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Initial resumable file upload.

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This commit is contained in:
Mark van der Wal 2020-03-25 17:31:42 +01:00
parent 2a8f4cbb8d
commit d546edaa0d
11 changed files with 462 additions and 68 deletions
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2
FarmmapsApi/FarmmapsApi.csproj
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@ -5,6 +5,7 @@
</PropertyGroup>
<ItemGroup>
<PackageReference Include="Google.Apis" Version="1.44.1" />
<PackageReference Include="Microsoft.AspNetCore.SignalR.Client" Version="3.1.2" />
<PackageReference Include="Microsoft.Extensions.DependencyInjection" Version="3.1.2" />
<PackageReference Include="Microsoft.Extensions.Http" Version="3.1.2" />
@ -12,6 +13,7 @@
<PackageReference Include="Microsoft.Extensions.Logging.Console" Version="3.1.2" />
<PackageReference Include="Microsoft.Extensions.Configuration.Json" Version="3.1.2" />
<PackageReference Include="IdentityModel.OidcClient" Version="3.1.2" />
<PackageReference Include="Winista.MimeDetect" Version="1.0.1" />
</ItemGroup>
</Project>

1
FarmmapsApi/Models/Configuration.cs
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@ -4,6 +4,7 @@
{
public string Authority { get; set; }
public string Endpoint { get; set; }
public string BasePath { get; set; }
public string DiscoveryEndpointUrl { get; set; }
public string RedirectUri { get; set; }
public string ClientId { get; set; }

45
FarmmapsApi/Models/FileRequest.cs Normal file
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@ -0,0 +1,45 @@
using System.ComponentModel.DataAnnotations;
using Newtonsoft.Json.Linq;
namespace FarmmapsApi.Models
{
public class FileRequest
{
/// <summary>
/// Code of the parent
/// </summary>
/// <example>41971e7ea8a446069a817e66b608dcae</example>
public string ParentCode { get; set; }
/// <summary>
/// Geometry meta data
/// </summary>
/// <example>{"type": "Point","coordinates": [5.27, 52.10]}</example>
public JObject Geometry { get; set; }
/// <summary>
/// Name of the file to upload
/// </summary>
/// <example>MyFile.tiff</example>
[Required]
public string Name { get; set; }
/// <summary>
/// Size of the file to upload
/// </summary>
/// <example>67351</example>
[Required]
public long Size { get; set; }
/// <summary>
/// If a chunked upload, the size of a single chunk
/// </summary>
/// <example>1048576</example>
public long ChunkSize { get; set; }
/// <summary>
/// Optional data for the item coupled with the file
/// </summary>
public JObject Data { get; set; }
}
}

17
FarmmapsApi/Models/FileResponse.cs Normal file
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@ -0,0 +1,17 @@
namespace FarmmapsApi.Models
{
public class FileResponse : FileRequest
{
/// <summary>
/// Code created for the registered file, use this in subsequent calls
/// </summary>
/// <example>a00fbd18320742c787f99f952aef0dbb</example>
public string Code { get; set; }
/// <summary>
/// If a chunked upload, the number of chunks to upload
/// </summary>
/// <example>1</example>
public long Chunks { get; set; }
}
}

149
FarmmapsApi/Services/FarmmapsApiService.cs
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@ -10,18 +10,20 @@ using System.Text;
using System.Threading.Tasks;
using System.Web;
using FarmmapsApi.Models;
using Google.Apis.Http;
using Google.Apis.Upload;
using IdentityModel;
using Microsoft.AspNetCore.Http.Connections;
using Microsoft.AspNetCore.SignalR.Client;
using Microsoft.Extensions.Logging;
using Newtonsoft.Json;
using Newtonsoft.Json.Linq;
using Winista.Mime;
namespace FarmmapsApi.Services
{
public class FarmmapsApiService
{
private readonly ILogger<FarmmapsApiService> _logger;
