How to send multiple HTTP requests in NGRX Effects properly?
0
I've written the Effect below for a single HTTP request:
(payload of getRequestObj is an object)
@Effect()
indexDoc$ = this.actions$.pipe(
ofType<IndexDocuments>(myActionTypes2.IndexDoc),
mergeMapTo(this.store.select(getRequestObj).pipe(
take(1)
)),
mergeMap((request: any) => this.myService.indexDoc(request).pipe(
map((response: any) => new IndexSuccess(response)),
catchError(error => of(new IndexFail(error)))
))
);
What I want is, feeding the Effect with an array, and send an HTTP request for each item in the array. What I tried:
(payload of getRequestArray is an array of objects)
@Effect()
indexDocs$ = this.actions$.pipe(
ofType<indexDocs>(myActionTypes1.IndexDocs),
concatMapTo(this.store.select(getRequestsArray)),
concatMap((request: any) => {
return zip(...request.map(item => {
return this.myService.indexDocs(item).pipe(
map(response => {
return this.store.dispatch(new IndexSuccess(response))
}),
catchError(error => {
return Observable.of(this.store.dispatch(new IndexFail(error)));
})
)
}))
})
What happens is, all of the requests return 412 Precondition Failed error. How do I make it work properly?
javascript rxjs ngrx ngrx-effects
asked Nov 12 at 11:33
Ahmet Ömer
6616
add a comment |
0
I've written the Effect below for a single HTTP request:
(payload of getRequestObj is an object)
@Effect()
indexDoc$ = this.actions$.pipe(
ofType<IndexDocuments>(myActionTypes2.IndexDoc),
mergeMapTo(this.store.select(getRequestObj).pipe(
take(1)
)),
mergeMap((request: any) => this.myService.indexDoc(request).pipe(
map((response: any) => new IndexSuccess(response)),
catchError(error => of(new IndexFail(error)))
))
);
What I want is, feeding the Effect with an array, and send an HTTP request for each item in the array. What I tried:
(payload of getRequestArray is an array of objects)
@Effect()
indexDocs$ = this.actions$.pipe(
ofType<indexDocs>(myActionTypes1.IndexDocs),
concatMapTo(this.store.select(getRequestsArray)),
concatMap((request: any) => {
return zip(...request.map(item => {
return this.myService.indexDocs(item).pipe(
map(response => {
return this.store.dispatch(new IndexSuccess(response))
}),
catchError(error => {
return Observable.of(this.store.dispatch(new IndexFail(error)));
})
)
}))
})
What happens is, all of the requests return 412 Precondition Failed error. How do I make it work properly?
javascript rxjs ngrx ngrx-effects
asked Nov 12 at 11:33
Ahmet Ömer
6616
If it makes the requests but server returns412then the problem is probably somewhere else and not in the RxJS chain. Check request headers.
– martin
Nov 12 at 11:52
It seems that the request headers somehow get changed when multiple requests are sent from a single Effect. @martin
– Ahmet Ömer
Nov 12 at 12:57
add a comment |
0
0
0
I've written the Effect below for a single HTTP request:
(payload of getRequestObj is an object)
@Effect()
indexDoc$ = this.actions$.pipe(
ofType<IndexDocuments>(myActionTypes2.IndexDoc),
mergeMapTo(this.store.select(getRequestObj).pipe(
take(1)
)),
mergeMap((request: any) => this.myService.indexDoc(request).pipe(
map((response: any) => new IndexSuccess(response)),
catchError(error => of(new IndexFail(error)))
))
);
What I want is, feeding the Effect with an array, and send an HTTP request for each item in the array. What I tried:
(payload of getRequestArray is an array of objects)
@Effect()
indexDocs$ = this.actions$.pipe(
ofType<indexDocs>(myActionTypes1.IndexDocs),
concatMapTo(this.store.select(getRequestsArray)),
concatMap((request: any) => {
return zip(...request.map(item => {
return this.myService.indexDocs(item).pipe(
map(response => {
return this.store.dispatch(new IndexSuccess(response))
}),
catchError(error => {
return Observable.of(this.store.dispatch(new IndexFail(error)));
})
)
}))
})
What happens is, all of the requests return 412 Precondition Failed error. How do I make it work properly?
javascript rxjs ngrx ngrx-effects
asked Nov 12 at 11:33
Ahmet Ömer
6616
I've written the Effect below for a single HTTP request:
(payload of getRequestObj is an object)
@Effect()
indexDoc$ = this.actions$.pipe(
ofType<IndexDocuments>(myActionTypes2.IndexDoc),
mergeMapTo(this.store.select(getRequestObj).pipe(
take(1)
)),
mergeMap((request: any) => this.myService.indexDoc(request).pipe(
map((response: any) => new IndexSuccess(response)),
catchError(error => of(new IndexFail(error)))
))
);
What I want is, feeding the Effect with an array, and send an HTTP request for each item in the array. What I tried:
(payload of getRequestArray is an array of objects)
@Effect()
indexDocs$ = this.actions$.pipe(
ofType<indexDocs>(myActionTypes1.IndexDocs),
concatMapTo(this.store.select(getRequestsArray)),
concatMap((request: any) => {
return zip(...request.map(item => {
return this.myService.indexDocs(item).pipe(
map(response => {
return this.store.dispatch(new IndexSuccess(response))
}),
catchError(error => {
return Observable.of(this.store.dispatch(new IndexFail(error)));
})
)
}))
})
What happens is, all of the requests return 412 Precondition Failed error. How do I make it work properly?
javascript rxjs ngrx ngrx-effects
javascript rxjs ngrx ngrx-effects
asked Nov 12 at 11:33
Ahmet Ömer
6616
asked Nov 12 at 11:33
Ahmet Ömer
6616
asked Nov 12 at 11:33
Ahmet Ömer
6616
asked Nov 12 at 11:33
Ahmet Ömer
6616
asked Nov 12 at 11:33
Ahmet Ömer
6616
6616
If it makes the requests but server returns412then the problem is probably somewhere else and not in the RxJS chain. Check request headers.
– martin
Nov 12 at 11:52
It seems that the request headers somehow get changed when multiple requests are sent from a single Effect. @martin
– Ahmet Ömer
Nov 12 at 12:57
add a comment |
If it makes the requests but server returns412then the problem is probably somewhere else and not in the RxJS chain. Check request headers.
– martin
Nov 12 at 11:52
It seems that the request headers somehow get changed when multiple requests are sent from a single Effect. @martin
– Ahmet Ömer
Nov 12 at 12:57
If it makes the requests but server returns
412 then the problem is probably somewhere else and not in the RxJS chain. Check request headers.– martin
Nov 12 at 11:52
If it makes the requests but server returns
412 then the problem is probably somewhere else and not in the RxJS chain. Check request headers.– martin
Nov 12 at 11:52
It seems that the request headers somehow get changed when multiple requests are sent from a single Effect. @martin
– Ahmet Ömer
Nov 12 at 12:57
It seems that the request headers somehow get changed when multiple requests are sent from a single Effect. @martin
– Ahmet Ömer
Nov 12 at 12:57
add a comment |
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If it makes the requests but server returns
412then the problem is probably somewhere else and not in the RxJS chain. Check request headers.– martin
Nov 12 at 11:52
It seems that the request headers somehow get changed when multiple requests are sent from a single Effect. @martin
– Ahmet Ömer
Nov 12 at 12:57