Solve route and buffer the route geometry

[MuraliSridhar]

I am trying to the solve the route between 2 points and immediately buffering the route geometry.

I can able to solve the route by using the "Esri/resource-proxy" [sourcehttps://github.com/Esri/resource-proxy/releases], changed the proxy config [with routing URL, client id and client secret] and added proxy rule in my code.

Proxy rule:

urlUtils.addProxyRule({

                        urlPrefix: "tasks.arcgisonline.com",

                        proxyUrl: "http://xxxxx/DotNet/proxy.ashx"

                    });

I have been prompted with ArcGIS online signin popup with user name and password,

After successful authentication, I am passing the route geometry to do and show buffer. But I am getting below exception

"Unable to load http://xxxxx/DotNet/proxy.ashx?http://tasks.arcgisonline.com/ArcGIS/rest/services/Geometry/GeometryS... status: 0"

This time I am setting ""esriConfig.defaults.io.alwaysUseProxy = false", but still this request is using proxy

Question 1: How to get rid of sign in popup? I assumed given client Id and client secret will not prompt popup.

Question 2: How to make buffer request with proxy?

Thanks

Murali

[RobertScheitlin__GISP]

Based on the fact that you where getting a login prompt before I would say your proxy has not been working properly yet.

  If you look t this samples description you should get some clues:

Directions | ArcGIS API for JavaScript

//travelModesServiceUrl option points to logistics service hosted from ArcGIS Online

        //by indicating this URL, a login prompt should not display

        var directions = new Directions({

          map: map,

          travelModesServiceUrl: "http://utility.arcgis.com/usrsvcs/servers/cdc3efd03ddd4721b99adce219629489/rest/services/World/Utili..."

        },"dir");

        directions.startup();

[MuraliSridhar]

Robert,

I fixed the routing part yesterday. The issue is proxy is expecting token in config file or in URL.

I also found the reason for second issue do and show buffer, the issue is GeometryService.buffer() is submitting with request method as POST but it is GET method.

My Code :

                      esriConfig.defaults.geometryService = new GeometryService(geometryServiceUrl);

                      esriConfig.defaults.io.proxyUrl = '/proxy/';

                     esriConfig.defaults.io.alwaysUseProxy = false;

                     esriConfig.defaults.geometryService.buffer(params, showBuffer);

param = bufferparameter and show buffer is callback method.

I am using the same code in another widget, its submitting as GET.

The only difference is, In this widget first I am using the "Esri/resource-proxy" for routing and I am using  '/proxy/' and alwaysUseProxy = false for GeometryService.

Will that is making any difference?

Is there any way to set request method as GET for GeometryService.buffer() manually?

Thanks

Murali

[RobertScheitlin__GISP]

Murali,

   Esri will switch to POST automatically when the url string exceeds the length that your particular browser can support with GET.

You could look into setRequestPreCallback

esri/request | API Reference | ArcGIS API for JavaScript

[AndrewNault1]

This is a really good comment.