I am wondering if Lambda expression could be passed to Windows workflow Code Activity as a parameter?
I am trying to query ldap for user objects based on a lambda expression which would be passed to a Windows workflow Code Activity as a parameter.
A lamda expression is just a reference, pass it as you would any other data.
class Program
{
static void Main(string[] args)
{
var workflow = new ExecuteFunc<int>();
var inputs = new Dictionary<string, object>();
inputs["Func"] = new Func<int, int>(maxValue =>
{
var rnd = new Random(Environment.TickCount);
return rnd.Next(maxValue);
});
inputs["MaxValue"] = 100;
WorkflowInvoker.Invoke(workflow, inputs);
}
}
public class ExecuteFunc<T> : CodeActivity<T>
{
public InArgument<int> MaxValue { get; set; }
public InArgument<Func<int, T>> Func { get; set; }
protected override T Execute(CodeActivityContext context)
{
var func = Func.Get(context);
var maxValue = MaxValue.Get(context);
var result = func(maxValue);
Console.WriteLine(result);
return result;
}
}
Related
We have an interface and a base class with multiple derived types.
public interface IEvent
{
[JsonProperty("id")]
public string Id { get; set; }
string Type { get; }
}
public abstract class EventBase: IEvent
{
public string Id { get; set; }
public abstract string Type { get; }
}
public class UserCreated : EventBase
{
public override string Type { get; } = typeof(UserCreated).AssemblyQualifiedName;
}
public class UserUpdated : EventBase
{
public override string Type { get; } = typeof(UserUpdated).AssemblyQualifiedName;
}
We are storing these events of different derived types in the same container in Cosmos DB using v3 of .Net SDK Microsoft.Azure.Cosmos. We then want to read all the events and have them deserialized to the correct type.
public class CosmosDbTests
{
[Fact]
public async Task TestFetchingDerivedTypes()
{
var endpoint = "";
var authKey = "";
var databaseId ="";
var containerId="";
var client = new CosmosClient(endpoint, authKey);
var container = client.GetContainer(databaseId, containerId);
await container.CreateItemAsync(new UserCreated{ Id = Guid.NewGuid().ToString() });
await container.CreateItemAsync(new UserUpdated{ Id = Guid.NewGuid().ToString() });
var queryable = container.GetItemLinqQueryable<IEvent>();
var query = queryable.ToFeedIterator();
var list = new List<IEvent>();
while (query.HasMoreResults)
{
list.AddRange(await query.ReadNextAsync());
}
Assert.NotEmpty(list);
}
}
Doesn't seem to be any option to tell GetItemLinqQueryable how to handle types. Is there any other method or approach to support multiple derived types in one query?
It's ok to put the events in some kind of wrapper entity if that would help, but they aren't allowed to be stored as an serialized sting inside a property.
The comment from Stephen Clearly pointed me in the right direction and with the help of this blog https://thomaslevesque.com/2019/10/15/handling-type-hierarchies-in-cosmos-db-part-2/ I ended up with a solution similar to the following example were we have a custom CosmosSerializer that uses a custom JsonConverter that reads the Type property.
public interface IEvent
{
[JsonProperty("id")]
public string Id { get; set; }
[JsonProperty("$type")]
string Type { get; }
}
public abstract class EventBase: IEvent
{
public string Id { get; set; }
public string Type => GetType().AssemblyQualifiedName;
}
public class UserCreated : EventBase
{
}
public class UserUpdated : EventBase
{
}
EventJsonConverter reads the Type property.
public class EventJsonConverter : JsonConverter
{
// This converter handles only deserialization, not serialization.
