I'm trying to use Azure.Maps.Search to give me a polygon for a result. For example, if I search for "Birmingham" I would like a result for that municipality with a collection of geopoints defining the boundary.
Is this possible?
var credential = new AzureKeyCredential("............");
var client = new MapsSearchClient(credential);
Response<SearchAddressResult> searchResult = await client.SearchAddressAsync(
query: "Birmingham",
options: new SearchAddressOptions
{
ExtendedPostalCodesFor=new SearchIndex[] { SearchIndex.PointAddresses },
CountryFilter = new string[] { "GB" },
Top = 1,
EntityType = GeographicEntity.Municipality
});
Yes, this is possible. The search address API will contain a DataSources.Geometries.ID value in the results that is the ID of the unique boundary for that result. You can take this ID and pass it into the GetPolygonsAsync API in the Azure.Maps.Search Nuget package.
using Azure;
using Azure.Maps.Search;
using Azure.Maps.Search.Models;
namespace AzureMapsTest
{
internal class Program
{
private const string MapsApiKey = "...........";
static async Task Main(string[] args)
{
var credential = new AzureKeyCredential(MapsApiKey);
var client = new MapsSearchClient(credential);
SearchAddressOptions singleSearchResultOptions = new SearchAddressOptions { Top = 1 };
Response<SearchAddressResult> searchResult =
await client.SearchAddressAsync(
"Ealing, London, England",
singleSearchResultOptions);
Response<PolygonResult> polygons =
await client.GetPolygonsAsync(new string[] { searchResult.Value.Results[0].DataSources.Geometry.Id });
Console.WriteLine(System.Text.Json.JsonSerializer.Serialize(polygons.Value.Polygons));
}
}
}
Related
I have been able to open the default map application and display a single location:
var location = new Location(latitude, longitude);
var options = new MapLaunchOptions { Name = locationName };
try
{
await Map.Default.OpenAsync(location, options);
}
catch (Exception ex)
{
// No map application available to open
}
Wondering if the ability to open with multiple locations pinned exists?
You will first need to load in the location data, whether that is from an embedded resource or API call. Once you have the lat/lng data pulled in (mine is in a List) you can go ahead and add them. You will need map.Layers.Add(CreatePointLayer()); to call the code below:
private MemoryLayer CreatePointLayer()
{
return new MemoryLayer
{
Name = "Points",
IsMapInfoLayer = true,
Features = GetLocsFromList(),
Style = SymbolStyles.CreatePinStyle()
};
}
private IEnumerable<IFeature> GetLocsFromList()
{
var locs = Locs; //<- Locs is the List<Locations>
return locs.Select(l => {
var feature = new PointFeature(SphericalMercator.FromLonLat(l.lng, l.lat).ToMPoint());
return feature;
});
}
I have a group called "Building Residents". In that group I have 2 groups for every apartment:
- Apt1a_Renters
- Apt1a_Owners
- Apt2a_Renters
- Apt2a_Owners
etc, etc...
A Person can be in the Apt2a_Owners group but also in the Apt1a_Renters group.
I want to query all members of the "Building Residents" group for users but when I do that, I just get back the groups inside of it.
Is there any way, using a single query, to list all the building residents without bringing back duplicates (same person in apt2a_owners and apt1a_renters)?
