Refresh image - observable Angular
I use angular 6, firebase and angularfire.
I display my image like that :
import { AngularFireStorage } from 'angularfire2/storage';
@Component({
selector: 'app-geo',
templateUrl: ' <img mat-card-image [src]="profileUrl | async" >
})
export class GeoComponent {
profileUrl: Observable<string | null>;
constructor( private storage: AngularFireStorage)
{
const ref = this.storage.ref('live/live.jpg');
this.profileUrl = ref.getDownloadURL(); }
But my image changes every 30 second but not in my app. I must reload my page to see changement.
Is it normal ?
thank you
angular firebase onchange angularfire
asked Nov 26 '18 at 15:30
al NTMal NTM
878
add a comment |
I use angular 6, firebase and angularfire.
I display my image like that :
import { AngularFireStorage } from 'angularfire2/storage';
@Component({
selector: 'app-geo',
templateUrl: ' <img mat-card-image [src]="profileUrl | async" >
})
export class GeoComponent {
profileUrl: Observable<string | null>;
constructor( private storage: AngularFireStorage)
{
const ref = this.storage.ref('live/live.jpg');
this.profileUrl = ref.getDownloadURL(); }
But my image changes every 30 second but not in my app. I must reload my page to see changement.
Is it normal ?
thank you
angular firebase onchange angularfire
asked Nov 26 '18 at 15:30
al NTMal NTM
878
add a comment |
I use angular 6, firebase and angularfire.
I display my image like that :
import { AngularFireStorage } from 'angularfire2/storage';
@Component({
selector: 'app-geo',
templateUrl: ' <img mat-card-image [src]="profileUrl | async" >
})
export class GeoComponent {
profileUrl: Observable<string | null>;
constructor( private storage: AngularFireStorage)
{
const ref = this.storage.ref('live/live.jpg');
this.profileUrl = ref.getDownloadURL(); }
But my image changes every 30 second but not in my app. I must reload my page to see changement.
Is it normal ?
thank you
angular firebase onchange angularfire
asked Nov 26 '18 at 15:30
al NTMal NTM
878
I use angular 6, firebase and angularfire.
I display my image like that :
import { AngularFireStorage } from 'angularfire2/storage';
@Component({
selector: 'app-geo',
templateUrl: ' <img mat-card-image [src]="profileUrl | async" >
})
export class GeoComponent {
profileUrl: Observable<string | null>;
constructor( private storage: AngularFireStorage)
{
const ref = this.storage.ref('live/live.jpg');
this.profileUrl = ref.getDownloadURL(); }
But my image changes every 30 second but not in my app. I must reload my page to see changement.
Is it normal ?
thank you
angular firebase onchange angularfire
angular firebase onchange angularfire
asked Nov 26 '18 at 15:30
al NTMal NTM
878
asked Nov 26 '18 at 15:30
al NTMal NTM
878
edited Nov 26 '18 at 17:38
al NTM
asked Nov 26 '18 at 15:30
al NTMal NTM
878
asked Nov 26 '18 at 15:30
al NTMal NTM
878
asked Nov 26 '18 at 15:30
al NTMal NTM
878
878
add a comment |
add a comment |
1 Answer
1
active
oldest
votes
If I understand you correctly, you're saying that the file uploaded into storage (at location this.storage.ref('live/live.jpg'); in storage) changes every 30 seconds - as in, someone else is re-uploading a different image overtop the existing file every 30 seconds? And you want that reflected on the end-user's screen? Yes - the fact that you have to reload the page to see the new image is completely normal and expected.
There's no implementation for subscribing to a file like you've described, not in Firebase anyways. If it's possible for you to accomplish what you need via image carousels, simply downloading all the images you want in one go and then cycling through them, that would definitely be easier for you to accomplish.
If you really need real-time photo changes you will have to use Firebase's real-time database or Firestore, and subscribe to a set of data - that set of data being the URLs for recently uploaded images. As part of the upload process (or as an automatically triggered cloud function) the finalized URL would be added to the queue/list of URLs. You could then use a package like AngularFire2 to help you subscribe to that queue/list of URLs.
answered Nov 26 '18 at 18:06
JeremyWJeremyW
1,824413
okay. thank you very much for the explanation. I was looking to get my url download firebase from python (script that takes the photos and sends to firebase) but without success ...
– al NTM
Nov 26 '18 at 18:11
add a comment |
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1 Answer
1
active
oldest
votes
1 Answer
1
active
oldest
votes
active
oldest
votes
active
oldest
votes
If I understand you correctly, you're saying that the file uploaded into storage (at location this.storage.ref('live/live.jpg'); in storage) changes every 30 seconds - as in, someone else is re-uploading a different image overtop the existing file every 30 seconds? And you want that reflected on the end-user's screen? Yes - the fact that you have to reload the page to see the new image is completely normal and expected.
