ObjectUnsubscribedError after using takeUntil











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So I have a bunch of http requests happening while I load different items to the screen. this is the basic layout



ngUnsubscribe: any = new Subject();

constructor(private service: Service){}

ngOnInit() {}

BuildView(data) {this.submitLayerservice.submitLayer(onLoadSubmitLayerFormat)
.pipe(takeUntil(this.ngUnsubscribe))
.subscribe( //logic happens here
)
}

ngOnDestroy() {
this.ngUnsubscribe.next();
this.ngUnsubscribe.unsubscribe();
}


Everything works fine and I see all of the requests get canceled when the component is destroyed. But when I go to load the project again I get this error and nothing shows up. I'm guessing it's because the ngUnsubscribe already happened? Not really sure. Most of the questions for this have to deal with Map.



EDIT:
If i dont add this.ngUnsubscribe.unsubscribe(); The problem seems to be fixed. Should I not unsubscribe from this subject?










share|improve this question
























  • When do you call BuildView?
    – Explosion Pills
    Nov 19 at 21:13










  • I call build view when a user clicks to load a project.
    – Petey
    Nov 19 at 21:18










  • Can you please provide a stackblitz so we can reproduce your error
    – Batajus
    Nov 19 at 21:36






  • 1




    You almost never want to call unsubscribe on a Subject instance: blog.angularindepth.com/rxjs-closed-subjects-1b6f76c1b63c
    – cartant
    Nov 19 at 23:24










  • maybe call this.ngUnsubscribe.next(); then this.ngUnsubscribe.complete(); before unsubscribe, according to the article
    – Fan Cheung
    Nov 20 at 5:43















up vote
0
down vote

favorite












So I have a bunch of http requests happening while I load different items to the screen. this is the basic layout



ngUnsubscribe: any = new Subject();

constructor(private service: Service){}

ngOnInit() {}

BuildView(data) {this.submitLayerservice.submitLayer(onLoadSubmitLayerFormat)
.pipe(takeUntil(this.ngUnsubscribe))
.subscribe( //logic happens here
)
}

ngOnDestroy() {
this.ngUnsubscribe.next();
this.ngUnsubscribe.unsubscribe();
}


Everything works fine and I see all of the requests get canceled when the component is destroyed. But when I go to load the project again I get this error and nothing shows up. I'm guessing it's because the ngUnsubscribe already happened? Not really sure. Most of the questions for this have to deal with Map.



EDIT:
If i dont add this.ngUnsubscribe.unsubscribe(); The problem seems to be fixed. Should I not unsubscribe from this subject?










share|improve this question
























  • When do you call BuildView?
    – Explosion Pills
    Nov 19 at 21:13










  • I call build view when a user clicks to load a project.
    – Petey
    Nov 19 at 21:18










  • Can you please provide a stackblitz so we can reproduce your error
    – Batajus
    Nov 19 at 21:36






  • 1




    You almost never want to call unsubscribe on a Subject instance: blog.angularindepth.com/rxjs-closed-subjects-1b6f76c1b63c
    – cartant
    Nov 19 at 23:24










  • maybe call this.ngUnsubscribe.next(); then this.ngUnsubscribe.complete(); before unsubscribe, according to the article
    – Fan Cheung
    Nov 20 at 5:43













up vote
0
down vote

favorite









up vote
0
down vote

favorite











So I have a bunch of http requests happening while I load different items to the screen. this is the basic layout



ngUnsubscribe: any = new Subject();

constructor(private service: Service){}

ngOnInit() {}

BuildView(data) {this.submitLayerservice.submitLayer(onLoadSubmitLayerFormat)
.pipe(takeUntil(this.ngUnsubscribe))
.subscribe( //logic happens here
)
}

ngOnDestroy() {
this.ngUnsubscribe.next();
this.ngUnsubscribe.unsubscribe();
}


Everything works fine and I see all of the requests get canceled when the component is destroyed. But when I go to load the project again I get this error and nothing shows up. I'm guessing it's because the ngUnsubscribe already happened? Not really sure. Most of the questions for this have to deal with Map.



