I am doing to below from JavaScript API. Passing parameters from Javascript to a GPService in ArcGIS Server Is there a way to do the same from C# in .Net framework? if so how? var gpUrl = "https://xyz.gov/arcgis/rest/services/Test/createGeometry/GPServer/Geometry" ; var gp = new Geoprocessor ( gpUrl ) ; for ( var f = 0 ; f text . length ; f ++ ) { obj = JSON . parse ( text ) ; varaddress = obj . employees [ f ] . address ; vardistance = obj . employees [ f ] . distance ; varid = obj . employees [ f ] . id ; var params = { address : varaddress , distance : vardistance , uniqueid : varid } ; gp . execute ( params ) ; }

Hi jay kapalczynski, For this kind of custom web request call, I normally hack by reading the network traffic. My best candidate is fiddler. First step, I only the gptask, execute task page, Second I open the fiddler. to track that post request call and, I will click [Execute Task (Post)] button from the page. Third try to find from the fiddler the post request call. Final step : I try and write same post request call with C#, try and capture the .net web request call network traffic with fiddler as well. Capturing Traffic from .NET Services with Fiddler And then I compare this two traffic and tweak the c# code, mostly paramstring part. Good luck, this is my trick I have update your total code after I played with a GPTask with c# a few changes. That should be good now protected void btnPassParameters_Click ( object sender , EventArgs e ) { string gpUrl = "https://xxxa.gov/arcgis/rest/services/Test/Counties/GPServer/create" ; string requestUrl = gpUrl + "/execute" ; //make sure requestUrl end with execute ** HttpWebRequest request = ( HttpWebRequest ) WebRequest . Create ( new Uri ( requestUrl ) ) ; request . KeepAlive = true ; request . Method = "POST" ; request . AllowAutoRedirect = true ; request . CookieContainer = new System . Net . CookieContainer ( ) ; request . ContentType = "application/x-www-form-urlencoded" ; // my mistake should be form StringBuilder paramString = new StringBuilder ( ) ; string inputParam = "{\"employees\":[{\"address\":\"1520 Split Oak Ln, Henrico, Virginia, 23229\",\"distance\":\"10\",\"id\":\"9a35172e071f4a33b191172a9b4b02ae\"}]}" ; // for this inputParam part, instead of escaping the string how about you save json text into a file and read like that , string inputParam = System.IO.File.ReadAllText("your file path") paramString . Append ( $ "request=" + inputParam ) ; //no need ? paramString . Append ( $ "&f=json" ) ; byte [ ] data = Encoding . ASCII . GetBytes ( paramString . ToString ( ) ) ; request . ContentLength = data . Length ; Stream requestStream = request . GetRequestStream ( ) ; requestStream . Write ( data , 0 , data . Length ) ; requestStream . Close ( ) ; HttpWebResponse response = ( HttpWebResponse ) request . GetResponse ( ) ; string responseStr = getStringFromWebResponse ( response ) ; Response . Write ( responseStr ) ; }

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call GP Service with C#

jaykapalczynski

I am doing to below from JavaScript API.

Passing parameters from Javascript to a GPService in ArcGIS Server

Is there a way to do the same from C# in .Net framework? if so how?

<SPAN class="keyword token">var</SPAN> gpUrl <SPAN class="operator token">=</SPAN> <SPAN class="string token">"https://xyz.gov/arcgis/rest/services/Test/createGeometry/GPServer/Geometry"</SPAN><SPAN class="punctuation token">;</SPAN>

<SPAN class="keyword token">var</SPAN> gp <SPAN class="operator token">=</SPAN> <SPAN class="keyword token">new</SPAN> <SPAN class="token class-name">Geoprocessor</SPAN><SPAN class="punctuation token">(</SPAN>gpUrl<SPAN class="punctuation token">)</SPAN><SPAN class="punctuation token">;</SPAN>


          <SPAN class="keyword token">for</SPAN> <SPAN class="punctuation token">(</SPAN><SPAN class="keyword token">var</SPAN> f <SPAN class="operator token">=</SPAN> <SPAN class="number token">0</SPAN><SPAN class="punctuation token">;</SPAN> f <SPAN class="operator token"><</SPAN> text<SPAN class="punctuation token">.</SPAN>length<SPAN class="punctuation token">;</SPAN> f<SPAN class="operator token">++</SPAN><SPAN class="punctuation token">)</SPAN> <SPAN class="punctuation token">{</SPAN>
                obj <SPAN class="operator token">=</SPAN> JSON<SPAN class="punctuation token">.</SPAN><SPAN class="token function">parse</SPAN><SPAN class="punctuation token">(</SPAN>text<SPAN class="punctuation token">)</SPAN><SPAN class="punctuation token">;</SPAN>

                varaddress <SPAN class="operator token">=</SPAN> obj<SPAN class="punctuation token">.</SPAN>employees<SPAN class="punctuation token">[</SPAN>f<SPAN class="punctuation token">]</SPAN><SPAN class="punctuation token">.</SPAN>address<SPAN class="punctuation token">;</SPAN>
                vardistance <SPAN class="operator token">=</SPAN> obj<SPAN class="punctuation token">.</SPAN>employees<SPAN class="punctuation token">[</SPAN>f<SPAN class="punctuation token">]</SPAN><SPAN class="punctuation token">.</SPAN>distance<SPAN class="punctuation token">;</SPAN>
                varid <SPAN class="operator token">=</SPAN> obj<SPAN class="punctuation token">.</SPAN>employees<SPAN class="punctuation token">[</SPAN>f<SPAN class="punctuation token">]</SPAN><SPAN class="punctuation token">.</SPAN>id<SPAN class="punctuation token">;</SPAN>

