Mixing
Rx sequence of actions with Redux Observable
These epics are triggered by the user typing into a field.
The SET_TODO triggers a message saying that the user is typing.
Then if the typing stops for one second the message is that the user is not typing and then two seconds later the message is an empty string.
A couple of questions,
One: Is there a way to do this with one self contained epic?
Two: I used dummy actions (ones that are not in the Redux reducer), is this a bad hack?
cheers
import { concatMap, debounce, delay, mapTo } from 'rxjs/operators'
import { combineEpics, ofType } from 'redux-observable'
import { of, timer } from 'rxjs'
const enteringTextEpic = action$ =>
action$.pipe(
ofType('SET_TODO'),
delay(200),
concatMap(action =>
of(
{ type: 'SET_MESSAGE', text: 'You are entering text' },
{ type: 'NOT' }
)
)
)
const notEnteringTextEpic = action$ =>
action$.pipe(
ofType('NOT'),
debounce(() => timer(1000)),
concatMap(action =>
of(
{ type: 'SET_MESSAGE', text: 'Now you are not entering text' },
{ type: 'FINISHED' }
)
)
)
/**The actions NOT and FINISHED are dummy actions and are not in the reducer */
const finishedEnteringTextEpic = action$ =>
action$.pipe(
ofType('FINISHED'),
debounce(() => timer(2000)),
mapTo({ type: 'SET_MESSAGE', text: '' })
)
const epica = combineEpics(
enteringTextEpic,
finishedEnteringTextEpic,
notEnteringTextEpic
)
export default epica
rxjs6 redux-observable
asked Jan 2 at 2:55
Garrick NorthoverGarrick Northover
62
add a comment |
These epics are triggered by the user typing into a field.
The SET_TODO triggers a message saying that the user is typing.
Then if the typing stops for one second the message is that the user is not typing and then two seconds later the message is an empty string.
A couple of questions,
One: Is there a way to do this with one self contained epic?
Two: I used dummy actions (ones that are not in the Redux reducer), is this a bad hack?
cheers
import { concatMap, debounce, delay, mapTo } from 'rxjs/operators'
import { combineEpics, ofType } from 'redux-observable'
import { of, timer } from 'rxjs'
const enteringTextEpic = action$ =>
action$.pipe(
ofType('SET_TODO'),
delay(200),
concatMap(action =>
of(
{ type: 'SET_MESSAGE', text: 'You are entering text' },
{ type: 'NOT' }
)
)
)
const notEnteringTextEpic = action$ =>
action$.pipe(
ofType('NOT'),
debounce(() => timer(1000)),
concatMap(action =>
of(
{ type: 'SET_MESSAGE', text: 'Now you are not entering text' },
{ type: 'FINISHED' }
)
)
)
/**The actions NOT and FINISHED are dummy actions and are not in the reducer */
const finishedEnteringTextEpic = action$ =>
action$.pipe(
ofType('FINISHED'),
debounce(() => timer(2000)),
mapTo({ type: 'SET_MESSAGE', text: '' })
)
const epica = combineEpics(
enteringTextEpic,
finishedEnteringTextEpic,
notEnteringTextEpic
)
export default epica
rxjs6 redux-observable
asked Jan 2 at 2:55
Garrick NorthoverGarrick Northover
62
add a comment |
These epics are triggered by the user typing into a field.
The SET_TODO triggers a message saying that the user is typing.
Then if the typing stops for one second the message is that the user is not typing and then two seconds later the message is an empty string.
A couple of questions,
One: Is there a way to do this with one self contained epic?
Two: I used dummy actions (ones that are not in the Redux reducer), is this a bad hack?
cheers
import { concatMap, debounce, delay, mapTo } from 'rxjs/operators'
import { combineEpics, ofType } from 'redux-observable'
import { of, timer } from 'rxjs'
const enteringTextEpic = action$ =>
action$.pipe(
ofType('SET_TODO'),
delay(200),
concatMap(action =>
of(
{ type: 'SET_MESSAGE', text: 'You are entering text' },
{ type: 'NOT' }
)
)
)
const notEnteringTextEpic = action$ =>
action$.pipe(
ofType('NOT'),
debounce(() => timer(1000)),
concatMap(action =>
of(
{ type: 'SET_MESSAGE', text: 'Now you are not entering text' },
{ type: 'FINISHED' }
)
)
)
/**The actions NOT and FINISHED are dummy actions and are not in the reducer */
const finishedEnteringTextEpic = action$ =>
action$.pipe(
ofType('FINISHED'),
debounce(() => timer(2000)),
mapTo({ type: 'SET_MESSAGE', text: '' })
)
const epica = combineEpics(
enteringTextEpic,
finishedEnteringTextEpic,
notEnteringTextEpic
)
export default epica
rxjs6 redux-observable
asked Jan 2 at 2:55
Garrick NorthoverGarrick Northover
62
These epics are triggered by the user typing into a field.
The SET_TODO triggers a message saying that the user is typing.
Then if the typing stops for one second the message is that the user is not typing and then two seconds later the message is an empty string.
A couple of questions,
One: Is there a way to do this with one self contained epic?
Two: I used dummy actions (ones that are not in the Redux reducer), is this a bad hack?
cheers
import { concatMap, debounce, delay, mapTo } from 'rxjs/operators'
import { combineEpics, ofType } from 'redux-observable'
import { of, timer } from 'rxjs'
const enteringTextEpic = action$ =>
action$.pipe(
ofType('SET_TODO'),
delay(200),
concatMap(action =>
of(
{ type: 'SET_MESSAGE', text: 'You are entering text' },
{ type: 'NOT' }
)
)
)
const notEnteringTextEpic = action$ =>
action$.pipe(
ofType('NOT'),
debounce(() => timer(1000)),
concatMap(action =>
of(
{ type: 'SET_MESSAGE', text: 'Now you are not entering text' },
{ type: 'FINISHED' }
)
)
)
/**The actions NOT and FINISHED are dummy actions and are not in the reducer */
const finishedEnteringTextEpic = action$ =>
action$.pipe(
ofType('FINISHED'),
debounce(() => timer(2000)),
mapTo({ type: 'SET_MESSAGE', text: '' })
)
const epica = combineEpics(
enteringTextEpic,
finishedEnteringTextEpic,
notEnteringTextEpic
)
export default epica
rxjs6 redux-observable
rxjs6 redux-observable
asked Jan 2 at 2:55
Garrick NorthoverGarrick Northover
62
asked Jan 2 at 2:55
Garrick NorthoverGarrick Northover
62
asked Jan 2 at 2:55
Garrick NorthoverGarrick Northover
62
asked Jan 2 at 2:55
Garrick NorthoverGarrick Northover
62
asked Jan 2 at 2:55
Garrick NorthoverGarrick Northover
62
62
add a comment |
add a comment |
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