How to consume the web api in xamarin forms?

Question

Hello,

 

Below is the code for web api, I wanted to consume/call the web api in xamarin forms and bind the result to the picker.

[System.Web.Http.HttpGet]
public HttpResponseMessage GetNames()
{
//Conectionstrings for different databases
string client1 = ConfigurationManager.ConnectionStrings["client_db1"].ConnectionString;
string client2 = ConfigurationManager.ConnectionStrings["client_db2"].ConnectionString;
string client3 = ConfigurationManager.ConnectionStrings["client_db3"].ConnectionString;
//Applying the select command for different databases
SqlConnection con = new SqlConnection(client1);
SqlDataAdapter da1 = new SqlDataAdapter("select provider_name,Id from Provider_details", con);
DataSet ds1 = new DataSet();
da1.Fill(ds1);
con = new SqlConnection(client2);
da1.SelectCommand.Connection = con;
DataSet ds2 = new DataSet();
da1.Fill(ds2);
con = new SqlConnection(client3);
da1.SelectCommand.Connection = con;
DataSet ds3 = new DataSet();
da1.Fill(ds3);
//Merging the database to select the provider name
ds1.Merge(ds2);
ds1.Merge(ds3);
return Request.CreateResponse(HttpStatusCode.OK, ds1);
}

Please help me,

Thanks