migration from angular 5 to angular 7










3















Yesterday i have migrated my application from Angular 5 to angular 7. In that process i have changed EventSource to EventSourcePolyfill as suggested while running the application. But since then i am facing a strange issue. This is what i am getting the issue in console as follows:



ERROR TypeError: Cannot read property 'heartbeatTimeout' of undefined
at new EventSourcePolyfill (eventsource.js:155)
at AppFooterComponent.push../src/app/layout/footer/footer.component.ts.AppFooterComponent.connect (footer.component.ts:133)
at SafeSubscriber._next (footer.component.ts:52)
at SafeSubscriber.push../node_modules/rxjs/_esm5/internal/Subscriber.js.SafeSubscriber.__tryOrUnsub (Subscriber.js:196)
at SafeSubscriber.push../node_modules/rxjs/_esm5/internal/Subscriber.js.SafeSubscriber.next (Subscriber.js:134)
at Subscriber.push../node_modules/rxjs/_esm5/internal/Subscriber.js.Subscriber._next (Subscriber.js:77)
at Subscriber.push../node_modules/rxjs/_esm5/internal/Subscriber.js.Subscriber.next (Subscriber.js:54)
at AsyncAction.dispatch (timer.js:31)
at AsyncAction.push../node_modules/rxjs/_esm5/internal/scheduler/AsyncAction.js.AsyncAction._execute (AsyncAction.js:63)
at AsyncAction.push../node_modules/rxjs/_esm5/internal/scheduler/AsyncAction.js.AsyncAction.execute (AsyncAction.js:51)


This is what i did in my code:



import EventSourcePolyfill from 'ng-event-source';

let source = new EventSourcePolyfill('/api/v1/events/register');


Can any one suggest me how to get rid of this issue.



Thanks.










share|improve this question
























  • The origin of the error is in footer.component.ts(line 133), kindly check it there. heartbeatTimeout might not be in the properties of the object you are trying to read.

    – inthevortex
    Nov 15 '18 at 5:30












  • When i comment it out then it works properly. I mean the EventSourcePolyfill is commented the it works fine. Its not the issue with the footer.component.ts. The code in footer.component.ts of EventSourcePoyfill breaks. Please suggest.

    – youi
    Nov 15 '18 at 5:38











  • Have you used ng update command for migration? It has ability to refactor some breaking changes? Have you followed instructions on update.angular.io? There are some steps with RxJS migration.

    – Walter Łuszczyk
    Nov 22 '18 at 6:59
















3















Yesterday i have migrated my application from Angular 5 to angular 7. In that process i have changed EventSource to EventSourcePolyfill as suggested while running the application. But since then i am facing a strange issue. This is what i am getting the issue in console as follows:



ERROR TypeError: Cannot read property 'heartbeatTimeout' of undefined
at new EventSourcePolyfill (eventsource.js:155)
at AppFooterComponent.push../src/app/layout/footer/footer.component.ts.AppFooterComponent.connect (footer.component.ts:133)
at SafeSubscriber._next (footer.component.ts:52)
at SafeSubscriber.push../node_modules/rxjs/_esm5/internal/Subscriber.js.SafeSubscriber.__tryOrUnsub (Subscriber.js:196)
at SafeSubscriber.push../node_modules/rxjs/_esm5/internal/Subscriber.js.SafeSubscriber.next (Subscriber.js:134)
at Subscriber.push../node_modules/rxjs/_esm5/internal/Subscriber.js.Subscriber._next (Subscriber.js:77)
at Subscriber.push../node_modules/rxjs/_esm5/internal/Subscriber.js.Subscriber.next (Subscriber.js:54)
at AsyncAction.dispatch (timer.js:31)
at AsyncAction.push../node_modules/rxjs/_esm5/internal/scheduler/AsyncAction.js.AsyncAction._execute (AsyncAction.js:63)
at AsyncAction.push../node_modules/rxjs/_esm5/internal/scheduler/AsyncAction.js.AsyncAction.execute (AsyncAction.js:51)


This is what i did in my code:



import EventSourcePolyfill from 'ng-event-source';

let source = new EventSourcePolyfill('/api/v1/events/register');


Can any one suggest me how to get rid of this issue.



Thanks.










share|improve this question
























  • The origin of the error is in footer.component.ts(line 133), kindly check it there. heartbeatTimeout might not be in the properties of the object you are trying to read.

