, 45) // Failure

Create an error action with meta

import { ActionStandard } from 'flux-action-class'

class ActionTest6 extends ActionStandard<Error, string> {}
// Creates action with error payload, meta of type string, type 'flux-action-class:ActionTest6' and error = true

// TS compiler expects one argument provided to the constructor
new ActionTest6(new Error(), 'string') // Correct
new ActionTest6() // Failure
new ActionTest6('test') // Failure
new ActionTest6(5, 45) // Failure

Customize action prefix

Sub-classing

import { ActionStandard } from 'flux-action-class'

abstract class AppBaseAction<Payload = undefined, Meta = undefined> extends ActionStandard<Payload, Meta> {
  protected static readonly prefix = 'app:'
}

class ActionTest7 extends AppBaseAction {}
// Creates action with no payload, no meta, type 'app:ActionTest7' and error = false

Using setPrefix

import { ActionStandard, setPrefix } from 'flux-action-class'

// Add it only once and it changes default prefix for all actions
setPrefix('app:')

class ActionTest7 extends ActionStandard {}
// Creates action with no payload, no meta, type 'app:ActionTest7' and error = false

Usage in reducers

Be aware, if you're using switch-case based reducers, TS compiler is no longer capable of automatic union discrimination, in other words the compiler can no longer match action's type by its field type.

Consider going with selecting a reducer from a map by key (relevant article (go to Tip 3: Switch away from switch), Redux's official documentation) or using ngrx-actions instead.

You can take a look at the discussion here