private readonly HttpClient _httpClient;
private readonly OpenIdConnectService _openIdConnectService;
private readonly Configuration _configuration;
@ -30,10 +32,9 @@ namespace FarmmapsApi.Services
public event Action<EventMessage> EventCallback;
public FarmmapsApiService(HttpClient httpClient, ILogger<FarmmapsApiService> logger,
public FarmmapsApiService(HttpClient httpClient,
OpenIdConnectService openIdConnectService, Configuration configuration)
{
_logger = logger;
_httpClient = httpClient;
_openIdConnectService = openIdConnectService;
_configuration = configuration;
@ -65,8 +66,7 @@ namespace FarmmapsApi.Services
private async Task StartEventHub(string accessToken)
{
var uri = new Uri(_configuration.Endpoint);
var eventEndpoint = $"{uri.Scheme}://{uri.Host}:{uri.Port}/EventHub";
var eventEndpoint = $"{_configuration.Endpoint}/EventHub";
_hubConnection = new HubConnectionBuilder()
.WithUrl(eventEndpoint, HttpTransportType.WebSockets,
options => options.SkipNegotiation = true)
@ -78,7 +78,7 @@ namespace FarmmapsApi.Services
await AuthenticateEventHub(accessToken);
_hubConnection.Reconnected += async s => await AuthenticateEventHub(accessToken);
_hubConnection.On("event", (Object @event) => _logger.LogInformation(@event.ToString()));
_hubConnection.On("event", (EventMessage eventMessage) => EventCallback?.Invoke(eventMessage));
}
private async Task AuthenticateEventHub(string accessToken)
@ -88,7 +88,8 @@ namespace FarmmapsApi.Services
public async Task<string> GetCurrentUserCodeAsync()
{
var response = await _httpClient.GetAsync(ResourceEndpoints.CURRENTUSER_RESOURCE);
var url = $"{_configuration.BasePath}/{ResourceEndpoints.CURRENTUSER_RESOURCE}";
var response = await _httpClient.GetAsync(url);
if (!response.IsSuccessStatusCode)
throw new Exception(response.ReasonPhrase);
@ -100,7 +101,8 @@ namespace FarmmapsApi.Services
public async Task<List<UserRoot>> GetCurrentUserRootsAsync()
{
var response = await _httpClient.GetAsync(ResourceEndpoints.MYROOTS_RESOURCE);
var url = $"{_configuration.BasePath}/{ResourceEndpoints.MYROOTS_RESOURCE}";
var response = await _httpClient.GetAsync(url);
if (!response.IsSuccessStatusCode)
throw new Exception(response.ReasonPhrase);
@ -121,15 +123,16 @@ namespace FarmmapsApi.Services
public async Task<List<Item>> GetItemsAsync(string itemCode, string itemType = null, JObject dataFilter = null)
{
var resourceUri = string.Format(ResourceEndpoints.ITEMS_RESOURCE, itemCode);
var url = $"{_configuration.BasePath}/{ResourceEndpoints.ITEMS_RESOURCE}";
var resourceUri = string.Format(url, itemCode);
var queryString = HttpUtility.ParseQueryString(string.Empty);
if(itemType != null)
if (itemType != null)
queryString["it"] = itemType;
if(dataFilter != null)
queryString["df"] = dataFilter.ToString(Formatting.None);
if (dataFilter != null)
queryString["df"] = dataFilter.ToString(Formatting.None);
resourceUri = (queryString.Count > 0 ? $"{resourceUri}?" : resourceUri) + queryString;
@ -149,7 +152,8 @@ namespace FarmmapsApi.Services
private async Task<Item> GetItemSingleAsync(string itemCode, string itemType = null)
{
var resourceUri = string.Format(ResourceEndpoints.ITEMS_RESOURCE, itemCode);
var url = $"{_configuration.BasePath}/{ResourceEndpoints.ITEMS_RESOURCE}";
var resourceUri = string.Format(url, itemCode);
if (!string.IsNullOrEmpty(itemType))
resourceUri = $"{resourceUri}/{itemType}";
@ -168,17 +172,19 @@ namespace FarmmapsApi.Services
return JsonConvert.DeserializeObject<Item>(jsonString);
}
public async Task<List<Item>> GetItemChildrenAsync(string itemCode, string itemType = null, JObject dataFilter = null)
public async Task<List<Item>> GetItemChildrenAsync(string itemCode, string itemType = null,
JObject dataFilter = null)
{
