public async Task <List <FederalStateResponseModel> > GetFederalStates(CancellationToken cancellationToken)
{
try
{
// https://npgeo-corona-npgeo-de.hub.arcgis.com/datasets/ef4b445a53c1406892257fe63129a8ea_0/geoservice?geometry=-28.786%2C46.270%2C45.042%2C55.886
// https://services7.arcgis.com/mOBPykOjAyBO2ZKk/arcgis/rest/services/Coronaf%C3%A4lle_in_den_Bundesl%C3%A4ndern/FeatureServer/0/query?where=1%3D1&outFields=OBJECTID_1,cases7_bl_per_100k&returnGeometry=false&outSR=4326&f=json
//
var uri = new RkiWebServiceUrlBuilder(_options.BaseUrl)
.AddPathPart(_options.FederalStatesPath)
.AddParameter("where", "1%3D1")
.AddParameter("outFields", string.Join(",", typeof(FederalStateAttributes).GetAttributeValues <JsonPropertyNameAttribute, string>(attribute => attribute.Name)))
.AddParameter("outSR", "4326")
.AddParameter("f", "json")
.AddParameter("returnGeometry", "false")
.Build()
;
_logger.LogInformation($"GET Request uri [{uri}]");
var response = await _httpClient.GetAsync(uri, HttpCompletionOption.ResponseHeadersRead, cancellationToken);
if (!response.IsSuccessStatusCode)
{
throw new EbolappException("Unable to retrieve federal states data. " +
$"[{response.StatusCode}]. " +
$"[{response.ReasonPhrase}].");
}
_logger.LogInformation($"GET Request Status Code [{response.StatusCode}]");
var content = await response.Content.ReadAsStreamAsync();
var responseModel = await JsonSerializer.DeserializeAsync <RkiFederalStatesResponse>(content, _jsonSerializerOptions, cancellationToken)
?? throw new EbolappException($"Unable to parse response model into [{nameof(RkiFederalStatesResponse)}]");
if (responseModel.Error != null)
{
throw new EbolappException($"Unable to retrieve federal states data. " +
$"[{responseModel.Error.Code}]. " +
$"[{responseModel.Error.Message}]. " +
$"[{string.Join("; ", responseModel.Error.Details)}]");
}
return(responseModel
.Features
.Select(FeatureExtensions.ToFederalState)
.ToList());
}
catch (Exception ex)
{
_logger.LogCritical(ex, "Exception while retrieving districts.");
return(null);
}
}
public async Task <List <DistrictResponseModel> > GetDistricts(CancellationToken cancellationToken)
{
try
{
// https://npgeo-corona-npgeo-de.hub.arcgis.com/datasets/917fc37a709542548cc3be077a786c17_0/geoservice?geometry=-19.511%2C46.211%2C41.529%2C55.839
// https://services7.arcgis.com/mOBPykOjAyBO2ZKk/arcgis/rest/services/RKI_Landkreisdaten/FeatureServer/0/query?where=1%3D1&outFields=RS,cases,cases7_per_100k&outSR=4326&f=json&returnGeometry=false
//
var uri = new RkiWebServiceUrlBuilder(_options.BaseUrl)
.AddPathPart(_options.DistrictsPath)
.AddParameter("where", "1%3D1")
.AddParameter("outFields", string.Join(",", typeof(DistrictAttributes).GetAttributeValues <JsonPropertyNameAttribute, string>(attribute => attribute.Name)))
.AddParameter("outSR", "4326")
.AddParameter("f", "json")
.AddParameter("returnGeometry", "false")
.Build()
;
_logger.LogInformation($"GET Request uri [{uri}]");
var response = await _httpClient.GetAsync(uri, HttpCompletionOption.ResponseHeadersRead, cancellationToken);
if (!response.IsSuccessStatusCode)
{
throw new EbolappException("Unable to retrieve district data. " +
$"[{response.StatusCode}]. " +
$"[{response.ReasonPhrase}].");
}
_logger.LogInformation($"GET Request Status Code [{response.StatusCode}]");
var content = await response.Content.ReadAsStreamAsync();
var responseModel = await JsonSerializer.DeserializeAsync <RkiDistrictsResponse>(content, _jsonSerializerOptions, cancellationToken)
?? throw new EbolappException($"Unable to parse response model into [{nameof(RkiDistrictsResponse)}]");
if (responseModel.Error != null)
{
throw new EbolappException($"Unable to retrieve district data. " +
$"[{responseModel.Error.Code}]. " +
$"[{responseModel.Error.Message}]. " +
$"[{string.Join("; ", responseModel.Error.Details)}]");
}
return(responseModel
.Features
.Select(FeatureExtensions.ToDistrict)
.ToList());
}
catch (Exception ex)
{
_logger.LogCritical(ex, "Exception while retrieving districts.");
return(null);
}
}