                <SPAN class="keyword token">var</SPAN> params <SPAN class="operator token">=</SPAN> <SPAN class="punctuation token">{</SPAN>
                    address<SPAN class="punctuation token">:</SPAN> varaddress<SPAN class="punctuation token">,</SPAN>
                    distance<SPAN class="punctuation token">:</SPAN> vardistance<SPAN class="punctuation token">,</SPAN>
                    uniqueid<SPAN class="punctuation token">:</SPAN> varid
                <SPAN class="punctuation token">}</SPAN><SPAN class="punctuation token">;</SPAN>

                gp<SPAN class="punctuation token">.</SPAN><SPAN class="token function">execute</SPAN><SPAN class="punctuation token">(</SPAN>params<SPAN class="punctuation token">)</SPAN><SPAN class="punctuation token">;</SPAN>
            <SPAN class="punctuation token">}</SPAN><SPAN class="line-numbers-rows"><SPAN>‍</SPAN><SPAN>‍</SPAN><SPAN>‍</SPAN><SPAN>‍</SPAN><SPAN>‍</SPAN><SPAN>‍</SPAN><SPAN>‍</SPAN><SPAN>‍</SPAN><SPAN>‍</SPAN><SPAN>‍</SPAN><SPAN>‍</SPAN><SPAN>‍</SPAN><SPAN>‍</SPAN><SPAN>‍</SPAN><SPAN>‍</SPAN><SPAN>‍</SPAN><SPAN>‍</SPAN><SPAN>‍</SPAN><SPAN>‍</SPAN><SPAN>‍</SPAN></SPAN>

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Anonymous User

Hi jay kapalczynski‌,

For this kind of custom web request call, I normally hack by reading the network traffic.

My best candidate is fiddler.

First step, I only the gptask, execute task page,

Second I open the fiddler. to track that post request call and, I will click [Execute Task (Post)] button from the page.

Third try to find from the fiddler the post request call.

Final step : I try and write same post request call with C#, try and capture the .net web request call network traffic with fiddler as well.

Capturing Traffic from .NET Services with Fiddler

And then I compare this two traffic and tweak the c# code, mostly paramstring part.

Good luck, this is my trick

I have update your total code after I played with a GPTask with c# a few changes. That should be good now

 <SPAN class="keyword token">protected</SPAN> <SPAN class="keyword token">void</SPAN> <SPAN class="token function">btnPassParameters_Click</SPAN><SPAN class="punctuation token">(</SPAN><SPAN class="keyword token">object</SPAN> sender<SPAN class="punctuation token">,</SPAN> EventArgs e<SPAN class="punctuation token">)</SPAN>
        <SPAN class="punctuation token">{</SPAN>
            <SPAN class="keyword token">string</SPAN> gpUrl <SPAN class="operator token">=</SPAN> <SPAN class="string token">"https://xxxa.gov/arcgis/rest/services/Test/Counties/GPServer/create"</SPAN><SPAN class="punctuation token">;</SPAN>
            <SPAN class="keyword token">string</SPAN> requestUrl <SPAN class="operator token">=</SPAN> gpUrl <SPAN class="operator token">+</SPAN> <SPAN class="string token">"/execute"</SPAN><SPAN class="punctuation token">;</SPAN>

<SPAN class="comment token">//make sure requestUrl end with execute **</SPAN>
            HttpWebRequest request <SPAN class="operator token">=</SPAN> <SPAN class="punctuation token">(</SPAN>HttpWebRequest<SPAN class="punctuation token">)</SPAN>WebRequest<SPAN class="punctuation token">.</SPAN><SPAN class="token function">Create</SPAN><SPAN class="punctuation token">(</SPAN><SPAN class="keyword token">new</SPAN> <SPAN class="token class-name">Uri</SPAN><SPAN class="punctuation token">(</SPAN>requestUrl <SPAN class="punctuation token">)</SPAN><SPAN class="punctuation token">)</SPAN><SPAN class="punctuation token">;</SPAN>

            request<SPAN class="punctuation token">.</SPAN>KeepAlive <SPAN class="operator token">=</SPAN> <SPAN class="keyword token">true</SPAN><SPAN class="punctuation token">;</SPAN>
            request<SPAN class="punctuation token">.</SPAN>Method <SPAN class="operator token">=</SPAN> <SPAN class="string token">"POST"</SPAN><SPAN class="punctuation token">;</SPAN>

            request<SPAN class="punctuation token">.</SPAN>AllowAutoRedirect <SPAN class="operator token">=</SPAN> <SPAN class="keyword token">true</SPAN><SPAN class="punctuation token">;</SPAN>
            request<SPAN class="punctuation token">.</SPAN>CookieContainer <SPAN class="operator token">=</SPAN> <SPAN class="keyword token">new</SPAN> <SPAN class="token class-name">System<SPAN class="punctuation token">.</SPAN>Net<SPAN class="punctuation token">.</SPAN>CookieContainer</SPAN><SPAN class="punctuation token">(</SPAN><SPAN class="punctuation token">)</SPAN><SPAN class="punctuation token">;</SPAN>

            request<SPAN class="punctuation token">.</SPAN>ContentType <SPAN class="operator token">=</SPAN> <SPAN class="string token">"application/x-www-form-urlencoded"</SPAN><SPAN class="punctuation token">;</SPAN><SPAN class="comment token">// my mistake should be form</SPAN>

            StringBuilder paramString <SPAN class="operator token">=</SPAN> <SPAN class="keyword token">new</SPAN> <SPAN class="token class-name">StringBuilder</SPAN><SPAN class="punctuation token">(</SPAN><SPAN class="punctuation token">)</SPAN><SPAN class="punctuation token">;</SPAN>

            <SPAN class="keyword token">string</SPAN> inputParam <SPAN class="operator token">=</SPAN> <SPAN class="string token">"{\"employees\":[{\"address\":\"1520 Split Oak Ln, Henrico, Virginia, 23229\",\"distance\":\"10\",\"id\":\"9a35172e071f4a33b191172a9b4b02ae\"}]}"</SPAN><SPAN class="punctuation token">;</SPAN>

