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Why is switchMap/CatchError needed here? #19

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wlans opened this issue Mar 16, 2018 · 0 comments
Open

Why is switchMap/CatchError needed here? #19

wlans opened this issue Mar 16, 2018 · 0 comments

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@wlans
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wlans commented Mar 16, 2018

https://github.com/UltimateAngular/ngrx-store-effects-app/blob/8e859d1838d89fe833138e0a5a89ae0b0eebad3f/src/products/guards/toppings.guard.ts#L17

On lines 17 and 18 you do a switchMap and catchError. I have been trying to understand why for a while now. This checkStore function is subscribed to the store not the outbound HTTP call so in what case would it throw an error?
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