    – inthevortex
    Nov 15 '18 at 5:30












  • When i comment it out then it works properly. I mean the EventSourcePolyfill is commented the it works fine. Its not the issue with the footer.component.ts. The code in footer.component.ts of EventSourcePoyfill breaks. Please suggest.

    – youi
    Nov 15 '18 at 5:38











  • Have you used ng update command for migration? It has ability to refactor some breaking changes? Have you followed instructions on update.angular.io? There are some steps with RxJS migration.

    – Walter Łuszczyk
    Nov 22 '18 at 6:59














3












3








3








Yesterday i have migrated my application from Angular 5 to angular 7. In that process i have changed EventSource to EventSourcePolyfill as suggested while running the application. But since then i am facing a strange issue. This is what i am getting the issue in console as follows:



ERROR TypeError: Cannot read property 'heartbeatTimeout' of undefined
at new EventSourcePolyfill (eventsource.js:155)
at AppFooterComponent.push../src/app/layout/footer/footer.component.ts.AppFooterComponent.connect (footer.component.ts:133)
at SafeSubscriber._next (footer.component.ts:52)
at SafeSubscriber.push../node_modules/rxjs/_esm5/internal/Subscriber.js.SafeSubscriber.__tryOrUnsub (Subscriber.js:196)
at SafeSubscriber.push../node_modules/rxjs/_esm5/internal/Subscriber.js.SafeSubscriber.next (Subscriber.js:134)
at Subscriber.push../node_modules/rxjs/_esm5/internal/Subscriber.js.Subscriber._next (Subscriber.js:77)
at Subscriber.push../node_modules/rxjs/_esm5/internal/Subscriber.js.Subscriber.next (Subscriber.js:54)
at AsyncAction.dispatch (timer.js:31)
at AsyncAction.push../node_modules/rxjs/_esm5/internal/scheduler/AsyncAction.js.AsyncAction._execute (AsyncAction.js:63)
at AsyncAction.push../node_modules/rxjs/_esm5/internal/scheduler/AsyncAction.js.AsyncAction.execute (AsyncAction.js:51)


This is what i did in my code:



import EventSourcePolyfill from 'ng-event-source';

let source = new EventSourcePolyfill('/api/v1/events/register');


Can any one suggest me how to get rid of this issue.



Thanks.










share|improve this question
















Yesterday i have migrated my application from Angular 5 to angular 7. In that process i have changed EventSource to EventSourcePolyfill as suggested while running the application. But since then i am facing a strange issue. This is what i am getting the issue in console as follows:



ERROR TypeError: Cannot read property 'heartbeatTimeout' of undefined
at new EventSourcePolyfill (eventsource.js:155)
at AppFooterComponent.push../src/app/layout/footer/footer.component.ts.AppFooterComponent.connect (footer.component.ts:133)
at SafeSubscriber._next (footer.component.ts:52)
at SafeSubscriber.push../node_modules/rxjs/_esm5/internal/Subscriber.js.SafeSubscriber.__tryOrUnsub (Subscriber.js:196)
at SafeSubscriber.push../node_modules/rxjs/_esm5/internal/Subscriber.js.SafeSubscriber.next (Subscriber.js:134)
at Subscriber.push../node_modules/rxjs/_esm5/internal/Subscriber.js.Subscriber._next (Subscriber.js:77)
at Subscriber.push../node_modules/rxjs/_esm5/internal/Subscriber.js.Subscriber.next (Subscriber.js:54)
at AsyncAction.dispatch (timer.js:31)
at AsyncAction.push../node_modules/rxjs/_esm5/internal/scheduler/AsyncAction.js.AsyncAction._execute (AsyncAction.js:63)
at AsyncAction.push../node_modules/rxjs/_esm5/internal/scheduler/AsyncAction.js.AsyncAction.execute (AsyncAction.js:51)


This is what i did in my code:



import EventSourcePolyfill from 'ng-event-source';

let source = new EventSourcePolyfill('/api/v1/events/register');


Can any one suggest me how to get rid of this issue.