<SPAN class="comment token">// for this inputParam part, instead of escaping the string how about you save json text into a file and read like that , string inputParam = System.IO.File.ReadAllText("your file path")</SPAN>

            paramString<SPAN class="punctuation token">.</SPAN><SPAN class="token function">Append</SPAN><SPAN class="punctuation token">(</SPAN>$<SPAN class="string token">"request="</SPAN><SPAN class="operator token">+</SPAN> inputParam<SPAN class="punctuation token">)</SPAN><SPAN class="punctuation token">;</SPAN><SPAN class="comment token">//no need ?</SPAN>
            
            paramString<SPAN class="punctuation token">.</SPAN><SPAN class="token function">Append</SPAN><SPAN class="punctuation token">(</SPAN>$<SPAN class="string token">"&f=json"</SPAN><SPAN class="punctuation token">)</SPAN><SPAN class="punctuation token">;</SPAN>

            <SPAN class="keyword token">byte</SPAN><SPAN class="punctuation token">[</SPAN><SPAN class="punctuation token">]</SPAN> data <SPAN class="operator token">=</SPAN> Encoding<SPAN class="punctuation token">.</SPAN>ASCII<SPAN class="punctuation token">.</SPAN><SPAN class="token function">GetBytes</SPAN><SPAN class="punctuation token">(</SPAN>paramString<SPAN class="punctuation token">.</SPAN><SPAN class="token function">ToString</SPAN><SPAN class="punctuation token">(</SPAN><SPAN class="punctuation token">)</SPAN><SPAN class="punctuation token">)</SPAN><SPAN class="punctuation token">;</SPAN>
            request<SPAN class="punctuation token">.</SPAN>ContentLength <SPAN class="operator token">=</SPAN> data<SPAN class="punctuation token">.</SPAN>Length<SPAN class="punctuation token">;</SPAN>

            Stream requestStream <SPAN class="operator token">=</SPAN> request<SPAN class="punctuation token">.</SPAN><SPAN class="token function">GetRequestStream</SPAN><SPAN class="punctuation token">(</SPAN><SPAN class="punctuation token">)</SPAN><SPAN class="punctuation token">;</SPAN>

            requestStream<SPAN class="punctuation token">.</SPAN><SPAN class="token function">Write</SPAN><SPAN class="punctuation token">(</SPAN>data<SPAN class="punctuation token">,</SPAN> <SPAN class="number token">0</SPAN><SPAN class="punctuation token">,</SPAN> data<SPAN class="punctuation token">.</SPAN>Length<SPAN class="punctuation token">)</SPAN><SPAN class="punctuation token">;</SPAN>
            requestStream<SPAN class="punctuation token">.</SPAN><SPAN class="token function">Close</SPAN><SPAN class="punctuation token">(</SPAN><SPAN class="punctuation token">)</SPAN><SPAN class="punctuation token">;</SPAN>

            HttpWebResponse response <SPAN class="operator token">=</SPAN> <SPAN class="punctuation token">(</SPAN>HttpWebResponse<SPAN class="punctuation token">)</SPAN>request<SPAN class="punctuation token">.</SPAN><SPAN class="token function">GetResponse</SPAN><SPAN class="punctuation token">(</SPAN><SPAN class="punctuation token">)</SPAN><SPAN class="punctuation token">;</SPAN>

            <SPAN class="keyword token">string</SPAN> responseStr <SPAN class="operator token">=</SPAN> <SPAN class="token function">getStringFromWebResponse</SPAN><SPAN class="punctuation token">(</SPAN>response<SPAN class="punctuation token">)</SPAN><SPAN class="punctuation token">;</SPAN>
            
        Response<SPAN class="punctuation token">.</SPAN><SPAN class="token function">Write</SPAN><SPAN class="punctuation token">(</SPAN>responseStr<SPAN class="punctuation token">)</SPAN><SPAN class="punctuation token">;</SPAN>


        <SPAN class="punctuation token">}</SPAN>
<SPAN class="line-numbers-rows"><SPAN>‍</SPAN><SPAN>‍</SPAN><SPAN>‍</SPAN><SPAN>‍</SPAN><SPAN>‍</SPAN><SPAN>‍</SPAN><SPAN>‍</SPAN><SPAN>‍</SPAN><SPAN>‍</SPAN><SPAN>‍</SPAN><SPAN>‍</SPAN><SPAN>‍</SPAN><SPAN>‍</SPAN><SPAN>‍</SPAN><SPAN>‍</SPAN><SPAN>‍</SPAN><SPAN>‍</SPAN><SPAN>‍</SPAN><SPAN>‍</SPAN><SPAN>‍</SPAN><SPAN>‍</SPAN><SPAN>‍</SPAN><SPAN>‍</SPAN><SPAN>‍</SPAN><SPAN>‍</SPAN><SPAN>‍</SPAN><SPAN>‍</SPAN><SPAN>‍</SPAN><SPAN>‍</SPAN><SPAN>‍</SPAN><SPAN>‍</SPAN><SPAN>‍</SPAN><SPAN>‍</SPAN><SPAN>‍</SPAN><SPAN>‍</SPAN><SPAN>‍</SPAN><SPAN>‍</SPAN><SPAN>‍</SPAN><SPAN>‍</SPAN><SPAN>‍</SPAN><SPAN>‍</SPAN><SPAN>‍</SPAN></SPAN>

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jaykapalczynski

Than Aung‌

2nd Loaded Last question....

Where can I read up more on this solution? Is there decent documentation and some hello world examples?

Can I also work with map like the arcgis JavaScript api 4.14? Query, return results write to graphics layer etc?

I am trying to deal with the " " in my string as such...

string inputParam = "{\"employees\":[{\"address\":\"1520 Split Oak Ln, Henrico, Virginia, 23229\",\"distance\":\"10\",\"id\":\"9a35172e071f4a33b191172a9b4b02ae\"}]}";

Should I have to use a ? like this

paramString<SPAN class="punctuation token">.</SPAN><SPAN class="token function">Append</SPAN><SPAN class="punctuation token">(</SPAN>$<SPAN class="string token">"?request="</SPAN><SPAN class="operator token">+</SPAN> inputParam<SPAN class="punctuation token">)</SPAN><SPAN class="punctuation token">;</SPAN>‍<SPAN class="line-numbers-rows"><SPAN>‍</SPAN></SPAN>

I can go into the RestEndpoint and input as such and it works great.....BUT for some reason the way I am passing the parameter its not working....