public override bool CanRead => true;
public override bool CanWrite => false;
public override bool CanConvert(Type objectType)
{
// Only if the target type is the abstract base class
return objectType == typeof(IEvent);
}
public override object ReadJson(JsonReader reader, Type objectType, object existingValue, JsonSerializer serializer)
{
// First, just read the JSON as a JObject
var obj = JObject.Load(reader);
// Then look at the $type property:
var typeName = obj["$type"]?.Value<string>();
return typeName == null ? null : obj.ToObject(Type.GetType(typeName), serializer);
}
public override void WriteJson(JsonWriter writer, object value, JsonSerializer serializer)
{
throw new NotSupportedException("This converter handles only deserialization, not serialization.");
}
}
The NewtonsoftJsonCosmosSerializer takes a JsonSerializerSettings that it uses for serialization.
public class NewtonsoftJsonCosmosSerializer : CosmosSerializer
{
private static readonly Encoding DefaultEncoding = new UTF8Encoding(false, true);
private readonly JsonSerializer _serializer;
public NewtonsoftJsonCosmosSerializer(JsonSerializerSettings settings)
{
_serializer = JsonSerializer.Create(settings);
}
public override T FromStream<T>(Stream stream)
{
if (typeof(Stream).IsAssignableFrom(typeof(T)))
{
return (T)(object)stream;
}
using var sr = new StreamReader(stream);
using var jsonTextReader = new JsonTextReader(sr);
return _serializer.Deserialize<T>(jsonTextReader);
}
public override Stream ToStream<T>(T input)
{
var streamPayload = new MemoryStream();
using var streamWriter = new StreamWriter(streamPayload, encoding: DefaultEncoding, bufferSize: 1024, leaveOpen: true);
using JsonWriter writer = new JsonTextWriter(streamWriter);
writer.Formatting = _serializer.Formatting;
_serializer.Serialize(writer, input);
writer.Flush();
streamWriter.Flush();
streamPayload.Position = 0;
return streamPayload;
}
}
The CosmosClient is now created with our own NewtonsoftJsonCosmosSerializer and EventJsonConverter.
public class CosmosDbTests
{
[Fact]
public async Task TestFetchingDerivedTypes()
{
var endpoint = "";
var authKey = "";
var databaseId ="";
var containerId="";
var client = new CosmosClient(endpoint, authKey, new CosmosClientOptions
{
Serializer = new NewtonsoftJsonCosmosSerializer(new JsonSerializerSettings
{
Converters = { new EventJsonConverter() }
})
});
var container = client.GetContainer(databaseId, containerId);
await container.CreateItemAsync(new UserCreated{ Id = Guid.NewGuid().ToString() });
await container.CreateItemAsync(new UserUpdated{ Id = Guid.NewGuid().ToString() });
var queryable = container.GetItemLinqQueryable<IEvent>();
var query = queryable.ToFeedIterator();
var list = new List<IEvent>();
while (query.HasMoreResults)
{
list.AddRange(await query.ReadNextAsync());
}
Assert.NotEmpty(list);
}
}
I'm having trouble running a query against a secondary index, getting an exception:
Ex getting dynamodb scan: java.lang.IllegalArgumentException: Attempt to execute an operation that requires a secondary index without defining the index attributes in the table metadata. Index name: category-timestamp-index
Can someone guide me on how I'm doing this wrong?
My table is idIT_RSS_Sources and I've created an index category-timestamp-index.
screenshot attached of index
My code is:
DynamoDbEnhancedClient enhancedClient = getEnhancedDBClient(region);
// Create a DynamoDbTable object
logger.debug("getting RSS Source category-timestamp-index");
//this throws the exception
DynamoDbIndex<RSS_Source> catIndex =
enhancedClient.table("idIT_RSS_Sources",
TableSchema.fromBean(RSS_Source.class))
.index("category-timestamp-index");
logger.debug("building query attributes");
AttributeValue att = AttributeValue.builder()
.s(theCategory)
.build();
Map<String, AttributeValue> expressionValues = new HashMap<>();
expressionValues.put(":value", att);
Expression expression = Expression.builder()
.expression("category = :value")
.expressionValues(expressionValues)
.build();
// Create a QueryConditional object that's used in the query operation
QueryConditional queryConditional = QueryConditional
.keyEqualTo(Key.builder().partitionValue(theCategory)
.build());
logger.debug("calling catIndex.query in getRSS...ForCategory");
Iterator<Page<RSS_Source>> dbFeedResults = (Iterator<Page<RSS_Source>>) catIndex.query(
QueryEnhancedRequest.builder()
.queryConditional(queryConditional)
.build());
solved, I was not using the proper annotation in my model class:
#DynamoDbSecondaryPartitionKey(indexNames = { "category-index" })
public String getCategory() { return category; }
public void setCategory(String category) { this.category = category; }
Assume you have a model named Issues.
