GetImageMetadataAsync(CafEEFluxParameters parameters)
{
// TODO: Error checking
EEFluxRequest requestContent = getEEFluxRequest(parameters);
StringContent content =
new StringContent(JsonConvert.SerializeObject(requestContent));
Uri uri = new Uri(baseAddress, "landsat");
HttpResponseMessage response = await client.PostAsync(
uri.ToString(),
content);
if (response.IsSuccessStatusCode)
{
string result = response.Content.ReadAsStringAsync().Result;
Dictionary <int, EEFluxImageMetadata> imageMetadatas =
JsonConvert.DeserializeObject <Dictionary <int, EEFluxImageMetadata> >(result);
return(imageMetadatas);
}
else
{
return(new Dictionary <int, EEFluxImageMetadata>());
}
}
/// <summary>
/// Gets an image URL by sending an HTTP POST to {baseAddress}/{imageType}
/// </summary>
/// <param name="parameters">Required parameters to be set: StartDate, EndDate, ImageId, Latitude, Longitude</param>
/// <param name="imageId">ID of image</param>
/// <param name="imageType">Type of image to be requested (NDVI, Actual ET, etc)</param>
/// <returns></returns>
public async Task <Dictionary <EEFluxImageTypes, EEFluxImage> > GetImageUriAsync(
CafEEFluxParameters parameters,
string imageId,
EEFluxImageTypes imageType)
{
EEFluxRequest requestContent = getEEFluxRequest(
parameters,
imageId);
StringContent content =
new StringContent(JsonConvert.SerializeObject(requestContent));
Uri uri =
new Uri(baseAddress, this.imageTypeToUriMap[imageType]);
HttpResponseMessage response = await client.PostAsync(
uri.ToString(),
content);
if (response.IsSuccessStatusCode)
{
string result = response.Content.ReadAsStringAsync().Result;
Dictionary <EEFluxImageTypes, EEFluxImage> imageUris =
JsonConvert.DeserializeObject <
Dictionary <EEFluxImageTypes, EEFluxImage> >(result);
return(imageUris);
}
else
{
return(new Dictionary <EEFluxImageTypes, EEFluxImage>());
}
}
/// <summary>
/// Converts CafEEFluxParameters to EEFluxRequest
/// </summary>
/// <param name="parameters">CafEEFluxParameters, expects StartDate, EndDate, ImageId, Latitude, Longitude</param>
/// <param name="imageId"></param>
/// <returns></returns>
private EEFluxRequest getEEFluxRequest(
CafEEFluxParameters parameters,
string imageId = "")
{
EEFluxRequest eefluxRequest = new EEFluxRequest()
{
Date =
$"{parameters.StartDate.ToString("yyyy-MM-dd")} to " +
$"{parameters.EndDate.ToString("yyyy-MM-dd")}",
ImageId = imageId,
Lat = parameters.Latitude,
Lon = parameters.Longitude
};
return(eefluxRequest);
}
