Angular2 - Resolve on component selector

Question

Is there any way to resolve (pre-fetch) data before rendering an component selector?

I would like to pre fetch data before rendering the root component.

YourGoodFriend · Accepted Answer · 2017-03-01 14:32:39Z

1

You can use resolve in your router to prefetch data before going to loading a component with the router

path: myPath,
component: components.myComponent,
resolve: {
    data: resolvers.service
}

https://blog.thoughtram.io/angular/2016/10/10/resolving-route-data-in-angular-2.html

answered Mar 1, 2017 at 14:32

YourGoodFriend

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2 Comments

sjallamander Over a year ago

That's not what I want. I know about resolve on routes, but I would like to resolve on a component which is not linked to a route, but a selector.

YourGoodFriend Over a year ago

In that case ngOnInit like al37350 said it's what you want.

al37350 · Accepted Answer · 2017-03-01 13:06:24Z

0

I think you must implements ngOnInit of OnInit interface to resolve data before rendering. In the Lifecycle hooks of angular, NGOnInit: Initialize the directive/component after Angular first displays the data-bound properties and sets the directive/component's input properties. Called once, after the first ngOnChanges.

answered Mar 1, 2017 at 13:06

al37350

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1 Comment

sjallamander Over a year ago

It's not what I want but it will have to suffice. Rendering of page will not hold until completion of ngOnInit.

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