package com.example.dynamodb;
import software.amazon.awssdk.enhanced.dynamodb.mapper.annotations.DynamoDbBean;
import software.amazon.awssdk.enhanced.dynamodb.mapper.annotations.DynamoDbPartitionKey;
import software.amazon.awssdk.enhanced.dynamodb.mapper.annotations.DynamoDbSecondaryPartitionKey;
import software.amazon.awssdk.enhanced.dynamodb.mapper.annotations.DynamoDbSortKey;
#DynamoDbBean
public class Issues {
private String issueId;
private String title;
private String createDate;
private String description;
private String dueDate;
private String status;
private String priority;
private String lastUpdateDate;
#DynamoDbPartitionKey
public String getId() {
return this.issueId;
}
public void setId(String id) {
this.issueId = id;
}
#DynamoDbSortKey
public String getTitle() {
return this.title;
}
public void setTitle(String title) {
this.title = title;
}
public void setLastUpdateDate(String lastUpdateDate) {
this.lastUpdateDate = lastUpdateDate;
}
public String getLastUpdateDate() {
return this.lastUpdateDate;
}
public void setPriority(String priority) {
this.priority = priority;
}
public String getPriority() {
return this.priority;
}
public void setStatus(String status) {
this.status = status;
}
public String getStatus() {
return this.status;
}
public void setDueDate(String dueDate) {
this.dueDate = dueDate;
}
#DynamoDbSecondaryPartitionKey(indexNames = { "dueDateIndex" })
public String getDueDate() {
return this.dueDate;
}
public String getDate() {
return this.createDate;
}
public void setDate(String date) {
this.createDate = date;
}
public String getDescription() {
return this.description;
}
public void setDescription(String description) {
this.description = description;
}
}
Notice the annotation on getDueDate.
#DynamoDbSecondaryPartitionKey(indexNames = { "dueDateIndex" })
public String getDueDate() {
return this.dueDate;
}
This is because the Issues table has a secondary index named dueDateIndex.
To query on this secondary index, you can use this code that uses the Amazon DynamoDB Java API V2:
public static void queryIndex(DynamoDbClient ddb, String tableName, String indexName) {
try {
// Create a DynamoDbEnhancedClient and use the DynamoDbClient object
DynamoDbEnhancedClient enhancedClient = DynamoDbEnhancedClient.builder()
.dynamoDbClient(ddb)
.build();
//Create a DynamoDbTable object based on Issues
DynamoDbTable<Issues> table = enhancedClient.table("Issues", TableSchema.fromBean(Issues.class));
String dateVal = "2013-11-19";
DynamoDbIndex<Issues> secIndex =
enhancedClient.table("Issues",
TableSchema.fromBean(Issues.class))
.index("dueDateIndex");
AttributeValue attVal = AttributeValue.builder()
.s(dateVal)
.build();
// Create a QueryConditional object that's used in the query operation
QueryConditional queryConditional = QueryConditional
.keyEqualTo(Key.builder().partitionValue(attVal)
.build());
// Get items in the Issues table
SdkIterable<Page<Issues>> results = secIndex.query(
QueryEnhancedRequest.builder()
.queryConditional(queryConditional)
.build());
AtomicInteger atomicInteger = new AtomicInteger();
atomicInteger.set(0);
results.forEach(page -> {
Issues issue = (Issues) page.items().get(atomicInteger.get());
System.out.println("The issue title is "+issue.getTitle());
atomicInteger.incrementAndGet();
});
} catch (DynamoDbException e) {
System.err.println(e.getMessage());
System.exit(1);
}
}
For what it's worth, if your Global Secondary Index has a sort key, you must annotate that field in the DynamoDB bean with:
#DynamoDbSecondarySortKey(indexNames = { "<indexName>" })
public String getFieldName() {
return fieldName;
}