var resourceUri = string.Format(ResourceEndpoints.ITEMS_CHILDREN_RESOURCE, itemCode);
var url = $"{_configuration.BasePath}/{ResourceEndpoints.ITEMS_CHILDREN_RESOURCE}";
var resourceUri = string.Format(url, itemCode);
var queryString = HttpUtility.ParseQueryString(string.Empty);
if(itemType != null)
if (itemType != null)
queryString["it"] = itemType;
if(dataFilter != null)
queryString["df"] = dataFilter.ToString(Formatting.None);
if (dataFilter != null)
queryString["df"] = dataFilter.ToString(Formatting.None);
resourceUri = (queryString.Count > 0 ? $"{resourceUri}?" : resourceUri) + queryString;
@ -195,8 +201,9 @@ namespace FarmmapsApi.Services
{
var jsonString = JsonConvert.SerializeObject(itemRequest);
var content = new StringContent(jsonString, Encoding.UTF8,MediaTypeNames.Application.Json);
var response = await _httpClient.PostAsync(ResourceEndpoints.ITEMS_CREATE_RESOURCE,
var url = $"{_configuration.BasePath}/{ResourceEndpoints.ITEMS_CREATE_RESOURCE}";
var content = new StringContent(jsonString, Encoding.UTF8, MediaTypeNames.Application.Json);
var response = await _httpClient.PostAsync(url,
content);
if (!response.IsSuccessStatusCode)
@ -208,7 +215,8 @@ namespace FarmmapsApi.Services
public async Task DeleteItemAsync(string itemCode)
{
var resourceUri = string.Format(ResourceEndpoints.ITEMS_RESOURCE, itemCode);
var url = $"{_configuration.BasePath}/{ResourceEndpoints.ITEMS_RESOURCE}";
var resourceUri = string.Format(url, itemCode);
var response = await _httpClient.DeleteAsync(resourceUri);
if (!response.IsSuccessStatusCode)
@ -219,7 +227,8 @@ namespace FarmmapsApi.Services
{
var jsonString = JsonConvert.SerializeObject(itemCodes);
var content = new StringContent(jsonString);
var response = await _httpClient.PostAsync(ResourceEndpoints.ITEMS_DELETE_RESOURCE, content);
var url = $"{_configuration.BasePath}/{ResourceEndpoints.ITEMS_DELETE_RESOURCE}";
var response = await _httpClient.PostAsync(url, content);
if (!response.IsSuccessStatusCode)
throw new Exception(response.ReasonPhrase);
@ -227,10 +236,11 @@ namespace FarmmapsApi.Services
public async Task DownloadItemAsync(string itemCode, string filePath)
{
var resourceUri = string.Format(ResourceEndpoints.ITEMS_DOWNLOAD_RESOURCE, itemCode);
var url = $"{_configuration.BasePath}/{ResourceEndpoints.ITEMS_DOWNLOAD_RESOURCE}";
var resourceUri = string.Format(url, itemCode);
var response = await _httpClient.GetAsync(resourceUri, HttpCompletionOption.ResponseHeadersRead);
if(response.IsSuccessStatusCode)
if (response.IsSuccessStatusCode)
{
await using Stream streamToReadFrom = await response.Content.ReadAsStreamAsync();
await using Stream streamToWriteTo = File.Open(filePath, FileMode.Create);
@ -244,10 +254,11 @@ namespace FarmmapsApi.Services
public async Task<string> QueueTaskAsync(string itemCode, TaskRequest taskRequest)
{
var resourceUri = string.Format(ResourceEndpoints.ITEMTASK_REQUEST_RESOURCE, itemCode);
var url = $"{_configuration.BasePath}/{ResourceEndpoints.ITEMTASK_REQUEST_RESOURCE}";
var resourceUri = string.Format(url, itemCode);
var jsonString = JsonConvert.SerializeObject(taskRequest);
var content = new StringContent(jsonString, Encoding.UTF8,MediaTypeNames.Application.Json);
var content = new StringContent(jsonString, Encoding.UTF8, MediaTypeNames.Application.Json);
var response = await _httpClient.PostAsync(resourceUri, content);
if (!response.IsSuccessStatusCode)
@ -261,7 +272,8 @@ namespace FarmmapsApi.Services
public async Task<List<ItemTaskStatus>> GetTasksStatusAsync(string itemCode)
{
var resourceUri = string.Format(ResourceEndpoints.ITEMTASKS_RESOURCE, itemCode);
var url = $"{_configuration.BasePath}/{ResourceEndpoints.ITEMTASKS_RESOURCE}";
var resourceUri = string.Format(url, itemCode);