IT works from the restendpoint fine but does not work from C#

This is my total code

        <SPAN class="keyword token">protected</SPAN> <SPAN class="keyword token">void</SPAN> <SPAN class="token function">btnPassParameters_Click</SPAN><SPAN class="punctuation token">(</SPAN><SPAN class="keyword token">object</SPAN> sender<SPAN class="punctuation token">,</SPAN> EventArgs e<SPAN class="punctuation token">)</SPAN>
        <SPAN class="punctuation token">{</SPAN>
            <SPAN class="keyword token">string</SPAN> gpUrl <SPAN class="operator token">=</SPAN> <SPAN class="string token">"https://xxxa.gov/arcgis/rest/services/Test/Counties/GPServer/create"</SPAN><SPAN class="punctuation token">;</SPAN>
            <SPAN class="keyword token">string</SPAN> requestUrl <SPAN class="operator token">=</SPAN> gpUrl <SPAN class="operator token">+</SPAN> <SPAN class="string token">"/execute"</SPAN><SPAN class="punctuation token">;</SPAN>
            HttpWebRequest request <SPAN class="operator token">=</SPAN> <SPAN class="punctuation token">(</SPAN>HttpWebRequest<SPAN class="punctuation token">)</SPAN>WebRequest<SPAN class="punctuation token">.</SPAN><SPAN class="token function">Create</SPAN><SPAN class="punctuation token">(</SPAN><SPAN class="keyword token">new</SPAN> <SPAN class="token class-name">Uri</SPAN><SPAN class="punctuation token">(</SPAN>gpUrl<SPAN class="punctuation token">)</SPAN><SPAN class="punctuation token">)</SPAN><SPAN class="punctuation token">;</SPAN>

            request<SPAN class="punctuation token">.</SPAN>KeepAlive <SPAN class="operator token">=</SPAN> <SPAN class="keyword token">true</SPAN><SPAN class="punctuation token">;</SPAN>
            request<SPAN class="punctuation token">.</SPAN>Method <SPAN class="operator token">=</SPAN> <SPAN class="string token">"POST"</SPAN><SPAN class="punctuation token">;</SPAN>

            request<SPAN class="punctuation token">.</SPAN>AllowAutoRedirect <SPAN class="operator token">=</SPAN> <SPAN class="keyword token">true</SPAN><SPAN class="punctuation token">;</SPAN>
            request<SPAN class="punctuation token">.</SPAN>CookieContainer <SPAN class="operator token">=</SPAN> <SPAN class="keyword token">new</SPAN> <SPAN class="token class-name">System<SPAN class="punctuation token">.</SPAN>Net<SPAN class="punctuation token">.</SPAN>CookieContainer</SPAN><SPAN class="punctuation token">(</SPAN><SPAN class="punctuation token">)</SPAN><SPAN class="punctuation token">;</SPAN>

            request<SPAN class="punctuation token">.</SPAN>ContentType <SPAN class="operator token">=</SPAN> <SPAN class="string token">"application/json"</SPAN><SPAN class="punctuation token">;</SPAN>
            StringBuilder paramString <SPAN class="operator token">=</SPAN> <SPAN class="keyword token">new</SPAN> <SPAN class="token class-name">StringBuilder</SPAN><SPAN class="punctuation token">(</SPAN><SPAN class="punctuation token">)</SPAN><SPAN class="punctuation token">;</SPAN>

            <SPAN class="keyword token">string</SPAN> inputParam <SPAN class="operator token">=</SPAN> <SPAN class="string token">"{\"employees\":[{\"address\":\"1520 Split Oak Ln, Henrico, Virginia, 23229\",\"distance\":\"10\",\"id\":\"9a35172e071f4a33b191172a9b4b02ae\"}]}"</SPAN><SPAN class="punctuation token">;</SPAN>

            paramString<SPAN class="punctuation token">.</SPAN><SPAN class="token function">Append</SPAN><SPAN class="punctuation token">(</SPAN>$<SPAN class="string token">"?request="</SPAN><SPAN class="operator token">+</SPAN> inputParam<SPAN class="punctuation token">)</SPAN><SPAN class="punctuation token">;</SPAN>
            <SPAN class="comment token">//paramString.Append($"request={requestParamString}");</SPAN>
            paramString<SPAN class="punctuation token">.</SPAN><SPAN class="token function">Append</SPAN><SPAN class="punctuation token">(</SPAN>$<SPAN class="string token">"&f=json"</SPAN><SPAN class="punctuation token">)</SPAN><SPAN class="punctuation token">;</SPAN>

            <SPAN class="keyword token">byte</SPAN><SPAN class="punctuation token">[</SPAN><SPAN class="punctuation token">]</SPAN> data <SPAN class="operator token">=</SPAN> Encoding<SPAN class="punctuation token">.</SPAN>ASCII<SPAN class="punctuation token">.</SPAN><SPAN class="token function">GetBytes</SPAN><SPAN class="punctuation token">(</SPAN>paramString<SPAN class="punctuation token">.</SPAN><SPAN class="token function">ToString</SPAN><SPAN class="punctuation token">(</SPAN><SPAN class="punctuation token">)</SPAN><SPAN class="punctuation token">)</SPAN><SPAN class="punctuation token">;</SPAN>
            request<SPAN class="punctuation token">.</SPAN>ContentLength <SPAN class="operator token">=</SPAN> data<SPAN class="punctuation token">.</SPAN>Length<SPAN class="punctuation token">;</SPAN>

