From 3927100ea429d00b20b7ed6739487ff1dd238563 Mon Sep 17 00:00:00 2001 From: "David R. Williamson" Date: Tue, 2 Jun 2020 17:07:34 -0700 Subject: [PATCH] samples(adt): add snippets for get and deserialize digital twin --- .../Azure.DigitalTwins.Core.netstandard2.0.cs | 2 + .../ComponentSamples.cs | 73 ++++++-- .../CustomDigitalTwin.cs | 3 + .../Azure.DigitalTwins.Core/samples/Readme.md | 156 ++++++++++++------ .../src/DigitalTwinsClient.cs | 28 +++- .../src/Serialization/BasicDigitalTwin.cs | 36 +++- .../Serialization/UpdateOperationsUtility.cs | 4 +- 7 files changed, 219 insertions(+), 83 deletions(-) diff --git a/sdk/digitaltwins/Azure.DigitalTwins.Core/api/Azure.DigitalTwins.Core.netstandard2.0.cs b/sdk/digitaltwins/Azure.DigitalTwins.Core/api/Azure.DigitalTwins.Core.netstandard2.0.cs index 2e45f3395b5e..faaa813f09fb 100644 --- a/sdk/digitaltwins/Azure.DigitalTwins.Core/api/Azure.DigitalTwins.Core.netstandard2.0.cs +++ b/sdk/digitaltwins/Azure.DigitalTwins.Core/api/Azure.DigitalTwins.Core.netstandard2.0.cs @@ -125,6 +125,8 @@ namespace Azure.DigitalTwins.Core.Serialization public partial class BasicDigitalTwin : Azure.DigitalTwins.Core.Serialization.ModelProperties { public BasicDigitalTwin() { } + [System.Text.Json.Serialization.JsonPropertyNameAttribute("$etag")] + public string ETag { get { throw null; } set { } } [System.Text.Json.Serialization.JsonPropertyNameAttribute("$dtId")] public string Id { get { throw null; } set { } } } diff --git a/sdk/digitaltwins/Azure.DigitalTwins.Core/samples/DigitalTwinsClientSample/ComponentSamples.cs b/sdk/digitaltwins/Azure.DigitalTwins.Core/samples/DigitalTwinsClientSample/ComponentSamples.cs index bf7fe203a8df..345841b10913 100644 --- a/sdk/digitaltwins/Azure.DigitalTwins.Core/samples/DigitalTwinsClientSample/ComponentSamples.cs +++ b/sdk/digitaltwins/Azure.DigitalTwins.Core/samples/DigitalTwinsClientSample/ComponentSamples.cs @@ -3,6 +3,7 @@ using System; using System.Collections.Generic; +using System.Net; using System.Text.Json; using System.Threading.Tasks; using Azure.DigitalTwins.Core.Serialization; @@ -32,7 +33,7 @@ public async Task RunSamplesAsync() string componentModelId = await GetUniqueModelIdAsync(SamplesConstants.TemporaryComponentModelPrefix, DigitalTwinsClient).ConfigureAwait(false); string modelId = await GetUniqueModelIdAsync(SamplesConstants.TemporaryModelPrefix, DigitalTwinsClient).ConfigureAwait(false); - string dtId1 = await GetUniqueTwinIdAsync(SamplesConstants.TemporaryTwinPrefix, DigitalTwinsClient).ConfigureAwait(false); + string basicDtId = await GetUniqueTwinIdAsync(SamplesConstants.TemporaryTwinPrefix, DigitalTwinsClient).ConfigureAwait(false); string newComponentModelPayload = SamplesConstants.TemporaryComponentModelPayload .Replace(SamplesConstants.ComponentId, componentModelId); @@ -49,11 +50,11 @@ public async Task RunSamplesAsync() #region Snippet:DigitalTwinsSampleCreateBasicTwin - // Create digital twin with Component payload using the BasicDigitalTwin serialization helper + // Create digital twin with component payload using the BasicDigitalTwin serialization helper var basicDigitalTwin = new BasicDigitalTwin { - Id = dtId1 + Id = basicDtId }; basicDigitalTwin.Metadata.ModelId = modelId; basicDigitalTwin.CustomProperties.Add("Prop1", "Value1"); @@ -66,19 +67,45 @@ public async Task RunSamplesAsync() basicDigitalTwin.CustomProperties.Add("Component1", componentMetadata); - string dt1Payload = JsonSerializer.Serialize(basicDigitalTwin); + string basicDtPayload = JsonSerializer.Serialize(basicDigitalTwin); - Response createDt1Response = await DigitalTwinsClient.CreateDigitalTwinAsync(dtId1, dt1Payload).ConfigureAwait(false); - Console.WriteLine($"Created digital twin {dtId1} with response {createDt1Response.GetRawResponse().Status}."); + Response createBasicDtResponse = await