Gathering detailed insights and metrics for typescript-fsa-immer
Gathering detailed insights and metrics for typescript-fsa-immer
typesafe redux reducers with 'immer' immutability in the box
Installations
npm install typescript-fsa-immerDeveloper Guide
BETA
Typescript
Yes
Module System
CommonJS
Score
66.1
Supply Chain
82
Quality
74.8
Maintenance
100
Vulnerability
99.6
License
Releases
Unable to fetch releases
Languages
2
TypeScript
JavaScript
TypeScript (93.92%)
JavaScript (6.08%)
Developer
jsmircic
Download Statistics
Total Downloads
13,050
Last Day
1
Last Week
4
Last Month
14
Last Year
90
GitHub Statistics
5 Stars
5 Commits
1 Forks
1 Watchers
1 Branches
1 Contributors
Updated on Mar 30, 2025
Bundle Size
591.00 B
Minified
315.00 B
Minified + Gzipped
Maintainers
1
Package Meta Information
Latest Version
0.0.6
Package Id
typescript-fsa-immer@0.0.6
Unpacked Size
8.22 kB
Size
3.01 kB
File Count
14
Total Downloads
Cumulative downloads
Total Downloads
13,050
Last Day
-50%
1
Compared to previous day
Last Week
0%
4
Compared to previous week
Last Month
-6.7%
14
Compared to previous month
Last Year
-4.3%
90
Compared to previous year
Weekly Downloads
Monthly Downloads
Yearly Downloads
Dependencies
1
Peer Dependencies
3
typescript-fsa-immer
Redux reducer wrapped with immer produce for immutability.
Introduction
Built on top of excellent typescript-fsa, fantastic immer, and inspired by the typescript-fsa-reducers library. With a goal to provide a fluent syntax for defining redux reducers with an "in the box" immutability provided by the immer "produce" function.
The classic approach to write a reducer with immer for immutability would look something like this:
1import {produce} from 'immer' 2 3const reducer = (state,action)=>{ 4 switch(action.type){ 5 case 'INCREMENT' 6 return produce(state,draft=>draft.counter++) 7 case 'SET_VALUE' 8 return produce(state,draft=>draft.counter=action.payload) 9 } 10}
Using this library, redux reducer is defined like this:
1import { immerReducer } from "typescript-fsa-immer"; 2import { actionCreatorFactory } from "typescript-fsa"; 3 4const actionCreator = actionCreatorFactory("COUNTER"); 5 6/*action creators*/ 7const increment = actionCreator("INCREMENT"); 8const decrement = actionCreator("DECREMENT"); 9const reset = actionCreator("RESET"); 10const setCounter = actionCreator<number>("SET_VALUE"); 11 12/*case handlers, the state here can be mutated safely! */ 13const onIncrement = state => state.counter++; 14const onDecrement = state => state.counter--; 15const onReset = state => (state.counter = 0); 16 17/*the payload for this action creator is strongly typed, must be a number or TS will complain*/ 18const onSetCounter = (state, payload: number) => (state.counter = payload); 19 20/* Compose the reducer, define case handler for every action creator. 21 * Everything is strongly typed and typesafe! 22 */ 23const reducer = immerReducer(initialState) 24 .case(increment, onIncrement) 25 .case(decrement, onDecrement) 26 .case(reset, onReset) 27 .case(setCounter, onSetCounter);
Reducer case handlers are wrapped with a immer "produce". The state object passed to the case handler is an immer "draft". The original state object is never mutated.
Installation
yarn add typescript-fsa-immer immer typescript-fsa
or
npm install typescript-fsa-immer immer typescript-fsa --save
No vulnerabilities found.