Thanks.







node.js angular typescript migration eventsource






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share|improve this question













share|improve this question




share|improve this question








edited Nov 22 '18 at 6:24









Goncalo Peres

1,4771720




1,4771720










asked Nov 15 '18 at 4:48









youiyoui

344315




344315












  • The origin of the error is in footer.component.ts(line 133), kindly check it there. heartbeatTimeout might not be in the properties of the object you are trying to read.

    – inthevortex
    Nov 15 '18 at 5:30












  • When i comment it out then it works properly. I mean the EventSourcePolyfill is commented the it works fine. Its not the issue with the footer.component.ts. The code in footer.component.ts of EventSourcePoyfill breaks. Please suggest.

    – youi
    Nov 15 '18 at 5:38











  • Have you used ng update command for migration? It has ability to refactor some breaking changes? Have you followed instructions on update.angular.io? There are some steps with RxJS migration.

    – Walter Łuszczyk
    Nov 22 '18 at 6:59


















  • The origin of the error is in footer.component.ts(line 133), kindly check it there. heartbeatTimeout might not be in the properties of the object you are trying to read.

    – inthevortex
    Nov 15 '18 at 5:30












  • When i comment it out then it works properly. I mean the EventSourcePolyfill is commented the it works fine. Its not the issue with the footer.component.ts. The code in footer.component.ts of EventSourcePoyfill breaks. Please suggest.

    – youi
    Nov 15 '18 at 5:38











  • Have you used ng update command for migration? It has ability to refactor some breaking changes? Have you followed instructions on update.angular.io? There are some steps with RxJS migration.

    – Walter Łuszczyk
    Nov 22 '18 at 6:59

















The origin of the error is in footer.component.ts(line 133), kindly check it there. heartbeatTimeout might not be in the properties of the object you are trying to read.

– inthevortex
Nov 15 '18 at 5:30






The origin of the error is in footer.component.ts(line 133), kindly check it there. heartbeatTimeout might not be in the properties of the object you are trying to read.

– inthevortex
Nov 15 '18 at 5:30














When i comment it out then it works properly. I mean the EventSourcePolyfill is commented the it works fine. Its not the issue with the footer.component.ts. The code in footer.component.ts of EventSourcePoyfill breaks. Please suggest.

– youi
Nov 15 '18 at 5:38





When i comment it out then it works properly. I mean the EventSourcePolyfill is commented the it works fine. Its not the issue with the footer.component.ts. The code in footer.component.ts of EventSourcePoyfill breaks. Please suggest.

– youi
Nov 15 '18 at 5:38













Have you used ng update command for migration? It has ability to refactor some breaking changes? Have you followed instructions on update.angular.io? There are some steps with RxJS migration.

– Walter Łuszczyk
Nov 22 '18 at 6:59






Have you used ng update command for migration? It has ability to refactor some breaking changes? Have you followed instructions on update.angular.io? There are some steps with RxJS migration.

– Walter Łuszczyk
Nov 22 '18 at 6:59













1 Answer
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oldest

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You have to pass additional parameters, as



eventSource = new EventSourcePolyfill(url,
heartbeatTimeout: 5000, connectionTimeout: 5000, headers: 'Authorization': 'Basic foo' );





share|improve this answer























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    1 Answer
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    1 Answer
    1






    active

    oldest

    votes









    active

    oldest

    votes






    active

    oldest

    votes









    1














    You have to pass additional parameters, as



    eventSource = new EventSourcePolyfill(url,
    heartbeatTimeout: 5000, connectionTimeout: 5000, headers: 'Authorization': 'Basic foo' );





    share|improve this answer



























      1














      You have to pass additional parameters, as



      eventSource = new EventSourcePolyfill(url,
      heartbeatTimeout: 5000, connectionTimeout: 5000, headers: 'Authorization': 'Basic foo' );





      share|improve this answer

























        1












        1








        1







        You have to pass additional parameters, as



        eventSource = new EventSourcePolyfill(url,
        heartbeatTimeout: 5000, connectionTimeout: 5000, headers: 'Authorization': 'Basic foo' );





        share|improve this answer













        You have to pass additional parameters, as



        eventSource = new EventSourcePolyfill(url,
        heartbeatTimeout: 5000, connectionTimeout: 5000, headers: 'Authorization': 'Basic foo' );






        share|improve this answer












        share|improve this answer



        share|improve this answer










        answered Nov 24 '18 at 21:32









        jayjay

        1555




        1555





























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