            Stream requestStream <SPAN class="operator token">=</SPAN> request<SPAN class="punctuation token">.</SPAN><SPAN class="token function">GetRequestStream</SPAN><SPAN class="punctuation token">(</SPAN><SPAN class="punctuation token">)</SPAN><SPAN class="punctuation token">;</SPAN>

            requestStream<SPAN class="punctuation token">.</SPAN><SPAN class="token function">Write</SPAN><SPAN class="punctuation token">(</SPAN>data<SPAN class="punctuation token">,</SPAN> <SPAN class="number token">0</SPAN><SPAN class="punctuation token">,</SPAN> data<SPAN class="punctuation token">.</SPAN>Length<SPAN class="punctuation token">)</SPAN><SPAN class="punctuation token">;</SPAN>
            requestStream<SPAN class="punctuation token">.</SPAN><SPAN class="token function">Close</SPAN><SPAN class="punctuation token">(</SPAN><SPAN class="punctuation token">)</SPAN><SPAN class="punctuation token">;</SPAN>

            HttpWebResponse response <SPAN class="operator token">=</SPAN> <SPAN class="punctuation token">(</SPAN>HttpWebResponse<SPAN class="punctuation token">)</SPAN>request<SPAN class="punctuation token">.</SPAN><SPAN class="token function">GetResponse</SPAN><SPAN class="punctuation token">(</SPAN><SPAN class="punctuation token">)</SPAN><SPAN class="punctuation token">;</SPAN>

            <SPAN class="keyword token">string</SPAN> responseStr <SPAN class="operator token">=</SPAN> <SPAN class="token function">getStringFromWebResponse</SPAN><SPAN class="punctuation token">(</SPAN>response<SPAN class="punctuation token">)</SPAN><SPAN class="punctuation token">;</SPAN>
            
        Response<SPAN class="punctuation token">.</SPAN><SPAN class="token function">Write</SPAN><SPAN class="punctuation token">(</SPAN>responseStr<SPAN class="punctuation token">)</SPAN><SPAN class="punctuation token">;</SPAN>


        <SPAN class="punctuation token">}</SPAN>


        <SPAN class="keyword token">public</SPAN> <SPAN class="keyword token">string</SPAN> <SPAN class="token function">getStringFromWebResponse</SPAN><SPAN class="punctuation token">(</SPAN>WebResponse response<SPAN class="punctuation token">)</SPAN>
        <SPAN class="punctuation token">{</SPAN>
            <SPAN class="comment token">// Get the stream containing content returned by the server.</SPAN>
            Stream responseDataStream <SPAN class="operator token">=</SPAN> response<SPAN class="punctuation token">.</SPAN><SPAN class="token function">GetResponseStream</SPAN><SPAN class="punctuation token">(</SPAN><SPAN class="punctuation token">)</SPAN><SPAN class="punctuation token">;</SPAN>
            <SPAN class="comment token">// Open the stream using a StreamReader for easy access.</SPAN>
            StreamReader reader <SPAN class="operator token">=</SPAN> <SPAN class="keyword token">new</SPAN> <SPAN class="token class-name">StreamReader</SPAN><SPAN class="punctuation token">(</SPAN>responseDataStream<SPAN class="punctuation token">)</SPAN><SPAN class="punctuation token">;</SPAN>
            <SPAN class="comment token">// Read the content.</SPAN>
            <SPAN class="keyword token">string</SPAN> responseFromServer <SPAN class="operator token">=</SPAN> reader<SPAN class="punctuation token">.</SPAN><SPAN class="token function">ReadToEnd</SPAN><SPAN class="punctuation token">(</SPAN><SPAN class="punctuation token">)</SPAN><SPAN class="punctuation token">;</SPAN>

            <SPAN class="comment token">// Clean up the streams.</SPAN>
            reader<SPAN class="punctuation token">.</SPAN><SPAN class="token function">Close</SPAN><SPAN class="punctuation token">(</SPAN><SPAN class="punctuation token">)</SPAN><SPAN class="punctuation token">;</SPAN>
            responseDataStream<SPAN class="punctuation token">.</SPAN><SPAN class="token function">Close</SPAN><SPAN class="punctuation token">(</SPAN><SPAN class="punctuation token">)</SPAN><SPAN class="punctuation token">;</SPAN>
            response<SPAN class="punctuation token">.</SPAN><SPAN class="token function">Close</SPAN><SPAN class="punctuation token">(</SPAN><SPAN class="punctuation token">)</SPAN><SPAN class="punctuation token">;</SPAN>
            <SPAN class="keyword token">return</SPAN> responseFromServer<SPAN class="punctuation token">;</SPAN>
        <SPAN class="punctuation token">}</SPAN>‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍<SPAN class="line-numbers-rows"><SPAN>‍</SPAN><SPAN>‍</SPAN><SPAN>‍</SPAN><SPAN>‍</SPAN><SPAN>‍</SPAN><SPAN>‍</SPAN><SPAN>‍</SPAN><SPAN>‍</SPAN><SPAN>‍</SPAN><SPAN>‍</SPAN><SPAN>‍</SPAN><SPAN>‍</SPAN><SPAN>‍</SPAN><SPAN>‍</SPAN><SPAN>‍</SPAN><SPAN>‍</SPAN><SPAN>‍</SPAN><SPAN>‍</SPAN><SPAN>‍</SPAN><SPAN>‍</SPAN><SPAN>‍</SPAN><SPAN>‍</SPAN><SPAN>‍</SPAN><SPAN>‍</SPAN><SPAN>‍</SPAN><SPAN>‍</SPAN><SPAN>‍</SPAN><SPAN>‍</SPAN><SPAN>‍</SPAN><SPAN>‍</SPAN><SPAN>‍</SPAN><SPAN>‍</SPAN><SPAN>‍</SPAN><SPAN>‍</SPAN><SPAN>‍</SPAN><SPAN>‍</SPAN><SPAN>‍</SPAN><SPAN>‍</SPAN><SPAN>‍</SPAN><SPAN>‍</SPAN><SPAN>‍</SPAN><SPAN>‍</SPAN><SPAN>‍</SPAN><SPAN>‍</SPAN><SPAN>‍</SPAN><SPAN>‍</SPAN><SPAN>‍</SPAN><SPAN>‍</SPAN><SPAN>‍</SPAN><SPAN>‍</SPAN><SPAN>‍</SPAN><SPAN>‍</SPAN><SPAN>‍</SPAN><SPAN>‍</SPAN></SPAN>

jaykapalczynski

Having an issue....trying to pass this string

{"employees":[{"address":"2125 Baldwin Avenue,Crofton,MD, 21114","distance":"50","id":"4e0e9919-b88f-4073-a621-1279de2a3579"}] }

it could be this as well...

