how to pass query parameter and path paramter in .net http client getasyn method

Question

I need to pass query parameters and path parameters to HttpClient GetAsync() method in .NET

File/{document_id}?version={version_number}

[Route("api/drs/v1/document/getdetails/{Id}")]
[HttpGet]
public async Task<HttpResponseMessage> DocumentDetails(HttpRequestMessage details)
{
    // Debugger.Launch();
    try
    {
        using (HttpClient client = new HttpClient())
        {
            client.DefaultRequestHeaders.Accept.Clear();

            //String path=Request.Url.GetLeftPart(UriPartial.Path);
            HttpResponseMessage response = await client.GetAsync("http://localhost:8089/api/drs/v1/document/getdetail/"]);

            if (response.IsSuccessStatusCode)
            {
                Console.Write("Success");
            }
            else
            {
                Console.Write("Failure");
            }

            return response;
        }
    }
    catch (Exception e)
    {
        throw e;
    }
}

I can't pass both the parameter in GetAsync() method

Query parameters are part of the URL, this part is called the Query string — MindSwipe
– MindSwipe, Commented Jul 29, 2019 at 6:11

evgiv0 · Accepted Answer · 2019-07-29 07:04:39Z

1

Try to use next extension method for building your url. You can pass base url, path and dictionary of paramaters, which you need.

    public static Uri BuildUri(string baseUrl, string path, Dictionary<string, string> queryParams = null)
    {
        var uriBuilder = new UriBuilder(baseUrl) {Path = path};

        if (queryParams != null)
        {
            var query = string.Join("&", queryParams.Select(x => $"{x.Key}={x.Value}").ToArray());
            uriBuilder.Query = query;
        }

        return uriBuilder.Uri;
    }

answered Jul 29, 2019 at 7:04

evgiv0

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