Try to access .Net webservice using HttpClient

Question

Below is the example in .NET C# language to get resource list for the user

Prepare HttpRequest with proper HEADER details

    HttpClient client = new HttpClient();
    // Authorization header value format is "VST {tokenvalue}"
    client.DefaultRequestHeaders.Authorization = new AuthenticationHeaderValue("VST", securityToken); 
    client.DefaultRequestHeaders.Add("ContentType", "text/json");
    client.DefaultRequestHeaders.Add("Accept", "text/json");*

Need to write the similar code in Java, I have written the below code in java to access the web-service.

Getting error:

HTTP Error 400.

The request has an invalid header name.

HttpGet request = new HttpGet(getRequestUrl(baseUrl,   VideologyConstants.GET_CUSTOMERS_API_URL));
request.setHeader(HttpHeaders.AUTHORIZATION, "VST {" + securityToken + "}");

have you seen that in Java your security header token will be VST { token }? In C# at least I can't see the "{" chars maybe is that? — acostela
– acostela, Commented Oct 7, 2015 at 12:35
Try to debug your full request, because the only header is that. It must be a little error there — acostela
– acostela, Commented Oct 7, 2015 at 12:38
Error: Bad Request - Invalid Header.. new AuthenticationHeaderValue("VST", securityToken);--> .NET C# Code. Need to write similar line of code in java. — VIKASH SINHA
– VIKASH SINHA, Commented Oct 7, 2015 at 13:02

VIKASH SINHA · Accepted Answer · 2015-10-08 13:19:15Z

2

client.DefaultRequestHeaders.Authorization = new AuthenticationHeaderValue("VST", securityToken);

Will produce this header value

Authorization: VST {securityToken}

The way that you can add that header in java is.

httpGet.setHeader("Authorization","VST "+token)

Here you can check the java API http://hc.apache.org/httpcomponents-client-ga/httpclient/apidocs/index.html

edited Oct 8, 2015 at 13:19

VIKASH SINHA

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answered Oct 7, 2015 at 13:19

acostela

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3 Comments

VIKASH SINHA Over a year ago

Tried and setting the correct header in the HttpGet Method but getting the same error. .Net C# code is using AuthenticationHeaderValue class to set security token.. may be it works in different way.

VIKASH SINHA Over a year ago

stackoverflow.com/questions/19039450/…. it is working now.. Thanks acostela httpGet.setHeader("Authorization","VST "+token);

acostela Over a year ago

oh you're welcome. I will edit the answer so it fits with your final solution

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