Get Value from Header ASP.Net Core

Question

Hi All, I want to get value from the header. Means when I pass the parameter from header, I need the value using key from the headers. WebClient webClient = new WebClient(); webClient.QueryString.Add( "param1" , "value1" ); webClient.QueryString.Add( "param2" , "value2" ); string result = webClient.DownloadString( "http://theurl.com" ); Is there any one have idea?

Piyush Pansuriya · Answer

Hi Rohan, You can try this: StringValues value1; Request.Headers.TryGetValue( " param1 " , out value1); var v1= value1 .FirstOrDefault(); in v1 you will get the value of param1 Same as for param2 value2

Ruchi Sharavat · Answer

Are you looking for specific key? if ( webClient.ResponseHeaders . TryGetValues ( "yourkey" , out values )) { string keyval = values . First (); } use this for specific key.

Ruchi Sharavat · Answer

Try this: WebClient webClient = new WebClient(); webClient.QueryString.Add( "param1" , "value1" ); webClient.QueryString.Add( "param2" , "value2" ); string result = webClient.DownloadString( "http://theurl.com" ); WebHeaderCollection myWebHeaderCollection = webClient.ResponseHeaders; for ( int i=0; i Console.WriteLine (myWebHeaderCollection.GetKey(i) + " = " + myWebHeaderCollection.Get(i));

Rohan Ramani · Answer

Thanks piyush, Its works for me..

Rohan Ramani · Answer

Hi Ruchi, yea exectly, but didnt find the proper solution.

Rohan Ramani · Answer

Hi Ruchi, I already passed it , Now I want to get it from header

Ruchi Sharavat · Answer

You mean you want to pass header? If so: If the header already exists: webClient . Headers . Set ( "key" , "value" ); if its a new header: webClient . Headers . Add( "key" , "value" ) ;