var response = await _httpClient.GetAsync(resourceUri);
if (!response.IsSuccessStatusCode)
@ -273,7 +285,8 @@ namespace FarmmapsApi.Services
public async Task<ItemTaskStatus> GetTaskStatusAsync(string itemCode, string itemTaskCode)
{
var resourceUri = string.Format(ResourceEndpoints.ITEMTASK_RESOURCE, itemCode, itemTaskCode);
var url = $"{_configuration.BasePath}/{ResourceEndpoints.ITEMTASK_RESOURCE}";
var resourceUri = string.Format(url, itemCode, itemTaskCode);
var response = await _httpClient.GetAsync(resourceUri);
if (!response.IsSuccessStatusCode)
@ -282,5 +295,85 @@ namespace FarmmapsApi.Services
var jsonString = await response.Content.ReadAsStringAsync();
return JsonConvert.DeserializeObject<ItemTaskStatus>(jsonString);
}
/// <summary>
/// Experimental
/// </summary>
/// <param name="filePath"></param>
/// <param name="parentItemCode"></param>
/// <param name="uploadCallback"></param>
/// <returns></returns>
/// <exception cref="FileNotFoundException"></exception>
public async Task<Uri> UploadFile(string filePath, string parentItemCode, Action<IUploadProgress> uploadCallback)
{
if (!File.Exists(filePath))
throw new FileNotFoundException($"File not found {filePath}");
var mimeTypes = new MimeTypes();
var mimeType = mimeTypes.GetMimeTypeFromFile(filePath);
await using var uploadStream = new FileStream(filePath, FileMode.OpenOrCreate);
var request = new FileRequest()
{
Name = Path.GetFileName(filePath),
ParentCode = parentItemCode,
Size = uploadStream.Length
};
Uri uploadIdentifierUri = null;
using var httpClient = CreateConfigurableHttpClient(_httpClient);
var farmmapsUploader = new FarmmapsUploader(httpClient, uploadStream, request, mimeType.ToString());
farmmapsUploader.ProgressChanged += uploadCallback;
farmmapsUploader.UploadSessionData += data => uploadIdentifierUri = data.UploadUri;
await farmmapsUploader.UploadAsync();
return uploadIdentifierUri;
}
/// <summary>
/// Experimental
/// </summary>
/// <param name="filePath"></param>
/// <param name="location"></param>
/// <param name="uploadCallback"></param>
/// <returns></returns>
/// <exception cref="FileNotFoundException"></exception>
private async Task<Uri> ResumeUploadFile(string filePath, Uri location, Action<IUploadProgress> uploadCallback)
{
if (!File.Exists(filePath))
throw new FileNotFoundException($"File not found {filePath}");
await using var uploadStream = new FileStream(filePath, FileMode.OpenOrCreate);
var request = new FileRequest()
{
Name = Path.GetFileName(filePath),
ParentCode = string.Empty,
Size = uploadStream.Length
};
using var httpClient = CreateConfigurableHttpClient(_httpClient);
var farmmapsUploader = new FarmmapsUploader(httpClient, uploadStream, request, string.Empty);
farmmapsUploader.ProgressChanged += uploadCallback;
await farmmapsUploader.ResumeAsync(location);
return location;
}
private ConfigurableHttpClient CreateConfigurableHttpClient(HttpClient parent)
{
var googleHttpClient = new HttpClientFactory().CreateHttpClient(new CreateHttpClientArgs {GZipEnabled = true, ApplicationName = "FarmMaps"});
googleHttpClient.BaseAddress = parent.BaseAddress;
googleHttpClient.DefaultRequestHeaders.Add("Accept", MediaTypeNames.Application.Json);
var authHeader = parent.DefaultRequestHeaders.Authorization;
googleHttpClient.DefaultRequestHeaders.Authorization = new AuthenticationHeaderValue(authHeader.Scheme, authHeader.Parameter);
return googleHttpClient;
}
}
}

160
FarmmapsApi/Services/FarmmapsUploader.cs Normal file
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@ -0,0 +1,160 @@
using System;
using System.Collections;
using System.IO;
using System.Net.Http;
using System.Net.Mime;
using System.Text;
using System.Threading;
using System.Threading.Tasks;
using FarmmapsApi.Models;