EDIT:
If i dont add this.ngUnsubscribe.unsubscribe(); The problem seems to be fixed. Should I not unsubscribe from this subject?










share|improve this question















So I have a bunch of http requests happening while I load different items to the screen. this is the basic layout



ngUnsubscribe: any = new Subject();

constructor(private service: Service){}

ngOnInit() {}

BuildView(data) {this.submitLayerservice.submitLayer(onLoadSubmitLayerFormat)
.pipe(takeUntil(this.ngUnsubscribe))
.subscribe( //logic happens here
)
}

ngOnDestroy() {
this.ngUnsubscribe.next();
this.ngUnsubscribe.unsubscribe();
}


Everything works fine and I see all of the requests get canceled when the component is destroyed. But when I go to load the project again I get this error and nothing shows up. I'm guessing it's because the ngUnsubscribe already happened? Not really sure. Most of the questions for this have to deal with Map.



EDIT:
If i dont add this.ngUnsubscribe.unsubscribe(); The problem seems to be fixed. Should I not unsubscribe from this subject?







angular rxjs






share|improve this question















share|improve this question













share|improve this question




share|improve this question








edited Nov 19 at 21:19

























asked Nov 19 at 21:10









Petey

197




197












  • When do you call BuildView?
    – Explosion Pills
    Nov 19 at 21:13










  • I call build view when a user clicks to load a project.
    – Petey
    Nov 19 at 21:18










  • Can you please provide a stackblitz so we can reproduce your error
    – Batajus
    Nov 19 at 21:36






  • 1




    You almost never want to call unsubscribe on a Subject instance: blog.angularindepth.com/rxjs-closed-subjects-1b6f76c1b63c
    – cartant
    Nov 19 at 23:24










  • maybe call this.ngUnsubscribe.next(); then this.ngUnsubscribe.complete(); before unsubscribe, according to the article
    – Fan Cheung
    Nov 20 at 5:43


















  • When do you call BuildView?
    – Explosion Pills
    Nov 19 at 21:13










  • I call build view when a user clicks to load a project.
    – Petey
    Nov 19 at 21:18










  • Can you please provide a stackblitz so we can reproduce your error
    – Batajus
    Nov 19 at 21:36






  • 1




    You almost never want to call unsubscribe on a Subject instance: blog.angularindepth.com/rxjs-closed-subjects-1b6f76c1b63c
    – cartant
    Nov 19 at 23:24










  • maybe call this.ngUnsubscribe.next(); then this.ngUnsubscribe.complete(); before unsubscribe, according to the article
    – Fan Cheung
    Nov 20 at 5:43
















When do you call BuildView?
– Explosion Pills
Nov 19 at 21:13




When do you call BuildView?
– Explosion Pills
Nov 19 at 21:13












I call build view when a user clicks to load a project.
– Petey
Nov 19 at 21:18




I call build view when a user clicks to load a project.
– Petey
Nov 19 at 21:18












Can you please provide a stackblitz so we can reproduce your error
– Batajus
Nov 19 at 21:36




Can you please provide a stackblitz so we can reproduce your error
– Batajus
Nov 19 at 21:36




1




1




You almost never want to call unsubscribe on a Subject instance: blog.angularindepth.com/rxjs-closed-subjects-1b6f76c1b63c
– cartant
Nov 19 at 23:24




You almost never want to call unsubscribe on a Subject instance: blog.angularindepth.com/rxjs-closed-subjects-1b6f76c1b63c
– cartant
Nov 19 at 23:24












maybe call this.ngUnsubscribe.next(); then this.ngUnsubscribe.complete(); before unsubscribe, according to the article
– Fan Cheung
Nov 20 at 5:43




maybe call this.ngUnsubscribe.next(); then this.ngUnsubscribe.complete(); before unsubscribe, according to the article
– Fan Cheung
Nov 20 at 5:43

















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