"Request for the permission of type 'System.Net.WebPermission, System, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089' failed."

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Hi all,

Please help me to solve this problem..

im trying to call my web API from my plugin but its thowing this exception

{"Request for the permission of type 'System.Net.WebPermission, System, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089' failed."}

And My Code Is:

HttpWebRequest request = WebRequest.Create("http://localhost:xxxx/api/CRM") as HttpWebRequest;
request.Method = "Post";
request.KeepAlive = false;
request.Timeout = 20000;
byte[] dataByte = Encoding.ASCII.GetBytes(Json);
request.ContentLength = dataByte.Length;
request.ContentType = "application/json";
Stream dataStream = request.GetRequestStream();
dataStream.Write(dataByte, 0, dataByte.Length);
dataStream.Close();
HttpWebResponse POSTResponse = request.GetResponse() as HttpWebResponse; //Get response from server
StreamReader reader = new StreamReader(POSTResponse.GetResponseStream());
reader.Close();

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Nithya Gopinath 17,078 on at

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Hi Harshad,

Refer the following thread to fix this error.

https://community.dynamics.com/crm/f/117/t/144242

If found useful, please mark as verified.

Thanks

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Community Member on at

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this one is not working .. im calling my plugin from dat plugin im calling web API but its throwing this error

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Nithya Gopinath 17,078 on at

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Hello,

Please refer this thread too.

community.dynamics.com/.../163274

Thanks

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Community Member on at

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is there any way to use the sandbox plugin to call the web APIs?

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Community Member on at

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Hi Nithya,

is there any way to use the sandbox plugin to call the web APIs?

Thanks

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Nithya Gopinath 17,078 on at

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Hi Harshad,

I think the following blog clears your doubt.

debajmecrm.com/.../knowhow-can-we-make-web-api-calls-from-plugins-in-dynamics-crm-2016

Thanks

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Community Member on at

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Hi,

I'm trying to create httpwebrequest and I still getting an Error.

this is my code:

var httpWebRequest = (HttpWebRequest)WebRequest.Create("https://test/requests");

httpWebRequest.ContentType = "application/json";

httpWebRequest.Method = "POST";

httpWebRequest.Accept = "application/json";

httpWebRequest.Headers.Add("x-api-key", "Test");

using (var streamWriter = new StreamWriter(httpWebRequest.GetRequestStream()))

{

string json = "{" +

"customer" + ": {" +

"name" + ":" + "firstname" +

"," + "email" + ":" + "test@test.com" +

"}," +

"brand" + ":" + "Name" + "," +

"employee" + ": {" +

"custom_id" + ":" + "123"+

" }," +

"channel" + ":" + "phone" + "}";

streamWriter.Write(json);

streamWriter.Flush();

streamWriter.Close();

}

var httpResponse = (HttpWebResponse)httpWebRequest.GetResponse();

using (var streamReader = new StreamReader(httpResponse.GetResponseStream()))

{

var result = streamReader.ReadToEnd();

}

please tell me what is the problem and what should I do.

thank you.

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Meenakshi55 on at

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Hi harshad,

I am also facing this type of issue while transfer file to FTP server. In sandbox plugin ,API is being called but throwing error -"System.Net.WebPermission, failed". Please suggest what to do.

Thanks in advance.

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Community Member on at

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Hi Meeanakshi,

You want to register the plugin as none instead of sandbox, for debugging purpose and registering purpose and it will surely work.

Thanks
Harshad Ahammed

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Community Member on at

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Hi Adva,

Your code seems to be have no problem, have you registered the plugin as sand-box or none. please verify that if it is sandbox you cant call external API, so if the plugin is registered with sandbox please change it and it will work surely.

Thanks

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