DigitalTwinsClient.CreateDigitalTwinAsync(basicDtId, basicDtPayload).ConfigureAwait(false); + Console.WriteLine($"Created digital twin {basicDtId} with response {createBasicDtResponse.GetRawResponse().Status}."); #endregion Snippet:DigitalTwinsSampleCreateBasicTwin + // You can also get a digital twin and deserialize it into a BasicDigitalTwin. + // It works well for basic stuff, but as you can see it gets more difficult when delving into + // more complex properties, like components. + + #region Snippet:DigitalTwinsSampleGetBasicDigitalTwin + + Response getBasicDtResponse = await DigitalTwinsClient.GetDigitalTwinAsync(basicDtId).ConfigureAwait(false); + if (getBasicDtResponse.GetRawResponse().Status == (int)HttpStatusCode.OK) + { + BasicDigitalTwin basicDt = JsonSerializer.Deserialize(getBasicDtResponse.Value); + + // Must cast Component1 as a JsonElement and get its raw text in order to deserialize it as a dictionary + string component1RawText = ((JsonElement)basicDt.CustomProperties["Component1"]).GetRawText(); + var component1 = JsonSerializer.Deserialize>(component1RawText); + + Console.WriteLine($"Retrieved and deserialized digital twin {basicDt.Id} with ETag {basicDt.ETag} " + + $"and Prop1 '{basicDt.CustomProperties["Prop1"]}', Prop2 '{basicDt.CustomProperties["Prop2"]}', " + + $"ComponentProp1 '{component1["ComponentProp1"]}', ComponentProp2 '{component1["ComponentProp2"]}'"); + } + + #endregion Snippet:DigitalTwinsSampleGetBasicDigitalTwin + + // Alternatively, you can create your own custom data types to serialize and deserialize your digital twins. + // By specifying your properties and types directly, it requires less code or knowledge of the type for + // interaction. + #region Snippet:DigitalTwinsSampleCreateCustomTwin - string dtId2 = await GetUniqueTwinIdAsync(SamplesConstants.TemporaryTwinPrefix, DigitalTwinsClient).ConfigureAwait(false); + string customDtId = await GetUniqueTwinIdAsync(SamplesConstants.TemporaryTwinPrefix, DigitalTwinsClient).ConfigureAwait(false); var customDigitalTwin = new CustomDigitalTwin { - Id = dtId2, + Id = customDtId, Metadata = new CustomDigitalTwinMetadata { ModelId = modelId }, Prop1 = "Prop1 val", Prop2 = "Prop2 val", @@ -91,11 +118,27 @@ public async Task RunSamplesAsync() }; string dt2Payload = JsonSerializer.Serialize(customDigitalTwin); - Response createDt2Response = await DigitalTwinsClient.CreateDigitalTwinAsync(dtId2, dt2Payload).ConfigureAwait(false); - Console.WriteLine($"Created digital twin {dtId2} with response {createDt2Response.GetRawResponse().Status}."); + Response createCustomDtResponse = await DigitalTwinsClient.CreateDigitalTwinAsync(customDtId, dt2Payload).ConfigureAwait(false); + Console.WriteLine($"Created digital twin {customDtId} with response {createCustomDtResponse.GetRawResponse().Status}."); #endregion Snippet:DigitalTwinsSampleCreateCustomTwin + // Getting and deserializing a digital twin into a custom data type is extremely easy. + // Custom types provide the best possible experience. + + #region Snippet:DigitalTwinsSampleGetCustomDigitalTwin + + Response getCustomDtResponse = await DigitalTwinsClient.GetDigitalTwinAsync(customDtId).ConfigureAwait(false); + if (getCustomDtResponse.GetRawResponse().Status == (int)HttpStatusCode.OK) + { + CustomDigitalTwin customDt = JsonSerializer.Deserialize(getCustomDtResponse.Value); + Console.WriteLine($"Retrieved and deserialized digital twin {customDt.Id} with ETag {customDt.ETag} " + + $"and Prop1 '{customDt.Prop1}', Prop2 '{customDt.Prop2}', " + + $"ComponentProp1 '{customDt.Component1.ComponentProp1}, ComponentProp2 '{customDt.Component1.ComponentProp2}'"); + } + + #endregion Snippet:DigitalTwinsSampleGetCustomDigitalTwin + #region Snippet:DigitalTwinsSampleUpdateComponent // Update Component1 by replacing the property ComponentProp1 value @@ -103,9 +146,9 @@ public async Task RunSamplesAsync() componentUpdateUtility.AppendReplaceOp("/ComponentProp1", "Some