My working code is as below:
sortKey-index = GSI in dynamo db
List<Flow> flows = new ArrayList<>();
DynamoDbIndex<Flow> flowBySortKey = table().index("sortKey-index");
// Create a QueryConditional object that's used in the query operation
QueryConditional queryConditional = QueryConditional
.keyEqualTo(Key.builder()
.partitionValue(sortKey)
.build());
SdkIterable<Page<Flow>> dbFeedResults = flowBySortKey.query(
QueryEnhancedRequest.builder()
.queryConditional(queryConditional)
.build());
dbFeedResults.forEach(flowPage -> {
flows.addAll(flowPage.items());
});
I am porting a PHP/CI API that uses $params = $this->uri->uri_to_assoc() so that it can accept GET requests with many combinations, such as:
https://server/properties/search/beds/3/page/1/sort/price_desc
https://server/properties/search/page/2/lat/34.1/lon/-119.1
https://server/properties/search
etc
With lots of code like:
$page = 1;
if (!empty($params['page'])) {
$page = (int)$params['page'];
}
The two ASP.NET Core 2.1 techniques I've tried both seem like a kludge so I would appreciate any guidance on a better solution:
1) Conventional routing with catchall:
app.UseMvc(routes => {
routes.MapRoute(
name: "default",
template: "{controller=Properties}/{action=Search}/{*params}"
);
});
But now I have to parse the params string for the key/value pairs and am not able to take advantage of model binding.
2) Attribute routing:
[HttpGet("properties/search")]
[HttpGet("properties/search/beds/{beds}")]
[HttpGet("properties/search/beds/{beds}/page/{page}")]
[HttpGet("properties/search/page/{page}/beds/{beds}")]
public IActionResult Search(int beds, double lat, double lon, int page = 1, int limit = 10) {
}
Obviously putting every combination of allowed search parameters and values is tedious.
Changing the signature of these endpoints is not an option.
FromPath value provider
What you are wanting is to bind a complex model to part of the url path. Unfortunately, ASP.NET Core does not have a built-in FromPath binder. Fortunately, though, we can build our own.
Here is an example FromPathValueProvider in GitHub that has the following result:
Basically, it is binding domain.com/controller/action/key/value/key/value/key/value. This is different than what either the FromRoute or the FromQuery value providers do.
Use the FromPath value provider
Create a route like this:
routes.MapRoute(
name: "properties-search",
template: "{controller=Properties}/{action=Search}/{*path}"
);
Add the [FromPath] attribute to your action:
public IActionResult Search([FromPath]BedsEtCetera model)
{
return Json(model);
}
And magically it will bind the *path to a complex model:
public class BedsEtCetera
{
public int Beds { get; set; }
public int Page { get; set; }
public string Sort { get; set; }
}
Create the FromPath value provider
Create a new attribute based on FromRoute.
[AttributeUsage(AttributeTargets.Parameter | AttributeTargets.Property,
AllowMultiple = false, Inherited = true)]
public class FromPath : Attribute, IBindingSourceMetadata, IModelNameProvider
{
/// <inheritdoc />
public BindingSource BindingSource => BindingSource.Custom;
/// <inheritdoc />
public string Name { get; set; }
}
Create a new IValueProviderFactory base on RouteValueProviderFactory.
public class PathValueProviderFactory : IValueProviderFactory
{
public Task CreateValueProviderAsync(ValueProviderFactoryContext context)
{
var provider = new PathValueProvider(
BindingSource.Custom,
context.ActionContext.RouteData.Values);
context.ValueProviders.Add(provider);
return Task.CompletedTask;
}
}
Create a new IValueProvider base on RouteValueProvider.