{"employees":[{"address":"2125 Baldwin Avenue,Crofton,MD, 21114","distance":"50","id":"4e0e9919-b88f-4073-a621-1279de2a3579"}, {"address":"1245 Baldwin Avenue,Crofton,MD, 21114","distance":"50","id":"4e0e9919-b88f-4073-a621-1279de2a3579"}] }

If I put " " around my parameter it does not like it....

string requestParamString = " {"employees":[{"address":"2125 Baldwin Avenue, #40,Crofton,MD, 21114","distance":"50","id":"4e0e9919-b88f-4073-a621-1279de2a3579"}] } "

Anonymous User

Hi jay kapalczynski‌,

Yes you are in right track, you can use nugget arcgis runtime sdk.

Alternatively you can perform simple web request as well. (Post request is recommended)

Below is the simple code snippet, will need to modify based on your gptask params.

<SPAN class="keyword token">string</SPAN> gpUrl <SPAN class="operator token">=</SPAN> "xyz<SPAN class="comment token">//GPServer/GPTaskName";</SPAN>
            <SPAN class="keyword token">string</SPAN> requestUrl <SPAN class="operator token">=</SPAN> gpUrl <SPAN class="operator token">+</SPAN> <SPAN class="string token">"/execute"</SPAN><SPAN class="punctuation token">;</SPAN>
            HttpWebRequest request <SPAN class="operator token">=</SPAN> <SPAN class="punctuation token">(</SPAN>HttpWebRequest<SPAN class="punctuation token">)</SPAN>WebRequest<SPAN class="punctuation token">.</SPAN><SPAN class="token function">Create</SPAN><SPAN class="punctuation token">(</SPAN><SPAN class="keyword token">new</SPAN> <SPAN class="token class-name">Uri</SPAN><SPAN class="punctuation token">(</SPAN>gpUrl<SPAN class="punctuation token">)</SPAN><SPAN class="punctuation token">)</SPAN><SPAN class="punctuation token">;</SPAN>
            
            request<SPAN class="punctuation token">.</SPAN>KeepAlive <SPAN class="operator token">=</SPAN> <SPAN class="keyword token">true</SPAN><SPAN class="punctuation token">;</SPAN>
            request<SPAN class="punctuation token">.</SPAN>Method <SPAN class="operator token">=</SPAN> <SPAN class="string token">"POST"</SPAN><SPAN class="punctuation token">;</SPAN>

            request<SPAN class="punctuation token">.</SPAN>AllowAutoRedirect <SPAN class="operator token">=</SPAN> <SPAN class="keyword token">true</SPAN><SPAN class="punctuation token">;</SPAN>
            request<SPAN class="punctuation token">.</SPAN>CookieContainer <SPAN class="operator token">=</SPAN> <SPAN class="keyword token">new</SPAN> <SPAN class="token class-name">System<SPAN class="punctuation token">.</SPAN>Net<SPAN class="punctuation token">.</SPAN>CookieContainer</SPAN><SPAN class="punctuation token">(</SPAN><SPAN class="punctuation token">)</SPAN><SPAN class="punctuation token">;</SPAN>


            request<SPAN class="punctuation token">.</SPAN>ContentType <SPAN class="operator token">=</SPAN> <SPAN class="string token">"application/json"</SPAN><SPAN class="punctuation token">;</SPAN>
            StringBuilder paramString <SPAN class="operator token">=</SPAN> <SPAN class="keyword token">new</SPAN> <SPAN class="token class-name">StringBuilder</SPAN><SPAN class="punctuation token">(</SPAN><SPAN class="punctuation token">)</SPAN><SPAN class="punctuation token">;</SPAN>
           
            <SPAN class="comment token">/**
             * 
             *  var params = {
                request: dictstring
            };
            **/</SPAN>
            <SPAN class="keyword token">string</SPAN> requestParamString <SPAN class="operator token">=</SPAN> <SPAN class="string token">"[your json request param string]"</SPAN><SPAN class="punctuation token">;</SPAN>
            paramString<SPAN class="punctuation token">.</SPAN><SPAN class="token function">Append</SPAN><SPAN class="punctuation token">(</SPAN>$<SPAN class="string token">"request={requestParamString}"</SPAN><SPAN class="punctuation token">)</SPAN><SPAN class="punctuation token">;</SPAN>
            paramString<SPAN class="punctuation token">.</SPAN><SPAN class="token function">Append</SPAN><SPAN class="punctuation token">(</SPAN>$<SPAN class="string token">"&f=json"</SPAN><SPAN class="punctuation token">)</SPAN><SPAN class="punctuation token">;</SPAN><SPAN class="comment token">//append like that if you need additional param //f=json to get as json response string, and you can do the same for additional gptask param value</SPAN>
        

            <SPAN class="keyword token">byte</SPAN><SPAN class="punctuation token">[</SPAN><SPAN class="punctuation token">]</SPAN> data <SPAN class="operator token">=</SPAN> Encoding<SPAN class="punctuation token">.</SPAN>ASCII<SPAN class="punctuation token">.</SPAN><SPAN class="token function">GetBytes</SPAN><SPAN class="punctuation token">(</SPAN>paramString<SPAN class="punctuation token">.</SPAN><SPAN class="token function">ToString</SPAN><SPAN class="punctuation token">(</SPAN><SPAN class="punctuation token">)</SPAN><SPAN class="punctuation token">)</SPAN><SPAN class="punctuation token">;</SPAN>
            request<SPAN class="punctuation token">.</SPAN>ContentLength <SPAN class="operator token">=</SPAN> data<SPAN class="punctuation token">.</SPAN>Length<SPAN class="punctuation token">;</SPAN>