Reason
no binaries found in the repo
Reason
no SAST tool detected
Details
- Warn: no pull requests merged into dev branch
Reason
0 commit(s) and 0 issue activity found in the last 90 days -- score normalized to 0
Reason
Found 0/5 approved changesets -- score normalized to 0
Reason
no effort to earn an OpenSSF best practices badge detected
Reason
license file not detected
Details
- Warn: project does not have a license file
Reason
security policy file not detected
Details
- Warn: no security policy file detected
- Warn: no security file to analyze
- Warn: no security file to analyze
- Warn: no security file to analyze
Reason
project is not fuzzed
Details
- Warn: no fuzzer integrations found
Reason
branch protection not enabled on development/release branches
Details
- Warn: branch protection not enabled for branch 'master'
Reason
48 existing vulnerabilities detected
Details
- Warn: Project is vulnerable to: GHSA-968p-4wvh-cqc8
- Warn: Project is vulnerable to: GHSA-67hx-6x53-jw92
- Warn: Project is vulnerable to: GHSA-6chw-6frg-f759
- Warn: Project is vulnerable to: GHSA-v88g-cgmw-v5xw
- Warn: Project is vulnerable to: GHSA-93q8-gq69-wqmw
- Warn: Project is vulnerable to: GHSA-fwr7-v2mv-hh25
- Warn: Project is vulnerable to: GHSA-grv7-fg5c-xmjg
- Warn: Project is vulnerable to: GHSA-w8qv-6jwh-64r5
- Warn: Project is vulnerable to: GHSA-3xgq-45jj-v275
- Warn: Project is vulnerable to: GHSA-gxpj-cx7g-858c
- Warn: Project is vulnerable to: GHSA-w573-4hg7-7wgq
- Warn: Project is vulnerable to: GHSA-q42p-pg8m-cqh6
- Warn: Project is vulnerable to: GHSA-w457-6q6x-cgp9
- Warn: Project is vulnerable to: GHSA-62gr-4qp9-h98f
- Warn: Project is vulnerable to: GHSA-f52g-6jhx-586p
- Warn: Project is vulnerable to: GHSA-2cf5-4w76-r9qv
- Warn: Project is vulnerable to: GHSA-3cqr-58rm-57f8
- Warn: Project is vulnerable to: GHSA-g9r4-xpmj-mj65
- Warn: Project is vulnerable to: GHSA-q2c6-c6pm-g3gh
- Warn: Project is vulnerable to: GHSA-765h-qjxv-5f44
- Warn: Project is vulnerable to: GHSA-f2jv-r9rf-7988
- Warn: Project is vulnerable to: GHSA-43f8-2h32-f4cj
- Warn: Project is vulnerable to: GHSA-8j8c-7jfh-h6hx
- Warn: Project is vulnerable to: GHSA-896r-f27r-55mw
- Warn: Project is vulnerable to: GHSA-9c47-m6qq-7p4h
- Warn: Project is vulnerable to: GHSA-6c8f-qphg-qjgp
- Warn: Project is vulnerable to: GHSA-jf85-cpcp-j695
- Warn: Project is vulnerable to: GHSA-p6mc-m468-83gw
- Warn: Project is vulnerable to: GHSA-29mw-wpgm-hmr9
- Warn: Project is vulnerable to: GHSA-35jh-r3h4-6jhm
- Warn: Project is vulnerable to: GHSA-952p-6rrq-rcjv
- Warn: Project is vulnerable to: GHSA-f8q6-p94x-37v3
- Warn: Project is vulnerable to: GHSA-vh95-rmgr-6w4m
- Warn: Project is vulnerable to: GHSA-xvch-5gv4-984h
- Warn: Project is vulnerable to: GHSA-fhjf-83wg-r2j9
- Warn: Project is vulnerable to: GHSA-5fw9-fq32-wv5p
- Warn: Project is vulnerable to: GHSA-hj48-42vr-x3v9
- Warn: Project is vulnerable to: GHSA-hrpp-h998-j3pp
- Warn: Project is vulnerable to: GHSA-p8p7-x288-28g6
- Warn: Project is vulnerable to: GHSA-c2qf-rxjj-qqgw
- Warn: Project is vulnerable to: GHSA-4g88-fppr-53pp
- Warn: Project is vulnerable to: GHSA-4jqc-8m5r-9rpr
- Warn: Project is vulnerable to: GHSA-jgrx-mgxx-jf9v
- Warn: Project is vulnerable to: GHSA-72xf-g2v4-qvf3
- Warn: Project is vulnerable to: GHSA-6fc8-4gx4-v693
- Warn: Project is vulnerable to: GHSA-3h5v-q93c-6h6q
- Warn: Project is vulnerable to: GHSA-c4w7-xm78-47vh
- Warn: Project is vulnerable to: GHSA-p9pc-299p-vxgp
Score
1.3
/10
Last Scanned on 2025-05-05
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