public async Task <PostCodeSearchResult> SearchForPostCode(string postCodeString)
{
Match postCodeMatch = PostCodeRegex.Match(postCodeString);
if (!postCodeMatch.Success)
{
return(null);
}
string country = postCodeMatch.Groups["country"].Value;
string countryAlpha2 = CountryCodeToAlpha2(country);
if (countryAlpha2 == null)
{
return(null);
}
string postCode = postCodeMatch.Groups["postcode"].Value;
var postCodeSearchResult = new PostCodeSearchResult();
using (var client = new HttpClient())
{
client.DefaultRequestHeaders.ConnectionClose = true;
var postCodeSearchUri = new Uri(
$"http://api.geonames.org/postalCodeSearchJSON?postalcode={WebUtility.UrlEncode(postCode)}&country={WebUtility.UrlEncode(countryAlpha2)}&maxRows=1&username={WebUtility.UrlEncode(Config.Username)}"
);
string postCodeSearchResponse = await client.GetStringAsync(postCodeSearchUri);
PopulateWithJsonString(postCodeSearchResult, postCodeSearchResponse);
}
return(postCodeSearchResult);
}
public async Task <GeoName> GetFirstGeoName(string query)
{
PostCodeSearchResult postCodes = await SearchForPostCode(query);
if (postCodes != null)
{
return(postCodes.PostCodeEntries.Any()
? postCodes.PostCodeEntries[0]
: null);
}
GeoSearchResult result = await SearchForLocation(query);
if (result == null)
{
return(null);
}
return(result.GeoNames.Any()
? result.GeoNames[0]
: null);
}