public class PathValueProvider : IValueProvider
{
public Dictionary<string, string> _values { get; }
public PathValueProvider(BindingSource bindingSource, RouteValueDictionary values)
{
if(!values.TryGetValue("path", out var path))
{
var msg = "Route value 'path' was not present in the route.";
throw new InvalidOperationException(msg);
}
_values = (path as string).ToDictionaryFromUriPath();
}
public bool ContainsPrefix(string prefix) => _values.ContainsKey(prefix);
public ValueProviderResult GetValue(string key)
{
key = key.ToLower(); // case insensitive model binding
if(!_values.TryGetValue(key, out var value)) {
return ValueProviderResult.None;
}
return new ValueProviderResult(value);
}
}
The PathValueProvider uses a ToDictionaryFromUriPath extension method.
public static class StringExtensions {
public static Dictionary<string, string> ToDictionaryFromUriPath(this string path) {
var parts = path.Split('/');
var dictionary = new Dictionary<string, string>();
for(var i = 0; i < parts.Length; i++)
{
if(i % 2 != 0) continue;
var key = parts[i].ToLower(); // case insensitive model binding
var value = parts[i + 1];
dictionary.Add(key, value);
}
return dictionary;
}
}
Wire things together in your Startup class.
public class Startup
{
public void ConfigureServices(IServiceCollection services)
{
services.AddMvc()
.AddMvcOptions(options =>
options.ValueProviderFactories.Add(new PathValueProviderFactory()));
}
public void Configure(IApplicationBuilder app, IHostingEnvironment env)
{
app.UseMvc(routes => {
routes.MapRoute(
name: "properties-search",
template: "{controller=Properties}/{action=Search}/{*path}"
);
});
}
}
Here is a working sample on GitHub.
Edit
My other answer is a better option.
General Idea
$params = $this->uri->uri_to_assoc() turns a URI into an associative array, which is basically a .NET Dictionary<TKey, TValue>. We can do something similar in ASP.NET Core. Lets say we have the following routes.
app.UseMvc(routes => {
routes.MapRoute(
name: "properties-search",
template: "{controller=Properties}/{action=Search}/{*params}"
);
});
Bind Uri Path to Dictionary
Action
public class PropertiesController : Controller
{
public IActionResult Search(string slug)
{
var dictionary = slug.ToDictionaryFromUriPath();
return Json(dictionary);
}
}
Extension Method
public static class UrlToAssocExtensions
{
public static Dictionary<string, string> ToDictionaryFromUriPath(this string path) {
var parts = path.Split('/');
var dictionary = new Dictionary<string, string>();
for(var i = 0; i < parts.Length; i++)
{
if(i % 2 != 0) continue;
var key = parts[i];
var value = parts[i + 1];
dictionary.Add(key, value);
}
return dictionary;
}
}
The result is an associative array based on the URI path.
{
"beds": "3",
"page": "1",
"sort": "price_desc"
}
But now I have to parse the params string for the key/value pairs and am not able to take advantage of model binding.
Bind Uri Path to Model
If you want model binding for this, then we need to go a step further.
Model
public class BedsEtCetera
{
public int Beds { get; set; }
public int Page { get; set; }
public string Sort { get; set; }
}
Action
public IActionResult Search(string slug)
{
BedsEtCetera model = slug.BindFromUriPath<BedsEtCetera>();
return Json(model);
}
Additional Extension Method
public static TResult BindFromUriPath<TResult>(this string path)
{
var dictionary = path.ToDictionaryFromUriPath();
var json = JsonConvert.SerializeObject(dictionary);
return JsonConvert.DeserializeObject<TResult>(json);
}
IMHO you are looking at this from the wrong perspective.