using Google.Apis.Http;
using Google.Apis.Json;
using Google.Apis.Requests;
using Google.Apis.Upload;
using Google.Apis.Util;
using Newtonsoft.Json;
namespace FarmmapsApi.Services
{
public class FarmmapsUploader : ResumableUpload
{
/// <summary>Payload description headers, describing the content itself.</summary>
private const string PayloadContentTypeHeader = "X-Upload-Content-Type";
/// <summary>Payload description headers, describing the content itself.</summary>
private const string PayloadContentLengthHeader = "X-Upload-Content-Length";
private const int UnknownSize = -1;
/// <summary>Gets or sets the service.</summary>
private HttpClient HttpClient { get; }
/// <summary>
/// Gets or sets the path of the method (combined with
/// <see cref="Google.Apis.Services.IClientService.BaseUri"/>) to produce
/// absolute Uri.
/// </summary>
private string Path { get; }
/// <summary>Gets or sets the HTTP method of this upload (used to initialize the upload).</summary>
private string HttpMethod { get; }
/// <summary>Gets or sets the stream's Content-Type.</summary>
private string ContentType { get; }
/// <summary>Gets or sets the body of this request.</summary>
private FileRequest Body { get; }
private long _streamLength;
/// <summary>
/// Create a resumable upload instance with the required parameters.
/// </summary>
/// <param name="contentStream">The stream containing the content to upload.</param>
/// <remarks>
/// Caller is responsible for maintaining the <paramref name="contentStream"/> open until the upload is
/// completed.
/// Caller is responsible for closing the <paramref name="contentStream"/>.
/// </remarks>
public FarmmapsUploader(ConfigurableHttpClient httpClient, Stream contentStream, FileRequest body, string contentType)
: base(contentStream,
new ResumableUploadOptions
{
HttpClient = httpClient,
Serializer = new NewtonsoftJsonSerializer(),
ServiceName = "FarmMaps"
})
{
httpClient.ThrowIfNull(nameof(httpClient));
contentStream.ThrowIfNull(nameof(contentStream));
_streamLength = ContentStream.CanSeek ? ContentStream.Length : UnknownSize;
Body = body;
Path = "api/v1/file";
HttpClient = httpClient;
HttpMethod = HttpConsts.Post;
ContentType = contentType;
}
/// <inheritdoc/>
public override async Task<Uri> InitiateSessionAsync(CancellationToken cancellationToken = default)
{
HttpRequestMessage request = CreateInitializeRequest();
Options?.ModifySessionInitiationRequest?.Invoke(request);
var response = await HttpClient.SendAsync(request, cancellationToken).ConfigureAwait(false);
if (!response.IsSuccessStatusCode)
{
throw await ExceptionForResponseAsync(response).ConfigureAwait(false);
}
return response.Headers.Location;
}
/// <summary>Creates a request to initialize a request.</summary>
private HttpRequestMessage CreateInitializeRequest()
{
var baseAddres = HttpClient.BaseAddress;
var uri = new Uri($"{baseAddres.Scheme}://{baseAddres.Host}:{baseAddres.Port}");
var builder = new RequestBuilder()
{
BaseUri = uri,
Path = Path,
Method = HttpMethod,
};
SetAllPropertyValues(builder);
HttpRequestMessage request = builder.CreateRequest();
if (ContentType != null)
{
request.Headers.Add(PayloadContentTypeHeader, ContentType);
}
// if the length is unknown at the time of this request, omit "X-Upload-Content-Length" header
if (ContentStream.CanSeek)
{
request.Headers.Add(PayloadContentLengthHeader, _streamLength.ToString());
}
var jsonText = JsonConvert.SerializeObject(Body);
request.Content = new StringContent(jsonText, Encoding.UTF8, MediaTypeNames.Application.Json);
return request;
}
/// <summary>
/// Reflectively enumerate the properties of this object looking for all properties containing the
/// RequestParameterAttribute and copy their values into the request builder.
