NativeScript HTTP Request Promise + WebApi Error









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Using NativeScript, I am getting an error calling my C# WebApi if I do so in the "then" callback function of another HTTP request:



request(
url: 'API_ONE_URL',
method: 'GET'
).then((response: HttpResponse) =>
request(
url: 'API_TWO_URL',
method: 'GET'
).then((response: HttpResponse) =>
// Do something
, (e) =>
);
, (e) =>
);


The error I get is "Collection was modified after the enumerator was instantiated." It does not matter what sort of API I call. I created the following API to test an "empty" controller:



using System.Net;
using System.Net.Http;
using System.Web.Http;

namespace MyProject.Controllers

public class EX_TestController : ApiController

public HttpResponseMessage Get()

return Request.CreateResponse(HttpStatusCode.OK, new Success = true );





"API_ONE_URL" works fine. If I call "API_TWO_URL" outside of the request callback function , it works fine. But if I call "API_TWO" inside of the callback for "API_ONE", I get that error.



I am stumped, any insight would be awesome!










share|improve this question





















  • Sounds to me that is from your API itself and nothing seems specific to N here.
    – Manoj
    Nov 11 at 10:18











  • May be did you try calling third party stubs, for instance jsonplaceholder.typicode.com
    – Manoj
    Nov 11 at 10:27















up vote
0
down vote

favorite












Using NativeScript, I am getting an error calling my C# WebApi if I do so in the "then" callback function of another HTTP request:



request(
url: 'API_ONE_URL',
method: 'GET'
).then((response: HttpResponse) =>
request(
url: 'API_TWO_URL',
method: 'GET'
).then((response: HttpResponse) =>
// Do something
, (e) =>
);
, (e) =>
);


The error I get is "Collection was modified after the enumerator was instantiated." It does not matter what sort of API I call. I created the following API to test an "empty" controller:



using System.Net;
using System.Net.Http;
using System.Web.Http;

namespace MyProject.Controllers

public class EX_TestController : ApiController

public HttpResponseMessage Get()

return Request.CreateResponse(HttpStatusCode.OK, new Success = true );





"API_ONE_URL" works fine. If I call "API_TWO_URL" outside of the request callback function , it works fine. But if I call "API_TWO" inside of the callback for "API_ONE", I get that error.



I am stumped, any insight would be awesome!










share|improve this question





















  • Sounds to me that is from your API itself and nothing seems specific to N here.
    – Manoj
    Nov 11 at 10:18











  • May be did you try calling third party stubs, for instance jsonplaceholder.typicode.com
    – Manoj
    Nov 11 at 10:27













up vote
0
down vote

favorite









up vote
0
down vote

favorite











Using NativeScript, I am getting an error calling my C# WebApi if I do so in the "then" callback function of another HTTP request:



request(
url: 'API_ONE_URL',
method: 'GET'
).then((response: HttpResponse) =>
request(
url: 'API_TWO_URL',
method: 'GET'
).then((response: HttpResponse) =>
// Do something
, (e) =>
);
, (e) =>
);


The error I get is "Collection was modified after the enumerator was instantiated." It does not matter what sort of API I call. I created the following API to test an "empty" controller:



using System.Net;
using System.Net.Http;
using System.Web.Http;

namespace MyProject.Controllers

public class EX_TestController : ApiController

public HttpResponseMessage Get()

return Request.CreateResponse(HttpStatusCode.OK, new Success = true );





"API_ONE_URL" works fine. If I call "API_TWO_URL" outside of the request callback function , it works fine. But if I call "API_TWO" inside of the callback for "API_ONE", I get that error.



I am stumped, any insight would be awesome!










share|improve this question













Using NativeScript, I am getting an error calling my C# WebApi if I do so in the "then" callback function of another HTTP request:



request(
url: 'API_ONE_URL',
method: 'GET'
).then((response: HttpResponse) =>
request(
url: 'API_TWO_URL',
method: 'GET'
).then((response: HttpResponse) =>
// Do something
, (e) =>
);
, (e) =>
);


The error I get is "Collection was modified after the enumerator was instantiated." It does not matter what sort of API I call. I created the following API to test an "empty" controller:



using System.Net;
using System.Net.Http;
using System.Web.Http;

namespace MyProject.Controllers

public class EX_TestController : ApiController

public HttpResponseMessage Get()

return Request.CreateResponse(HttpStatusCode.OK, new Success = true );





"API_ONE_URL" works fine. If I call "API_TWO_URL" outside of the request callback function , it works fine. But if I call "API_TWO" inside of the callback for "API_ONE", I get that error.



I am stumped, any insight would be awesome!







c# nativescript






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asked Nov 10 at 21:41









smann

1




1











  • Sounds to me that is from your API itself and nothing seems specific to N here.
    – Manoj
    Nov 11 at 10:18











  • May be did you try calling third party stubs, for instance jsonplaceholder.typicode.com
    – Manoj
    Nov 11 at 10:27

















  • Sounds to me that is from your API itself and nothing seems specific to N here.
    – Manoj
    Nov 11 at 10:18











  • May be did you try calling third party stubs, for instance jsonplaceholder.typicode.com
    – Manoj
    Nov 11 at 10:27
















Sounds to me that is from your API itself and nothing seems specific to N here.
– Manoj
Nov 11 at 10:18





Sounds to me that is from your API itself and nothing seems specific to N here.
– Manoj
Nov 11 at 10:18













May be did you try calling third party stubs, for instance jsonplaceholder.typicode.com
– Manoj
Nov 11 at 10:27





May be did you try calling third party stubs, for instance jsonplaceholder.typicode.com
– Manoj
Nov 11 at 10:27


















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