Observable with an http.get inside
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1
I'm starting with angular.
I'm trying to create an Observable to load and put in cache data.
I whant to subscribe this observable from the HomeComponent off my app, and when the observable ping it because it's finish, I will appear buttons
But, I have a problem
I have a http.get to get the data from function : charger_data()
Then if I succeed to have the data, I will transform it and put it in cache
I whant my main function : charger_data_et_cache() return an observable
I don't manage to do that, could you help me please !!! ?
Thanks
public charger_data_et_cache(force:boolean) : Observable<boolean>{
this.charger_data().subscribe(
(value) => {
console.log('Observable change ! => ' + value);
charger_cache(value);
},
(error)=> {
console.log('Observable error!');
},
() => {
console.log('Observable complete!');
}
)
return Observable.create( observer => {
});
}
public charger_data():Observable<string>{
return this.http.get('/assets/txt/mystere.txt',{responseType: 'text'}).pipe(
map(data => {
return data;
}),catchError( error => {
return throwError( 'error : ' + error )
})
);
}
public charger_cache(data:string){
//do stuff
}javascript
angular observable asked Nov 16 '18 at 14:32
frixofrixo
212
|
show 1 more comment
1
I'm starting with angular.
I'm trying to create an Observable to load and put in cache data.
I whant to subscribe this observable from the HomeComponent off my app, and when the observable ping it because it's finish, I will appear buttons
But, I have a problem
I have a http.get to get the data from function : charger_data()
Then if I succeed to have the data, I will transform it and put it in cache
I whant my main function : charger_data_et_cache() return an observable
I don't manage to do that, could you help me please !!! ?
Thanks
public charger_data_et_cache(force:boolean) : Observable<boolean>{
this.charger_data().subscribe(
(value) => {
console.log('Observable change ! => ' + value);
charger_cache(value);
},
(error)=> {
console.log('Observable error!');
},
() => {
console.log('Observable complete!');
}
)
return Observable.create( observer => {
});
}
public charger_data():Observable<string>{
return this.http.get('/assets/txt/mystere.txt',{responseType: 'text'}).pipe(
map(data => {
return data;
}),catchError( error => {
return throwError( 'error : ' + error )
})
);
}
public charger_cache(data:string){
//do stuff
}javascript
angular observable asked Nov 16 '18 at 14:32
frixofrixo
212
when you want to return observable ?
– Artyom Amiryan
Nov 16 '18 at 15:19
and what angular version are you using ?
– Artyom Amiryan
Nov 16 '18 at 15:20
I'm using angular 7
– frixo
Nov 17 '18 at 20:47
Yes I whant to return an observable
– frixo
Nov 17 '18 at 20:47
I could subscribe the observable from the homeComponent
– frixo
Nov 17 '18 at 20:48
|
show 1 more comment
1
1
1
I'm starting with angular.
I'm trying to create an Observable to load and put in cache data.
I whant to subscribe this observable from the HomeComponent off my app, and when the observable ping it because it's finish, I will appear buttons
But, I have a problem
I have a http.get to get the data from function : charger_data()
Then if I succeed to have the data, I will transform it and put it in cache
I whant my main function : charger_data_et_cache() return an observable
I don't manage to do that, could you help me please !!! ?
Thanks
public charger_data_et_cache(force:boolean) : Observable<boolean>{
this.charger_data().subscribe(
(value) => {
console.log('Observable change ! => ' + value);
charger_cache(value);
},
(error)=> {
console.log('Observable error!');
},
() => {
console.log('Observable complete!');
}
)
return Observable.create( observer => {
});
}
public charger_data():Observable<string>{
return this.http.get('/assets/txt/mystere.txt',{responseType: 'text'}).pipe(
map(data => {
return data;
}),catchError( error => {
return throwError( 'error : ' + error )
})
);
}
public charger_cache(data:string){
//do stuff
}javascript
angular observable asked Nov 16 '18 at 14:32
frixofrixo
212
I'm starting with angular.
I'm trying to create an Observable to load and put in cache data.
I whant to subscribe this observable from the HomeComponent off my app, and when the observable ping it because it's finish, I will appear buttons
But, I have a problem
I have a http.get to get the data from function : charger_data()
Then if I succeed to have the data, I will transform it and put it in cache
I whant my main function : charger_data_et_cache() return an observable
I don't manage to do that, could you help me please !!! ?
Thanks
public charger_data_et_cache(force:boolean) : Observable<boolean>{
this.charger_data().subscribe(
(value) => {
console.log('Observable change ! => ' + value);
charger_cache(value);
},
(error)=> {
console.log('Observable error!');
},
() => {
console.log('Observable complete!');
}
)
return Observable.create( observer => {
});
}
public charger_data():Observable<string>{
return this.http.get('/assets/txt/mystere.txt',{responseType: 'text'}).pipe(
map(data => {
return data;
}),catchError( error => {
return throwError( 'error : ' + error )
})
);
}
public charger_cache(data:string){
//do stuff
} public charger_data_et_cache(force:boolean) : Observable<boolean>{
this.charger_data().subscribe(
(value) => {
console.log('Observable change ! => ' + value);
charger_cache(value);
},
(error)=> {
console.log('Observable error!');
},
() => {
console.log('Observable complete!');
}
)
return Observable.create( observer => {
});
}
public charger_data():Observable<string>{
return this.http.get('/assets/txt/mystere.txt',{responseType: 'text'}).pipe(
map(data => {
return data;
}),catchError( error => {
return throwError( 'error : ' + error )
})
);
}
public charger_cache(data:string){
//do stuff
} public charger_data_et_cache(force:boolean) : Observable<boolean>{
this.charger_data().subscribe(
(value) => {
console.log('Observable change ! => ' + value);
charger_cache(value);
},
(error)=> {
console.log('Observable error!');
},
() => {
console.log('Observable complete!');
}
)
return Observable.create( observer => {
});
}
public charger_data():Observable<string>{
return this.http.get('/assets/txt/mystere.txt',{responseType: 'text'}).pipe(
map(data => {
return data;
}),catchError( error => {
return throwError( 'error : ' + error )
})
);
}
public charger_cache(data:string){
//do stuff
}javascript
angular observable javascript
angular observable asked Nov 16 '18 at 14:32
frixofrixo
212
asked Nov 16 '18 at 14:32
frixofrixo
212
asked Nov 16 '18 at 14:32
frixofrixo
212
asked Nov 16 '18 at 14:32
frixofrixo
212
asked Nov 16 '18 at 14:32
frixofrixo
212
212
when you want to return observable ?