The Azure Graph REST only can get the direct members from one group. To get the member users recursively, we need to implement it ourselves. Here is a code sample wiring with C# using the Azure AD Graph library for your reference:
public void testGetMembersRecursively()
{
var accessToken="";
var tenantId="";
var groupName="";
var client = GraphHelper.CreateGraphClient(accessToken,tenantId);
var group = (Group)client.Groups.ExecuteAsync().Result.CurrentPage.First(g => g.DisplayName ==groupName);
var groupFetcher = client.Groups.GetByObjectId(group.ObjectId);
List<string> users = new List<string>();
GetMembersRecursively(groupFetcher, users);
Console.WriteLine(String.Join("\n", users.Distinct<string>().ToArray()));
}
public void GetMembersRecursively(Microsoft.Azure.ActiveDirectory.GraphClient.IGroupFetcher groupFetcher, List<string> users)
{
var membersResoult = groupFetcher.Members.ExecuteAsync().Result;
AddMember( membersResoult, users);
while (membersResoult.MorePagesAvailable)
{
membersResoult = membersResoult.GetNextPageAsync().Result;
AddMember(membersResoult, users);
}
}
public void AddMember( IPagedCollection<IDirectoryObject> membersResoult, List<string> users)
{
var members = membersResoult.CurrentPage;
foreach (var obj in members)
{
var _user = obj as Microsoft.Azure.ActiveDirectory.GraphClient.User;
if (_user != null)
users.Add(_user.DisplayName);
else
{
var groupMember = obj as Microsoft.Azure.ActiveDirectory.GraphClient.Group;
if (groupMember != null)
{
GetMembersRecursively(GetGroupById(groupMember.ObjectId), users);
}
}
}
}
GraphHelper class:
class GraphHelper
{
public static ActiveDirectoryClient CreateGraphClient(string accessToken, string tenantId)
{
string graphResourceId = "https://graph.windows.net";
Uri servicePointUri = new Uri(graphResourceId);
Uri serviceRoot = new Uri(servicePointUri, tenantId);
ActiveDirectoryClient activeDirectoryClient = new ActiveDirectoryClient(serviceRoot, async () => await Task.FromResult(accessToken));
return activeDirectoryClient;
}
}
With Amazon native .net lib, batchget is like this
var batch = context.CreateBatch<MyClass>();
batch.AddKey("hashkey1");
batch.AddKey("hashkey2");
batch.AddKey("hashkey3");
batch.Execute();
var result = batch.results;
Now I'm testing to use servicestack.aws, however I couldn't find how to do it. I've tried the following, both failed.
//1st try
var q1 = db.FromQueryIndex<MyClass>(x => x.room_id == "hashkey1" || x.room_id == "hashkey2"||x.room_id == "hashkey3");
var result = db.Query(q1);
//2nd try
var result = db.GetItems<MyClass>(new string[]{"hashkey1","hashkey2","hashkey3"});
In both cases, it threw an exception that says
Additional information: Invalid operator used in KeyConditionExpression: OR
Please help me. Thanks!
Using GetItems should work as seen with this Live Example on Gistlyn:
public class MyClass
{
public string Id { get; set; }
public string Content { get; set; }
}
db.RegisterTable<MyClass>();
db.DeleteTable<MyClass>(); // Delete existing MyClass Table (if any)
db.InitSchema(); // Creates MyClass DynamoDB Table
var items = 5.Times(i => new MyClass { Id = $"hashkey{i}", Content = $"Content {i}" });
db.PutItems(items);
var dbItems = db.GetItems<MyClass>(new[]{ "hashkey1","hashkey2","hashkey3" });
"Saved Items: {0}".Print(dbItems.Dump());
If your Item has both a Hash and a Range Key you'll need to use the GetItems<T>(IEnumerable<DynamoId> ids) API, e.g:
var dbItems = db.GetItems<MyClass>(new[]{
new DynamoId("hashkey1","rangekey1"),
new DynamoId("hashkey2","rangekey3"),
new DynamoId("hashkey3","rangekey4"),
});
Query all Items with same HashKey
If you want to fetch all items with the same HashKey you need to create a DynamoDB Query as seen with this Live Gistlyn Example:
var items = 5.Times(i => new MyClass {
Id = $"hashkey{i%2}", RangeKey = $"rangekey{i}", Content = $"Content {i}" });
db.PutItems(items);
var rows = db.FromQuery<MyClass>(x => x.Id == "hashkey1").Exec().ToArray();
rows.PrintDump();
I want to post some request values alongside the multipart-formdata file contents. In the old API you could use PostFileWithRequest:
[Test]
public void Can_POST_upload_file_using_ServiceClient_with_request()
{
IServiceClient client = new JsonServiceClient(ListeningOn);
var uploadFile = new FileInfo("~/TestExistingDir/upload.html".MapProjectPath());
var request = new FileUpload{CustomerId = 123, CustomerName = "Foo"};
var response = client.PostFileWithRequest<FileUploadResponse>(ListeningOn + "/fileuploads", uploadFile, request);
var expectedContents = new StreamReader(uploadFile.OpenRead()).ReadToEnd();
Assert.That(response.FileName, Is.EqualTo(uploadFile.Name));
Assert.That(response.ContentLength, Is.EqualTo(uploadFile.Length));
Assert.That(response.Contents, Is.EqualTo(expectedContents));
Assert.That(response.CustomerName, Is.EqualTo("Foo"));
Assert.That(response.CustomerId, Is.EqualTo(123));
}
I can't find any such method in the new API, nor any overrides on client.Post() which suggest that this is still possible. Does anyone know if this is a feature that was dropped?