/// </summary>
private void SetAllPropertyValues(RequestBuilder requestBuilder)
{
Type myType = this.GetType();
var properties = myType.GetProperties();
foreach (var property in properties)
{
var attribute = property.GetCustomAttribute<RequestParameterAttribute>();
if (attribute != null)
{
string name = attribute.Name ?? property.Name.ToLower();
object value = property.GetValue(this, null);
if (value != null)
{
if (!(value is string) && value is IEnumerable valueAsEnumerable)
{
foreach (var elem in valueAsEnumerable)
{
requestBuilder.AddParameter(attribute.Type, name, Utilities.ConvertToString(elem));
}
}
else
{
// Otherwise just convert it to a string.
requestBuilder.AddParameter(attribute.Type, name, Utilities.ConvertToString(value));
}
}
}
}
}
}
}

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FarmmapsApiSamples/Data/Belgie.zip Normal file
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FarmmapsApiSamples/Data/Scan_1_20190605.zip Normal file
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3
FarmmapsApiSamples/FarmmapsApiSamples.csproj
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@ -9,6 +9,9 @@
<None Update="appsettings.json">
<CopyToOutputDirectory>Always</CopyToOutputDirectory>
</None>
<None Update="Data\**\*">
<CopyToOutputDirectory>Always</CopyToOutputDirectory>
</None>
</ItemGroup>
<ItemGroup>

100
FarmmapsApiSamples/NbsApp.cs
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@ -1,8 +1,11 @@
using System;
using System.Globalization;
using System.IO;
using System.Linq;
using System.Threading.Tasks;
using FarmmapsApi.Models;
using FarmmapsApi.Services;
using Google.Apis.Upload;
using Microsoft.Extensions.Logging;
using Newtonsoft.Json.Linq;
using static FarmmapsApi.Extensions;
@ -12,6 +15,8 @@ namespace FarmmapsApiSamples
public class NbsApp : IApp
{
private const string USERINPUT_ITEMTYPE = "vnd.farmmaps.itemtype.user.input";
private const string GEOTIFF_ITEMTYPE = "vnd.farmmaps.itemtype.geotiff";
private const string CROPFIELD_ITEMTYPE = "vnd.farmmaps.itemtype.cropfield";
private const string VRANBS_TASK = "vnd.farmmaps.task.vranbs";
private readonly ILogger<NbsApp> _logger;
@ -41,14 +46,33 @@ namespace FarmmapsApiSamples
_logger.LogInformation("Authenticated client credentials");
var roots = await _farmmapsApiService.GetCurrentUserRootsAsync();
var myDriveRoot = roots.SingleOrDefault(r => r.Name == "My drive");
if (myDriveRoot != null)
// upload data to Uploaded
var uploadedRoot = roots.SingleOrDefault(r => r.Name == "Uploaded");
if (uploadedRoot != null)
{
var cropfieldItem = await GetOrCreateCropfieldItem(myDriveRoot.Code);
var targetN = await CalculateTargetN(cropfieldItem, 60);
await _farmmapsApiService.UploadFile(Path.Combine("Data", "Scan_1_20190605.zip"), uploadedRoot.Code,
progress =>
{
_logger.LogInformation($"Status: {progress.Status} - BytesSent: {progress.BytesSent}");
if(progress.Status == UploadStatus.Failed)
_logger.LogError($"Uploading failed {progress.Exception.Message}");
});
_logger.LogInformation($"TargetN: {targetN}");
// need to transform shape data to geotiff
var myDriveRoot = roots.SingleOrDefault(r => r.Name == "My drive");
if (myDriveRoot != null)
{
var cropfieldItem = await GetOrCreateCropfieldItem(myDriveRoot.Code);
