Unable to make a sequential service (HTTP) calls in Angular 5 by using Joins
-1
I had a Array with N number of objects. I want to make a service call sequentially. One response comes based on that i will make a another request. Please provide a better approach to handle this scenario through JOINS in Angular 5.
angular5
asked Nov 13 '18 at 4:59
siva.kumarsiva.kumar
94
add a comment |
-1
I had a Array with N number of objects. I want to make a service call sequentially. One response comes based on that i will make a another request. Please provide a better approach to handle this scenario through JOINS in Angular 5.
angular5
asked Nov 13 '18 at 4:59
siva.kumarsiva.kumar
94
add a comment |
-1
-1
-1
I had a Array with N number of objects. I want to make a service call sequentially. One response comes based on that i will make a another request. Please provide a better approach to handle this scenario through JOINS in Angular 5.
angular5
asked Nov 13 '18 at 4:59
siva.kumarsiva.kumar
94
I had a Array with N number of objects. I want to make a service call sequentially. One response comes based on that i will make a another request. Please provide a better approach to handle this scenario through JOINS in Angular 5.
angular5
angular5
asked Nov 13 '18 at 4:59
siva.kumarsiva.kumar
94
asked Nov 13 '18 at 4:59
siva.kumarsiva.kumar
94
asked Nov 13 '18 at 4:59
siva.kumarsiva.kumar
94
asked Nov 13 '18 at 4:59
siva.kumarsiva.kumar
94
asked Nov 13 '18 at 4:59
siva.kumarsiva.kumar
94
94
add a comment |
add a comment |
1 Answer
1
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oldest
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0
You can use switchMap for this.
nestedCalls(user: any)
return this.http.get('YOUR_URL').pipe(
switchMap(data =>
const body =
// do your work woth data - first service object
;
return this.http.post('YOUR_URL', body);
)
)
Or you can do something like below also :
this.service.getData(id, (response) =>
this.service.getInitiatedEntity(response.id).subscribe(
(retData) =>
// response - 1st service data
// retData - 2nd service data
);
);
Hope this help.
answered Nov 13 '18 at 5:37
Vishw PatelVishw Patel
36119
nestedCalls(user: any) return this.http.get('YOUR_URL').pipe( switchMap(data => const body = // do your work woth data - first service object ; return this.http.post('YOUR_URL', body); ) ) This is for two service which you written. let suppose i had n number of objects in my array. i want to make a service call one after another sequentially. Once one response then only i will make another api call. Could please let me know i have any ideas regarding this.
– siva.kumar
Nov 14 '18 at 6:13
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
You can use switchMap for this.
nestedCalls(user: any)
return this.http.get('YOUR_URL').pipe(
switchMap(data =>
const body =
// do your work woth data - first service object
;
return this.http.post('YOUR_URL', body);
)
)
Or you can do something like below also :
this.service.getData(id, (response) =>
this.service.getInitiatedEntity(response.id).subscribe(
(retData) =>
// response - 1st service data
// retData - 2nd service data
);
);
Hope this help.
answered Nov 13 '18 at 5:37
Vishw PatelVishw Patel
36119
nestedCalls(user: any) return this.http.get('YOUR_URL').pipe( switchMap(data => const body = // do your work woth data - first service object ; return this.http.post('YOUR_URL', body); ) ) This is for two service which you written. let suppose i had n number of objects in my array. i want to make a service call one after another sequentially. Once one response then only i will make another api call. Could please let me know i have any ideas regarding this.
– siva.kumar
Nov 14 '18 at 6:13
add a comment |
0
You can use switchMap for this.
nestedCalls(user: any)
return this.http.get('YOUR_URL').pipe(
switchMap(data =>
const body =
// do your work woth data - first service object
;
return this.http.post('YOUR_URL', body);
)
)
Or you can do something like below also :
this.service.getData(id, (response) =>
this.service.getInitiatedEntity(response.id).subscribe(
(retData) =>
// response - 1st service data
// retData - 2nd service data
);
);
Hope this help.
answered Nov 13 '18 at 5:37
Vishw PatelVishw Patel
36119
nestedCalls(user: any) return this.http.get('YOUR_URL').pipe( switchMap(data => const body = // do your work woth data - first service object ; return this.http.post('YOUR_URL', body); ) ) This is for two service which you written. let suppose i had n number of objects in my array. i want to make a service call one after another sequentially. Once one response then only i will make another api call. Could please let me know i have any ideas regarding this.
– siva.kumar
Nov 14 '18 at 6:13
add a comment |
0
0
0
You can use switchMap for this.
nestedCalls(user: any)
return this.http.get('YOUR_URL').pipe(
switchMap(data =>
const body =
// do your work woth data - first service object
;
return this.http.post('YOUR_URL', body);
)
)
Or you can do something like below also :
this.service.getData(id, (response) =>
this.service.getInitiatedEntity(response.id).subscribe(
(retData) =>
// response - 1st service data
// retData - 2nd service data
);
);
Hope this help.
answered Nov 13 '18 at 5:37
Vishw PatelVishw Patel
36119
You can use switchMap for this.
nestedCalls(user: any)
return this.http.get('YOUR_URL').pipe(
switchMap(data =>
const body =
// do your work woth data - first service object
;
return this.http.post('YOUR_URL', body);
)
)
Or you can do something like below also :
this.service.getData(id, (response) =>
this.service.getInitiatedEntity(response.id).subscribe(
(retData) =>
// response - 1st service data
// retData - 2nd service data
);
);
Hope this help.
answered Nov 13 '18 at 5:37
Vishw PatelVishw Patel
36119
answered Nov 13 '18 at 5:37
Vishw PatelVishw Patel
36119
answered Nov 13 '18 at 5:37
Vishw PatelVishw Patel
36119
answered Nov 13 '18 at 5:37
Vishw PatelVishw Patel
36119
36119
nestedCalls(user: any) return this.http.get('YOUR_URL').pipe( switchMap(data => const body = // do your work woth data - first service object ; return this.http.post('YOUR_URL', body); ) ) This is for two service which you written. let suppose i had n number of objects in my array. i want to make a service call one after another sequentially. Once one response then only i will make another api call. Could please let me know i have any ideas regarding this.
– siva.kumar
Nov 14 '18 at 6:13
add a comment |
nestedCalls(user: any) return this.http.get('YOUR_URL').pipe( switchMap(data => const body = // do your work woth data - first service object ; return this.http.post('YOUR_URL', body); ) ) This is for two service which you written. let suppose i had n number of objects in my array. i want to make a service call one after another sequentially. Once one response then only i will make another api call. Could please let me know i have any ideas regarding this.
– siva.kumar
Nov 14 '18 at 6:13
nestedCalls(user: any) return this.http.get('YOUR_URL').pipe( switchMap(data => const body = // do your work woth data - first service object ; return this.http.post('YOUR_URL', body); ) ) This is for two service which you written. let suppose i had n number of objects in my array. i want to make a service call one after another sequentially. Once one response then only i will make another api call. Could please let me know i have any ideas regarding this.
– siva.kumar
Nov 14 '18 at 6:13
nestedCalls(user: any) return this.http.get('YOUR_URL').pipe( switchMap(data => const body = // do your work woth data - first service object ; return this.http.post('YOUR_URL', body); ) ) This is for two service which you written. let suppose i had n number of objects in my array. i want to make a service call one after another sequentially. Once one response then only i will make another api call. Could please let me know i have any ideas regarding this.
– siva.kumar
Nov 14 '18 at 6:13
add a comment |
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