AngularFire2 typings: "Property 'take' does not exist on type 'FirebaseObjectObservable<any>'"

I've updated my ionic app from beta 11 to rc0. So it means I've switched from typescript 1.8 to 2.

I had this line of code working:

this.af.database.object(`comments/${commentId}`).take(1).subscribe({
    data => console.log(data)
});

But now getting this error

error TS2339: Property 'take' does not exist on type 'FirebaseObjectObservable'.

Any ideas on what's going on? How can I solve this?

Upvotes: 4

Answers (4)

Reputation: 1118

If your angular version is 6 and above.

use below:

import { take, map } from "rxjs/operators";

Install - npm install --save rxjs-compat

Also use pipe with other functions(Take, Map).

timer(0, 10) .pipe(take(1000)) .pipe(map(() => x));

Upvotes: 1

Reputation: 586

this.auth.authState.pipe(take(1)).subscribe(user=>{

});

Upvotes: 1

Reputation: 213

For more recents versions of rxjs (v6) and angularfire (v5), the syntax I used is :

import { take } from 'rxjs/operators'

...

this.afAuth.authState.pipe(take(1)).subscribe(user => {
  ...
})

Upvotes: 6

Reputation: 912

Posting user @codedesignr's answer from above so this question can have an official solution:

Import the rxjs take operator using: import 'rxjs/add/operator/take';

Upvotes: 1