_logger.LogInformation($"Calculating targetN with targetYield: {60}");
var targetN = await CalculateTargetN(cropfieldItem, 60);
_logger.LogInformation($"TargetN: {targetN}");
_logger.LogInformation("Calculating nitrogen map");
// var nitrogenMapItem = CalculateNitrogenMap(cropfieldItem,, targetN);
}
}
}
catch (Exception ex)
@ -60,7 +84,7 @@ namespace FarmmapsApiSamples
private async Task<Item> GetOrCreateCropfieldItem(string parentItemCode)
{
var cropfieldItems = await
_farmmapsApiService.GetItemChildrenAsync(parentItemCode, "vnd.farmmaps.itemtype.cropfield");
_farmmapsApiService.GetItemChildrenAsync(parentItemCode,CROPFIELD_ITEMTYPE);
if (cropfieldItems.Count > 0)
return cropfieldItems[0];
@ -70,18 +94,24 @@ namespace FarmmapsApiSamples
{
ParentCode = parentItemCode,
ItemType = "vnd.farmmaps.itemtype.cropfield",
Name = "cropfield for VRA",
Name = "Cropfield for VRA",
DataDate = currentYear,
DataEndDate = currentYear.AddYears(1),
Data = JObject.FromObject(new
{startDate = currentYear, endDate = currentYear.AddYears(1)}),
{startDate = currentYear, endDate = currentYear.AddMonths(3)}),
Geometry = JObject.Parse(
@"{""type"":""Polygon"",""coordinates"":[[[6.09942873984307,53.070025028087],[6.09992507404607,53.0705617890585],[6.10036959220086,53.0710679529031],[6.10065149010421,53.0714062774307],[6.10087493644271,53.0716712354474],[6.10091082982487,53.0716936039203],[6.10165087441291,53.0712041549161],[6.10204994718318,53.0709349338005],[6.10263143118855,53.0705789370018],[6.10311578125011,53.0702657538294],[6.10331686552072,53.0701314102389],[6.103326530575,53.070119463569],[6.10309137950343,53.0699829669055],[6.10184241586523,53.0692902201371],[6.10168497998891,53.0691984306747],[6.10092987659869,53.0694894453514],[6.09942873984307,53.070025028087]]]}")
@"{ ""type"": ""Polygon"", ""coordinates"": [ [ [ 3.40843828875524, 50.638966444680605 ], [ 3.408953272886064, 50.639197789621612 ], [ 3.409242951459603, 50.639469958681836 ], [ 3.409328782148028, 50.639612846807708 ], [ 3.409457528180712, 50.639789755314411 ], [ 3.409639918393741, 50.640014292074966 ], [ 3.409833037442765, 50.640211611372706 ], [ 3.410069071836049, 50.640395321698435 ], [ 3.410380208081761, 50.640572227259661 ], [ 3.410605513638958, 50.640715112034222 ], [ 3.411925160474145, 50.641177783561204 ], [ 3.411935889310142, 50.640728720085136 ], [ 3.412590348309737, 50.63948356709389 ], [ 3.413244807309242, 50.638224772339846 ], [ 3.413400375432099, 50.637901562841307 ], [ 3.413539850300779, 50.637449065809889 ], [ 3.413475477284437, 50.637418445552932 ], [ 3.40999396998362, 50.637449065810451 ], [ 3.409940325803365, 50.638102293212661 ], [ 3.409575545377398, 50.638483338338325 ], [ 3.409060561246574, 50.638707881340494 ], [ 3.40843828875524, 50.638966444680605 ] ] ] }")
};
return await _farmmapsApiService.CreateItemAsync(cropfieldItemRequest);
}
/// <summary>
/// Calculates TargetN, makes the assumption the cropfield and user.input(targetn) item have the same parent
/// </summary>
/// <param name="cropfieldItem">The cropfield to base the calculations on</param>
/// <param name="targetYield">The target yield input for the TargetN calculation</param>
/// <returns>The TargetN</returns>
private async Task<double> CalculateTargetN(Item cropfieldItem, int targetYield)
{
var targetNItems = await