Create a model:
public class FiltersViewModel
{
public int Page { get; set; } = 0;
public int ItemsPerPage { get; set; } = 20;
public string SearchString { get; set; }
public string[] Platforms { get; set; }
}
API Endpoint:
[HttpGet]
public async Task<IActionResult> GetResults([FromRoute] ViewModels.FiltersViewModel filters)
{
// process the filters here
}
Result Object (dynamic)
public class ListViewModel
{
public object[] items;
public int totalCount = 0;
public int filteredCount = 0;
}
Why is it not possible to pass the arguments to CodeActivity via WorkflowInvoker's input dictionary, if the activities are within a Sequence? The WorkflowInvoker.Invoke(sequence, dict) method throws the following exception:
Additional information: The values provided for the root activity's arguments did not satisfy the root activity's requirements:
'Sequence': The following keys from the input dictionary do not map to arguments and must be removed: Arg. Please note that argument names are case sensitive.
class Program
{
static void Main(string[] args)
{
var sequence = new Sequence();
var start = new Start();
var end = new End();
sequence.Activities.Add(start);
sequence.Activities.Add(end);
var dict = new Dictionary();
dict["Arg"] = "Debug text.";
WorkflowInvoker.Invoke(sequence, dict);
}
}
public class Start : CodeActivity
{
public InArgument Arg { get; set; }
protected override void Execute(CodeActivityContext context)
{
Debug.WriteLine(Arg.Get(context));
}
}
public class End : CodeActivity
{
public InArgument Arg { get; set; }
protected override void Execute(CodeActivityContext context)
{
Debug.WriteLine(Arg.Get(context));
}
}
// ************** Second example with custom sequence *************************
class Program
{
static void Main(string[] args)
{
var seq = new MySequence();
seq.Activities.Add(new Last());
seq.Activities.Add(new First());
var dict = new Dictionary();
dict["Arg"] = "Text";
WorkflowInvoker.Invoke(seq, dict);
}
}
public class First : CodeActivity
{
public InArgument Arg { get; set; }
protected override void Execute(CodeActivityContext context)
{
var val = Arg.Get(context);
}
}
public class Last : CodeActivity
{
public InArgument Arg { get; set; }
protected override void Execute(CodeActivityContext context)
{
var val = Arg.Get(context);
}
}
public class MySequence : NativeActivity
{
public InArgument Arg { get; set; }
public Collection Activities = new Collection();
protected override void CacheMetadata(NativeActivityMetadata metadata)
{
base.CacheMetadata(metadata);
metadata.SetChildrenCollection(Activities);
}
protected override void Execute(NativeActivityContext context)
{
foreach (var activity in Activities)
context.ScheduleActivity(activity);
}
}
The code activities take their arguments from the container they are in not the input dictionary. The container needs to have an in argument matching the one in the dictionary.
Sequences don't accept arguments so you wrap them in an Activity.
An Activity constructed as below is a worklfow
public class MyCodeWorkflow : Activity
{
public InArgument<string> inMSG { get; set; }
public OutArgument<string> outMSG { get; set; }
public MyCodeWorkflow()
{
this.Implementation = () => new Sequence {
Activities =
{
new WriteLine
{
Text=new InArgument<string>((activityContext)=>this.inMSG.Get(activityContext))
},
new Assign<string>
{
To=new ArgumentReference<string>("outMSG"),
Value=new InArgument<string>
(
(activityContext)=>this.inMSG.Get(activityContext)
)
}
}
};
}
}
//host
static void Main(string[] args)
{
IDictionary<string, object> input = new Dictionary<string, object>();
input.Add("inMSG","hello");
IDictionary<string, object> output = new Dictionary<string, object>();
MyCodeWorkflow activity = new MyCodeWorkflow();
output = WorkflowInvoker.Invoke(activity,input);
Console.WriteLine(output["outMSG"]);
}
The code above was taken from http://xhinker.com/post/WF4Authoring-WF4-using-imperative-code%28II%29.aspx
I'm using ServiceStack / StructureMap / Moq. The service makes a call to Session, which is type ServiceStack.CacheAccess.ISession. For unit tests, I created a Mock object using Moq, and added it to the StructureMap configuration:
protected Mock<ISession> sessionMock = new Mock<ISession>();
ObjectFactory.Configure(
cfg =>
{
cfg.For<ISession>().Use(sessionMock.Object);
However, I was not surprised when the Session object was null -- I'm pretty sure I'm leaving out a step. What else do I need to do to fill my Session property with a mock object?