There's no implementation for subscribing to a file like you've described, not in Firebase anyways. If it's possible for you to accomplish what you need via image carousels, simply downloading all the images you want in one go and then cycling through them, that would definitely be easier for you to accomplish.
If you really need real-time photo changes you will have to use Firebase's real-time database or Firestore, and subscribe to a set of data - that set of data being the URLs for recently uploaded images. As part of the upload process (or as an automatically triggered cloud function) the finalized URL would be added to the queue/list of URLs. You could then use a package like AngularFire2 to help you subscribe to that queue/list of URLs.
answered Nov 26 '18 at 18:06
JeremyWJeremyW
1,824413
okay. thank you very much for the explanation. I was looking to get my url download firebase from python (script that takes the photos and sends to firebase) but without success ...
– al NTM
Nov 26 '18 at 18:11
add a comment |
If I understand you correctly, you're saying that the file uploaded into storage (at location this.storage.ref('live/live.jpg'); in storage) changes every 30 seconds - as in, someone else is re-uploading a different image overtop the existing file every 30 seconds? And you want that reflected on the end-user's screen? Yes - the fact that you have to reload the page to see the new image is completely normal and expected.
There's no implementation for subscribing to a file like you've described, not in Firebase anyways. If it's possible for you to accomplish what you need via image carousels, simply downloading all the images you want in one go and then cycling through them, that would definitely be easier for you to accomplish.
If you really need real-time photo changes you will have to use Firebase's real-time database or Firestore, and subscribe to a set of data - that set of data being the URLs for recently uploaded images. As part of the upload process (or as an automatically triggered cloud function) the finalized URL would be added to the queue/list of URLs. You could then use a package like AngularFire2 to help you subscribe to that queue/list of URLs.
answered Nov 26 '18 at 18:06
JeremyWJeremyW
1,824413
okay. thank you very much for the explanation. I was looking to get my url download firebase from python (script that takes the photos and sends to firebase) but without success ...
– al NTM
Nov 26 '18 at 18:11
add a comment |
If I understand you correctly, you're saying that the file uploaded into storage (at location this.storage.ref('live/live.jpg'); in storage) changes every 30 seconds - as in, someone else is re-uploading a different image overtop the existing file every 30 seconds? And you want that reflected on the end-user's screen? Yes - the fact that you have to reload the page to see the new image is completely normal and expected.
There's no implementation for subscribing to a file like you've described, not in Firebase anyways. If it's possible for you to accomplish what you need via image carousels, simply downloading all the images you want in one go and then cycling through them, that would definitely be easier for you to accomplish.
If you really need real-time photo changes you will have to use Firebase's real-time database or Firestore, and subscribe to a set of data - that set of data being the URLs for recently uploaded images. As part of the upload process (or as an automatically triggered cloud function) the finalized URL would be added to the queue/list of URLs. You could then use a package like AngularFire2 to help you subscribe to that queue/list of URLs.
answered Nov 26 '18 at 18:06
JeremyWJeremyW
1,824413
If I understand you correctly, you're saying that the file uploaded into storage (at location this.storage.ref('live/live.jpg'); in storage) changes every 30 seconds - as in, someone else is re-uploading a different image overtop the existing file every 30 seconds? And you want that reflected on the end-user's screen? Yes - the fact that you have to reload the page to see the new image is completely normal and expected.
There's no implementation for subscribing to a file like you've described, not in Firebase anyways. If it's possible for you to accomplish what you need via image carousels, simply downloading all the images you want in one go and then cycling through them, that would definitely be easier for you to accomplish.
If you really need real-time photo changes you will have to use Firebase's real-time database or Firestore, and subscribe to a set of data - that set of data being the URLs for recently uploaded images. As part of the upload process (or as an automatically triggered cloud function) the finalized URL would be added to the queue/list of URLs. You could then use a package like AngularFire2 to help you subscribe to that queue/list of URLs.
answered Nov 26 '18 at 18:06
JeremyWJeremyW
1,824413
answered Nov 26 '18 at 18:06
JeremyWJeremyW
1,824413
answered Nov 26 '18 at 18:06
JeremyWJeremyW
1,824413
answered Nov 26 '18 at 18:06
JeremyWJeremyW
1,824413
1,824413
okay. thank you very much for the explanation. I was looking to get my url download firebase from python (script that takes the photos and sends to firebase) but without success ...
– al NTM
Nov 26 '18 at 18:11
add a comment |
okay. thank you very much for the explanation. I was looking to get my url download firebase from python (script that takes the photos and sends to firebase) but without success ...
– al NTM
Nov 26 '18 at 18:11
okay. thank you very much for the explanation. I was looking to get my url download firebase from python (script that takes the photos and sends to firebase) but without success ...
– al NTM
Nov 26 '18 at 18:11
okay. thank you very much for the explanation. I was looking to get my url download firebase from python (script that takes the photos and sends to firebase) but without success ...
– al NTM
Nov 26 '18 at 18:11
add a comment |
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