            Stream requestStream <SPAN class="operator token">=</SPAN> request<SPAN class="punctuation token">.</SPAN><SPAN class="token function">GetRequestStream</SPAN><SPAN class="punctuation token">(</SPAN><SPAN class="punctuation token">)</SPAN><SPAN class="punctuation token">;</SPAN>
            requestStream<SPAN class="punctuation token">.</SPAN><SPAN class="token function">Write</SPAN><SPAN class="punctuation token">(</SPAN>data<SPAN class="punctuation token">,</SPAN> <SPAN class="number token">0</SPAN><SPAN class="punctuation token">,</SPAN> data<SPAN class="punctuation token">.</SPAN>Length<SPAN class="punctuation token">)</SPAN><SPAN class="punctuation token">;</SPAN>
            requestStream<SPAN class="punctuation token">.</SPAN><SPAN class="token function">Close</SPAN><SPAN class="punctuation token">(</SPAN><SPAN class="punctuation token">)</SPAN><SPAN class="punctuation token">;</SPAN>
           

            HttpWebResponse response <SPAN class="operator token">=</SPAN> <SPAN class="punctuation token">(</SPAN>HttpWebResponse<SPAN class="punctuation token">)</SPAN>request<SPAN class="punctuation token">.</SPAN><SPAN class="token function">GetResponse</SPAN><SPAN class="punctuation token">(</SPAN><SPAN class="punctuation token">)</SPAN><SPAN class="punctuation token">;</SPAN>

            <SPAN class="keyword token">string</SPAN> responseStr <SPAN class="operator token">=</SPAN> <SPAN class="token function">getStringFromWebResponse</SPAN><SPAN class="punctuation token">(</SPAN>response<SPAN class="punctuation token">)</SPAN><SPAN class="punctuation token">;</SPAN>
            Console<SPAN class="punctuation token">.</SPAN><SPAN class="token function">WriteLine</SPAN><SPAN class="punctuation token">(</SPAN>responseStr<SPAN class="punctuation token">)</SPAN><SPAN class="punctuation token">;</SPAN>


<SPAN class="line-numbers-rows"><SPAN>‍</SPAN><SPAN>‍</SPAN><SPAN>‍</SPAN><SPAN>‍</SPAN><SPAN>‍</SPAN><SPAN>‍</SPAN><SPAN>‍</SPAN><SPAN>‍</SPAN><SPAN>‍</SPAN><SPAN>‍</SPAN><SPAN>‍</SPAN><SPAN>‍</SPAN><SPAN>‍</SPAN><SPAN>‍</SPAN><SPAN>‍</SPAN><SPAN>‍</SPAN><SPAN>‍</SPAN><SPAN>‍</SPAN><SPAN>‍</SPAN><SPAN>‍</SPAN><SPAN>‍</SPAN><SPAN>‍</SPAN><SPAN>‍</SPAN><SPAN>‍</SPAN><SPAN>‍</SPAN><SPAN>‍</SPAN><SPAN>‍</SPAN><SPAN>‍</SPAN><SPAN>‍</SPAN><SPAN>‍</SPAN><SPAN>‍</SPAN><SPAN>‍</SPAN><SPAN>‍</SPAN><SPAN>‍</SPAN><SPAN>‍</SPAN><SPAN>‍</SPAN><SPAN>‍</SPAN><SPAN>‍</SPAN><SPAN>‍</SPAN></SPAN>

getStringFromWebResponse method

<SPAN class="keyword token">public</SPAN> <SPAN class="keyword token">string</SPAN> <SPAN class="token function">getStringFromWebResponse</SPAN><SPAN class="punctuation token">(</SPAN>WebResponse response<SPAN class="punctuation token">)</SPAN>
        <SPAN class="punctuation token">{</SPAN>
            <SPAN class="comment token">// Get the stream containing content returned by the server.</SPAN>
            Stream responseDataStream <SPAN class="operator token">=</SPAN> response<SPAN class="punctuation token">.</SPAN><SPAN class="token function">GetResponseStream</SPAN><SPAN class="punctuation token">(</SPAN><SPAN class="punctuation token">)</SPAN><SPAN class="punctuation token">;</SPAN>
            <SPAN class="comment token">// Open the stream using a StreamReader for easy access.</SPAN>
            StreamReader reader <SPAN class="operator token">=</SPAN> <SPAN class="keyword token">new</SPAN> <SPAN class="token class-name">StreamReader</SPAN><SPAN class="punctuation token">(</SPAN>responseDataStream<SPAN class="punctuation token">)</SPAN><SPAN class="punctuation token">;</SPAN>
            <SPAN class="comment token">// Read the content.</SPAN>
            <SPAN class="keyword token">string</SPAN> responseFromServer <SPAN class="operator token">=</SPAN> reader<SPAN class="punctuation token">.</SPAN><SPAN class="token function">ReadToEnd</SPAN><SPAN class="punctuation token">(</SPAN><SPAN class="punctuation token">)</SPAN><SPAN class="punctuation token">;</SPAN>

            <SPAN class="comment token">// Clean up the streams.</SPAN>
            reader<SPAN class="punctuation token">.</SPAN><SPAN class="token function">Close</SPAN><SPAN class="punctuation token">(</SPAN><SPAN class="punctuation token">)</SPAN><SPAN class="punctuation token">;</SPAN>
            responseDataStream<SPAN class="punctuation token">.</SPAN><SPAN class="token function">Close</SPAN><SPAN class="punctuation token">(</SPAN><SPAN class="punctuation token">)</SPAN><SPAN class="punctuation token">;</SPAN>
            response<SPAN class="punctuation token">.</SPAN><SPAN class="token function">Close</SPAN><SPAN class="punctuation token">(</SPAN><SPAN class="punctuation token">)</SPAN><SPAN class="punctuation token">;</SPAN>
            <SPAN class="keyword token">return</SPAN> responseFromServer<SPAN class="punctuation token">;</SPAN>
        <SPAN class="punctuation token">}</SPAN><SPAN class="line-numbers-rows"><SPAN>‍</SPAN><SPAN>‍</SPAN><SPAN>‍</SPAN><SPAN>‍</SPAN><SPAN>‍</SPAN><SPAN>‍</SPAN><SPAN>‍</SPAN><SPAN>‍</SPAN><SPAN>‍</SPAN><SPAN>‍</SPAN><SPAN>‍</SPAN><SPAN>‍</SPAN><SPAN>‍</SPAN><SPAN>‍</SPAN><SPAN>‍</SPAN></SPAN>