[EDIT] Here's a simple test scenario
Code to test. Simple request / service
[Route("getKey/{key}")]
public class MyRequest:IReturn<string>
{
public string Key { get; set; }
}
public class MyService:Service
{
public string Get(MyRequest request)
{
return (string) Session[request.Key];
}
}
The base test class and MockSession classes
// test base class
public abstract class MyTestBase : TestBase
{
protected IRestClient Client { get; set; }
protected override void Configure(Container container)
{
// this code is never reached under any of my scenarios below
container.Adapter = new StructureMapContainerAdapter();
ObjectFactory.Initialize(
cfg =>
{
cfg.For<ISession>().Singleton().Use<MockSession>();
});
}
}
public class MockSession : ISession
{
private Dictionary<string, object> m_SessionStorage = new Dictionary<string, object>();
public void Set<T>(string key, T value)
{
m_SessionStorage[key] = value;
}
public T Get<T>(string key)
{
return (T)m_SessionStorage[key];
}
public object this[string key]
{
get { return m_SessionStorage[key]; }
set { m_SessionStorage[key] = value; }
}
}
And tests. See comments for where I'm seeing the failure. I didn't really expect versions 1 & 2 to work, but hoped version 3 would.
[TestFixture]
public class When_getting_a_session_value:MyTestBase
{
[Test]
public void Test_version_1()
{
var session = ObjectFactory.GetInstance<MockSession>();
session["key1"] = "Test";
var request = new MyRequest {Key = "key1"};
var client = new MyService(); // generally works fine, except for things like Session
var result = client.Get(request); // throws NRE inside MyService
result.ShouldEqual("Test");
}
[Test]
public void Test_version_2()
{
var session = ObjectFactory.GetInstance<MockSession>();
session["key1"] = "Test";
var request = new MyRequest {Key = "key1"};
var client = ObjectFactory.GetInstance<MyService>();
var result = client.Get(request); // throws NRE inside MyService
result.ShouldEqual("Test");
}
[Test]
public void Test_version_3()
{
var session = ObjectFactory.GetInstance<MockSession>();
session["key1"] = "Test";
var request = new MyRequest {Key = "key1"};
var client = CreateNewRestClient();
var result = client.Get(request); // throws NotImplementedException here
result.ShouldEqual("Test");
}
}
It looks like you're trying to create unit tests, but you're using an AppHost like you wound an Integration test. See this previous answer for differences between the two and docs on Testing.
You can mock the Session by registering an instance in Request.Items[Keywords.Session], e.g:
[Test]
public void Can_mock_IntegrationTest_Session_with_Request()
{
using var appHost = new BasicAppHost(typeof(MyService).Assembly).Init();
var req = new MockHttpRequest();
req.Items[Keywords.Session] = new AuthUserSession {
UserName = "Mocked"
};
using var service = HostContext.ResolveService<MyService>(req);
Assert.That(service.GetSession().UserName, Is.EqualTo("Mocked"));
}
Otherwise if you set AppHost.TestMode=true ServiceStack will return the IAuthSession that's registered in your IOC, e.g:
[Test]
public void Can_mock_UnitTest_Session_with_IOC()
{
using var appHost = new BasicAppHost
{
TestMode = true,
ConfigureContainer = container =>
{
container.Register<IAuthSession>(c => new AuthUserSession {
UserName = "Mocked",
});
}
}.Init();
var service = new MyService {
Request = new MockHttpRequest()
};
Assert.That(service.GetSession().UserName, Is.EqualTo("Mocked"));
}