Update
As #Mythz points out, the feature wasn't dropped. I had made the mistake of not casting the client:
private IRestClient CreateRestClient()
{
return new JsonServiceClient(WebServiceHostUrl);
}
[Test]
public void Can_WebRequest_POST_upload_binary_file_to_save_new_file()
{
var restClient = (JsonServiceClient)CreateRestClient(); // this cast was missing
var fileToUpload = new FileInfo(#"D:/test/test.avi");
var beforeHash = this.Hash(fileToUpload);
var response = restClient.PostFileWithRequest<FilesResponse>("files/UploadedFiles/", fileToUpload, new TestRequest() { Echo = "Test"});
var uploadedFile = new FileInfo(FilesRootDir + "UploadedFiles/test.avi");
var afterHash = this.Hash(uploadedFile);
Assert.That(beforeHas, Is.EqualTo(afterHash));
}
private string Hash(FileInfo file)
{
using (var md5 = MD5.Create())
{
using (var stream = file.OpenRead())
{
var bytes = md5.ComputeHash(stream);
return BitConverter.ToString(md5.ComputeHash(stream)).Replace("-", "").ToLower();
}
}
}
None of the old API was removed from the C# Service Clients, only new API's were added.
The way you process an uploaded file inside a service also hasn't changed.
I have been working on making a Search using Solrnet which is working the way I want to. But I just would like some advice on the best way to pass my query parameters from my web page into Solrnet.
What I would ideally like to do is pass my query string parameters similar to how this site does it: http://www.watchfinder.co.uk/SearchResults.aspx?q=%3a&f_brand=Rolex&f_bracelets=Steel&f_movements=Automatic.
As you can see from the sites query string it looks like it is being passed into SolrNet directly. Here is I am doing it at the moment (facet query segment):
public class SoftwareSalesSearcher
{
public static SoftwareSalesSearchResults Facet()
{
ISolrOperations solr = SolrOperationsCache.GetSolrOperations(ConfigurationManager.AppSettings["SolrUrl"]);
//Iterate through querystring to get the required fields to query Solrnet
List queryCollection = new List();
foreach (string key in HttpContext.Current.Request.QueryString.Keys)
{
queryCollection.Add(new SolrQuery(String.Format("{0}:{1}", key, HttpContext.Current.Request.QueryString[key])));
}
var lessThan25 = new SolrQueryByRange("SoftwareSales", 0m, 25m);
var moreThan25 = new SolrQueryByRange("SoftwareSales", 26m, 50m);
var moreThan50 = new SolrQueryByRange("SoftwareSales", 51m, 75m);
var moreThan75 = new SolrQueryByRange("SoftwareSales", 76m, 100m);
QueryOptions options = new QueryOptions
{
Rows = 0,
Facet = new FacetParameters {
Queries = new[] { new SolrFacetQuery(lessThan25), new SolrFacetQuery(moreThan25), new SolrFacetQuery(moreThan50), new SolrFacetQuery(moreThan75) }
},
FilterQueries = queryCollection.ToArray()
};
var results = solr.Query(SolrQuery.All, options);
var searchResults = new SoftwareSalesSearchResults();
List softwareSalesInformation = new List();
foreach (var facet in results.FacetQueries)
{
if (facet.Value != 0)
{
SoftwareSalesFacetDetail salesItem = new SoftwareSalesFacetDetail();
salesItem.Price = facet.Key;
salesItem.Value = facet.Value;
softwareSalesInformation.Add(salesItem);
}
}
searchResults.Results = softwareSalesInformation;
searchResults.TotalResults = results.NumFound;
searchResults.QueryTime = results.Header.QTime;
return searchResults;
}
}
At the moment I can't seem to see how I can query all my results from my current code by add the following querystring: q=:.
I'm not sure what you mean by "parameters being passed into SolrNet directly". It seems that watchfinder is using some variant of the model binder included in the SolrNet sample app.
Also take a look at the controller in the sample app to see how the SolrNet parameters are built.