import shall be

<SPAN class="keyword token">using</SPAN> System<SPAN class="punctuation token">;</SPAN>
<SPAN class="keyword token">using</SPAN> System<SPAN class="punctuation token">.</SPAN>IO<SPAN class="punctuation token">;</SPAN>
<SPAN class="keyword token">using</SPAN> System<SPAN class="punctuation token">.</SPAN>Net<SPAN class="punctuation token">;</SPAN>
<SPAN class="keyword token">using</SPAN> System<SPAN class="punctuation token">.</SPAN>Text<SPAN class="punctuation token">;</SPAN><SPAN class="line-numbers-rows"><SPAN>‍</SPAN><SPAN>‍</SPAN><SPAN>‍</SPAN><SPAN>‍</SPAN></SPAN>

jaykapalczynski

I am having a hard time with this.....

I have a .NET webform C# project. I want to call a GP Service, pass it parameters and get results back

I am currently doing the below in JavaScript and it works great....

but I want to be in a form loop in C# and call it directly from there....

What SDK? API? do I use? I am trying to create a website, so can I even do this with the SDKs?

What are all the little references I need to reference to get the code to work?

I have never done this from C# before....

Can someone show me how to reference what I need to reference and make this simple call?

    window<SPAN class="punctuation token">.</SPAN>JsController <SPAN class="operator token">=</SPAN> <SPAN class="punctuation token">{</SPAN>
        btnGISPush_Click<SPAN class="punctuation token">:</SPAN> <SPAN class="keyword token">function</SPAN> <SPAN class="punctuation token">(</SPAN><SPAN class="punctuation token">)</SPAN> <SPAN class="punctuation token">{</SPAN>

            <SPAN class="keyword token">var</SPAN> dictstring <SPAN class="operator token">=</SPAN> document<SPAN class="punctuation token">.</SPAN><SPAN class="token function">getElementById</SPAN><SPAN class="punctuation token">(</SPAN>JSONstring<SPAN class="punctuation token">)</SPAN><SPAN class="punctuation token">.</SPAN>value<SPAN class="punctuation token">;</SPAN>

            <SPAN class="keyword token">var</SPAN> params <SPAN class="operator token">=</SPAN> <SPAN class="punctuation token">{</SPAN>
                request<SPAN class="punctuation token">:</SPAN> dictstring
            <SPAN class="punctuation token">}</SPAN><SPAN class="punctuation token">;</SPAN>

            window<SPAN class="punctuation token">.</SPAN>gpJSON<SPAN class="punctuation token">.</SPAN><SPAN class="token function">execute</SPAN><SPAN class="punctuation token">(</SPAN>params<SPAN class="punctuation token">)</SPAN><SPAN class="punctuation token">.</SPAN><SPAN class="token function">then</SPAN><SPAN class="punctuation token">(</SPAN><SPAN class="keyword token">function</SPAN> <SPAN class="punctuation token">(</SPAN>resultVal<SPAN class="punctuation token">)</SPAN> <SPAN class="punctuation token">{</SPAN>
                finalGPResults <SPAN class="operator token">=</SPAN> resultVal<SPAN class="punctuation token">.</SPAN>results<SPAN class="punctuation token">[</SPAN><SPAN class="number token">0</SPAN><SPAN class="punctuation token">]</SPAN><SPAN class="punctuation token">.</SPAN>value<SPAN class="punctuation token">;</SPAN>
                document<SPAN class="punctuation token">.</SPAN><SPAN class="token function">getElementById</SPAN><SPAN class="punctuation token">(</SPAN><SPAN class="string token">'resultsreturnedfromGPService'</SPAN><SPAN class="punctuation token">)</SPAN><SPAN class="punctuation token">.</SPAN>value <SPAN class="operator token">=</SPAN> finalGPResults<SPAN class="punctuation token">;</SPAN>
            <SPAN class="punctuation token">}</SPAN><SPAN class="punctuation token">,</SPAN>
                <SPAN class="keyword token">function</SPAN> <SPAN class="punctuation token">(</SPAN>err<SPAN class="punctuation token">)</SPAN> <SPAN class="punctuation token">{</SPAN>
                    console<SPAN class="punctuation token">.</SPAN><SPAN class="token function">log</SPAN><SPAN class="punctuation token">(</SPAN>err<SPAN class="punctuation token">)</SPAN><SPAN class="punctuation token">;</SPAN>
                <SPAN class="punctuation token">}</SPAN>
            <SPAN class="punctuation token">)</SPAN><SPAN class="punctuation token">;</SPAN>

        <SPAN class="punctuation token">}</SPAN>   <SPAN class="comment token">// END OF BUTTON CLICK FUNCTION</SPAN>
    <SPAN class="punctuation token">}</SPAN><SPAN class="punctuation token">;</SPAN>   <SPAN class="comment token">// END OF JS CONTROLLER‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍</SPAN><SPAN class="line-numbers-rows"><SPAN>‍</SPAN><SPAN>‍</SPAN><SPAN>‍</SPAN><SPAN>‍</SPAN><SPAN>‍</SPAN><SPAN>‍</SPAN><SPAN>‍</SPAN><SPAN>‍</SPAN><SPAN>‍</SPAN><SPAN>‍</SPAN><SPAN>‍</SPAN><SPAN>‍</SPAN><SPAN>‍</SPAN><SPAN>‍</SPAN><SPAN>‍</SPAN><SPAN>‍</SPAN><SPAN>‍</SPAN><SPAN>‍</SPAN><SPAN>‍</SPAN><SPAN>‍</SPAN></SPAN>

jaykapalczynski

think i found it here..

Run a geoprocessing task—ArcGIS Runtime SDK for .NET | ArcGIS for Developers

have not done this before an not sure what I have to install along with Visual Studio or reference or include in my code.

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