@ -99,8 +129,6 @@ namespace FarmmapsApiSamples
targetNItem = targetNItems[0];
}
_logger.LogInformation($"Calculating targetN with targetYield: {targetYield}");
var nbsTargetNRequest = new TaskRequest {TaskType = VRANBS_TASK};
nbsTargetNRequest.attributes["operation"] = "targetn";
nbsTargetNRequest.attributes["inputCode"] = targetNItem.Code;
@ -111,12 +139,18 @@ namespace FarmmapsApiSamples
await PollTask(TimeSpan.FromSeconds(3), async (tokenSource) =>
{
var itemTask = await _farmmapsApiService.GetTaskStatusAsync(cropfieldItem.Code, itemTaskCode);
if (itemTask.State != ItemTaskState.Processing && itemTask.State != ItemTaskState.Scheduled)
var itemTaskStatus = await _farmmapsApiService.GetTaskStatusAsync(cropfieldItem.Code, itemTaskCode);
if (itemTaskStatus.State != ItemTaskState.Processing && itemTaskStatus.State != ItemTaskState.Scheduled)
tokenSource.Cancel();
});
var itemTask = await _farmmapsApiService.GetTaskStatusAsync(cropfieldItem.Code, itemTaskCode);
if(itemTask.State == ItemTaskState.Error)
{
_logger.LogError($"Something went wrong with task execution: {itemTask.Message}");
return 0;
}
var item = await _farmmapsApiService.GetItemAsync(targetNItem.Code);
if (item.Data.ContainsKey("TargetN"))
return item.Data["TargetN"].Value<double>();
@ -124,6 +158,44 @@ namespace FarmmapsApiSamples
return 0;
}
private async Task<Item> CalculateNitrogenMap(Item cropfieldItem, Item inputItem, double targetN)
{
var nbsNitrogenRequest = new TaskRequest {TaskType = VRANBS_TASK};
nbsNitrogenRequest.attributes["operation"] = "nitrogen";
nbsNitrogenRequest.attributes["inputCode"] = inputItem.Code;
nbsNitrogenRequest.attributes["inputType"] = "irmi";
nbsNitrogenRequest.attributes["targetN"] = targetN.ToString(CultureInfo.InvariantCulture);
string itemTaskCode = await _farmmapsApiService.QueueTaskAsync(cropfieldItem.Code, nbsNitrogenRequest);
await PollTask(TimeSpan.FromSeconds(5), async (tokenSource) =>
{
var itemTaskStatus = await _farmmapsApiService.GetTaskStatusAsync(cropfieldItem.Code, itemTaskCode);
if (itemTaskStatus.State != ItemTaskState.Processing && itemTaskStatus.State != ItemTaskState.Scheduled)
tokenSource.Cancel();
});
var itemTask = await _farmmapsApiService.GetTaskStatusAsync(cropfieldItem.Code, itemTaskCode);
if(itemTask.State == ItemTaskState.Error)
{
_logger.LogError($"Something went wrong with task execution: {itemTask.Message}");
return null;
}
var geotiffItems = await
_farmmapsApiService.GetItemChildrenAsync(cropfieldItem.Code, GEOTIFF_ITEMTYPE);
// how to uniquely know which item is really created!?
var nitrogenItem = geotiffItems.SingleOrDefault(i => i.Name.Contains("nitrogen"));
if (nitrogenItem == null)
{
_logger.LogError("Could not find the nitrogen geotiff child item under cropfield");
return null;
}
return nitrogenItem;
}
private ItemRequest CreateTargetNItemRequest(string parentItemCode)
{
return new ItemRequest()

3
FarmmapsApiSamples/appsettings.json
View File

@ -1,6 +1,7 @@
{
"Authority": "https://accounts.farmmaps.awtest.nl/",
"Endpoint": "https://farmmaps.awtest.nl/api/v1/",
"Endpoint": "http://localhost:8083",
"BasePath": "api/v1",
"DiscoveryEndpointUrl": "https://accounts.farmmaps.awtest.nl/.well-known/openid-configuration",
"RedirectUri": "http://example.nl/api",
"ClientId": "",