我正在尝试创建一个API调用,该调用会将地址的各个部分传递给地址验证服务。该地址必须作为单个查询参数传递。
使用以下代码
string input_address = HttpUtility.UrlEncode( string.Format( "{0} {1} {2} {3}",
location.Street1, location.Street2, location.City, location.PostalCode ) );
如果地址的所有部分都存在,则查询成功,但是如果缺少多个部分,则+号会累积,最终会出现类似的查询。/?api_key=####&query=++ID1+1QD&limit=1
由于额外的“ +”号而失败。
是否可以仅将值不为null的值传递给字符串,而不使用一组if语句?
完整的代码如下:
string input_key = GetAttributeValue( "APIKey" );
string input_address = HttpUtility.UrlEncode( string.Format( "{0} {1} {2} {3}",
location.Street1, location.Street2, location.City, location.PostalCode ) );
var client = new RestClient("https://api.ideal-postcodes.co.uk/");
var request = new RestRequest( Method.GET );
request.RequestFormat = DataFormat.Json;
request.Resource = "v1/addresses/";
request.AddParameter("api_key", input_key);
request.AddParameter("query", input_address);
request.AddParameter("limit", "1");
request.AddHeader("Accept", "application/json");
var response = client.Execute( request );
对于核心问题,是否可以仅将值不为null而不使用一组if语句传递给字符串?
string[] addressParts =
{ location.Street1, location.Street2, location.City, location.PostalCode};
string inputAddress = string.Join(" ", addressParts.Where(s=> !string.IsNullOrEmpty(s)));
inputAddress = HttpUtility.UrlEncode(inputAddress);
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