– Artyom Amiryan
Nov 16 '18 at 15:19
and what angular version are you using ?
– Artyom Amiryan
Nov 16 '18 at 15:20
I'm using angular 7
– frixo
Nov 17 '18 at 20:47
Yes I whant to return an observable
– frixo
Nov 17 '18 at 20:47
I could subscribe the observable from the homeComponent
– frixo
Nov 17 '18 at 20:48
|
show 1 more comment
when you want to return observable ?
– Artyom Amiryan
Nov 16 '18 at 15:19
and what angular version are you using ?
– Artyom Amiryan
Nov 16 '18 at 15:20
I'm using angular 7
– frixo
Nov 17 '18 at 20:47
Yes I whant to return an observable
– frixo
Nov 17 '18 at 20:47
I could subscribe the observable from the homeComponent
– frixo
Nov 17 '18 at 20:48
when you want to return observable ?
– Artyom Amiryan
Nov 16 '18 at 15:19
when you want to return observable ?
– Artyom Amiryan
Nov 16 '18 at 15:19
and what angular version are you using ?
– Artyom Amiryan
Nov 16 '18 at 15:20
and what angular version are you using ?
– Artyom Amiryan
Nov 16 '18 at 15:20
I'm using angular 7
– frixo
Nov 17 '18 at 20:47
I'm using angular 7
– frixo
Nov 17 '18 at 20:47
Yes I whant to return an observable
– frixo
Nov 17 '18 at 20:47
Yes I whant to return an observable
– frixo
Nov 17 '18 at 20:47
I could subscribe the observable from the homeComponent
– frixo
Nov 17 '18 at 20:48
I could subscribe the observable from the homeComponent
– frixo
Nov 17 '18 at 20:48
|
show 1 more comment
1 Answer
1
active
oldest
votes
0
I have found !
public charger_data_et_cache(force:boolean) : Observable<boolean>{
if(force == false && MystereService.mystere_charge){
return Observable.create((observer) => observer.complete());
}
return this.charger_data(force).pipe(map(data => {
this.charger_cache(data);
console.log('charger_cache ok');
return true;
}),catchError( error => {
return throwError( 'error' )
}));
}
answered Nov 22 '18 at 9:57
frixofrixo
212
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
0
I have found !
public charger_data_et_cache(force:boolean) : Observable<boolean>{
if(force == false && MystereService.mystere_charge){
return Observable.create((observer) => observer.complete());
}
return this.charger_data(force).pipe(map(data => {
this.charger_cache(data);
console.log('charger_cache ok');
return true;
}),catchError( error => {
return throwError( 'error' )
}));
}
answered Nov 22 '18 at 9:57
frixofrixo
212
add a comment |
0
I have found !
public charger_data_et_cache(force:boolean) : Observable<boolean>{
if(force == false && MystereService.mystere_charge){
return Observable.create((observer) => observer.complete());
}
return this.charger_data(force).pipe(map(data => {
this.charger_cache(data);
console.log('charger_cache ok');
return true;
}),catchError( error => {
return throwError( 'error' )
}));
}
answered Nov 22 '18 at 9:57
frixofrixo
212
add a comment |
0
0
0
I have found !
public charger_data_et_cache(force:boolean) : Observable<boolean>{
if(force == false && MystereService.mystere_charge){
return Observable.create((observer) => observer.complete());
}
return this.charger_data(force).pipe(map(data => {
this.charger_cache(data);
console.log('charger_cache ok');
return true;
}),catchError( error => {
return throwError( 'error' )
}));
}
answered Nov 22 '18 at 9:57
frixofrixo
212
I have found !
public charger_data_et_cache(force:boolean) : Observable<boolean>{
if(force == false && MystereService.mystere_charge){
return Observable.create((observer) => observer.complete());
}
return this.charger_data(force).pipe(map(data => {
this.charger_cache(data);
console.log('charger_cache ok');
return true;
}),catchError( error => {
return throwError( 'error' )
}));
}
answered Nov 22 '18 at 9:57
frixofrixo
212
answered Nov 22 '18 at 9:57
frixofrixo
212
answered Nov 22 '18 at 9:57
frixofrixo
212
answered Nov 22 '18 at 9:57
frixofrixo
212
212
add a comment |
add a comment |
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when you want to return observable ?
– Artyom Amiryan
Nov 16 '18 at 15:19
and what angular version are you using ?
– Artyom Amiryan
Nov 16 '18 at 15:20
I'm using angular 7
– frixo
Nov 17 '18 at 20:47
Yes I whant to return an observable
– frixo
Nov 17 '18 at 20:47
I could subscribe the observable from the homeComponent
– frixo
Nov 17 '18 at 20:48