Adding Http Headers to HttpClient

Question

All   I need to add http headers to the HttpClient before I send a request to a web service  How do I do that for an individual request  as opposed to on the HttpClient to all future requests   I m not sure if this is even possible    var client   new HttpClient    var task       client GetAsync  http   www someURI com        ContinueWith  taskwithmsg    gt                var response   taskwithmsg Result           var jsonTask   response Content ReadAsAsync lt JsonObject gt             jsonTask Wait            var jsonObject   jsonTask Result          task Wait

User · Answer

When it can be the same header for all requests or you dispose the client after each request you can use the DefaultRequestHeaders Add option   client DefaultRequestHeaders Add  apikey   xxxxxxxxx

User · Answer

Create a HttpRequestMessage  set the Method to GET  set your headers and then use SendAsync instead of GetAsync   var client   new HttpClient    var request   new HttpRequestMessage         RequestUri   new Uri  http   www someURI com        Method   HttpMethod Get     request Headers Accept Add new MediaTypeWithQualityHeaderValue  text plain     var task   client SendAsync request       ContinueWith  taskwithmsg    gt                var response   taskwithmsg Result           var jsonTask   response Content ReadAsAsync lt JsonObject gt             jsonTask Wait            var jsonObject   jsonTask Result          task Wait

User · Answer

To set custom headers ON A REQUEST  build a request with the custom header before passing it to httpclient to send to http server  eg   HttpClient client   HttpClients custom   build    HttpUriRequest request   RequestBuilder get      setUri someURL     setHeader HttpHeaders CONTENT TYPE   application json      build    client execute request     Default header is SET ON HTTPCLIENT to send on every request to the server

[c#] Adding Http Headers to HttpClient

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