new value"); string updatePayload = componentUpdateUtility.Serialize(); - Response response = await DigitalTwinsClient.UpdateComponentAsync(dtId1, "Component1", updatePayload); + Response response = await DigitalTwinsClient.UpdateComponentAsync(basicDtId, "Component1", updatePayload); - Console.WriteLine($"Updated component for digital twin {dtId1}. Update response status: {response.GetRawResponse().Status}"); + Console.WriteLine($"Updated component for digital twin {basicDtId}. Update response status: {response.GetRawResponse().Status}"); #endregion Snippet:DigitalTwinsSampleUpdateComponent @@ -113,7 +156,7 @@ public async Task RunSamplesAsync() #region Snippet:DigitalTwinsSampleGetComponent - response = await DigitalTwinsClient.GetComponentAsync(dtId1, SamplesConstants.ComponentPath).ConfigureAwait(false); + response = await DigitalTwinsClient.GetComponentAsync(basicDtId, SamplesConstants.ComponentPath).ConfigureAwait(false); Console.WriteLine($"Get component for digital twin: \n{response.Value}. Get response status: {response.GetRawResponse().Status}"); @@ -123,8 +166,8 @@ public async Task RunSamplesAsync() try { - await DigitalTwinsClient.DeleteDigitalTwinAsync(dtId1).ConfigureAwait(false); - await DigitalTwinsClient.DeleteDigitalTwinAsync(dtId2).ConfigureAwait(false); + await DigitalTwinsClient.DeleteDigitalTwinAsync(basicDtId).ConfigureAwait(false); + await DigitalTwinsClient.DeleteDigitalTwinAsync(customDtId).ConfigureAwait(false); } catch (RequestFailedException ex) { diff --git a/sdk/digitaltwins/Azure.DigitalTwins.Core/samples/DigitalTwinsClientSample/CustomDigitalTwin.cs b/sdk/digitaltwins/Azure.DigitalTwins.Core/samples/DigitalTwinsClientSample/CustomDigitalTwin.cs index 4a55f8c5e1d4..ff7386b9ee35 100644 --- a/sdk/digitaltwins/Azure.DigitalTwins.Core/samples/DigitalTwinsClientSample/CustomDigitalTwin.cs +++ b/sdk/digitaltwins/Azure.DigitalTwins.Core/samples/DigitalTwinsClientSample/CustomDigitalTwin.cs @@ -15,6 +15,9 @@ internal class CustomDigitalTwin [JsonPropertyName("$dtId")] public string Id { get; set; } + [JsonPropertyName("$etag")] + public string ETag { get; set; } + [JsonPropertyName("$metadata")] public CustomDigitalTwinMetadata Metadata { get; set; } diff --git a/sdk/digitaltwins/Azure.DigitalTwins.Core/samples/Readme.md b/sdk/digitaltwins/Azure.DigitalTwins.Core/samples/Readme.md index 2c68cd1672bd..a6536b1274f7 100644 --- a/sdk/digitaltwins/Azure.DigitalTwins.Core/samples/Readme.md +++ b/sdk/digitaltwins/Azure.DigitalTwins.Core/samples/Readme.md @@ -1,16 +1,17 @@ -# Digital Twin Samples +# Digital Twins Samples + You can explore azure digital twin APIs (using the SDK) using the samples project. Sample project demonstrates the following: -* Create, get and decommision models -* Create, query and delete a Digital Twin +* Create, get, and decommission models +* Create, query, and delete a Digital Twin * Get and update components for a Digital Twin -* Create, get and delete relationships between Digital Twins -* Create, get and delete event routes for Digital Twin +* Create, get, and delete relationships between Digital Twins +* Create, get, and delete event routes for Digital Twin * Publish telemetry messages to a Digital Twin and Digital Twin component -## Creating Digital Twin Client +## Creating the digital twins client -To create a new Digital Twin Client, you need the endpoint to an Azure Digital Twin and credentials. +To create a new digital twins Client, you need the endpoint to an Azure Digital Twin instance and credentials. In the sample below, you can set `AdtEndpoint`, `TenantId`, `ClientId`, and `ClientSecret` as command-line arguments. The client requires an instance of [TokenCredential](https://docs.microsoft.com/en-us/dotnet/api/azure.core.tokencredential?view=azure-dotnet). In these samples, we illustrate how to use two derived classes: ClientSecretCredential, InteractiveLogin. @@ -52,9 +53,9 @@ var dtClient = new DigitalTwinsClient( clientOptions); ``` -## Create, List, Decommision and Delete Models +## Create, list, decommission, and delete models -### Create Models +### Create models Let's create models using the code below. You need to pass in List containing list of json models. Check out sample models [here](https://github.com/Azure/azure-sdk-for-net-pr/tree/feature/IoT-ADT/sdk/digitaltwins/Azure.DigitalTwins.Core/samples/DigitalTwinsClientSample/DTDL/Models "Models") @@ -63,9 +64,9 @@ Response> response = await DigitalTwinsClient.CreateMod Console.WriteLine($"Successfully created a model with Id: {newComponentModelId}, {sampleModelId}, status: {response.GetRawResponse().Status}"); ``` -### List Models +### List models -Using `GetModelsAsync`, all created models are listed as AsyncPageable +Using `GetModelsAsync`, all created models are returned as AsyncPageable ```C# Snippet:DigitalTwinsSampleGetModels AsyncPageable allModels = DigitalTwinsClient.GetModelsAsync(); @@ -81,9 +82,9 @@ Use `GetModelAsync` with model's unique identifier to get a specific model Response sampleModel = await DigitalTwinsClient.GetModelAsync(sampleModelId).ConfigureAwait(false); ``` -### Decommission Models +### Decommission models -To decommision a model, pass in a model id for the model you want to decommision +To decommision a model, pass in a model Id for the model you want to decommision. ```C# Snippet:DigitalTwinsSampleDecommisionModel try @@ -98,9 +99,9 @@ catch (Exception ex) } ``` -### Delete Models +### Delete models -To delete a model, pass in a model id for the model you want to delete +To delete a model, pass in a model Id for the model you want to delete. ```C# Snippet:DigitalTwinsSampleDeleteModel try @@ -115,9 +116,9 @@ catch (Exception ex) } ``` -## Create and delete Digital Twin +## Create and delete digital twins -### Create Digital Twin +### Create digital twins For Creating Twin you will need to provide Id of a digital Twin such as `myTwin` and the application/json digital twin based on the model created earlier. You can look at sample application/json [here](https://github.com/Azure/azure-sdk-for-net-pr/tree/feature/IoT-ADT/sdk/digitaltwins/Azure.DigitalTwins.Core/samples/DigitalTwinsClientSample/DTDL/DigitalTwins "DigitalTwin"). @@ -125,11 +126,11 @@ One option is to use the provided class BasicDigitalTwin for serialization and d It uses functionality from the `System.Text.Json` library to maintain any unmapped json properties to a dictionary. ```C# Snippet:DigitalTwinsSampleCreateBasicTwin -// Create digital twin with Component payload using the BasicDigitalTwin serialization helper +// Create digital twin with component payload using the BasicDigitalTwin serialization helper var basicDigitalTwin = new BasicDigitalTwin { - Id = dtId1 + Id = basicDtId }; basicDigitalTwin.Metadata.ModelId = modelId; basicDigitalTwin.CustomProperties.Add("Prop1", "Value1"); @@ -142,20 +143,67 @@ componentMetadata.CustomProperties.Add("ComponentProp2", "ComponentValue2"); basicDigitalTwin.CustomProperties.Add("Component1", componentMetadata); -string dt1Payload = JsonSerializer.Serialize(basicDigitalTwin); +string basicDtPayload = JsonSerializer.Serialize(basicDigitalTwin); + +Response createBasicDtResponse = await DigitalTwinsClient.CreateDigitalTwinAsync(basicDtId, basicDtPayload).ConfigureAwait(false); +Console.WriteLine($"Created digital twin {basicDtId} with response {createBasicDtResponse.GetRawResponse().Status}."); +``` + +Alternatively, you can create your own custom data types to serialize and deserialize your digital twins. +By specifying your properties and types directly, it requires less code or knowledge of the type for +interaction. + +```C# Snippet:DigitalTwinsSampleCreateCustomTwin +string customDtId = await GetUniqueTwinIdAsync(SamplesConstants.TemporaryTwinPrefix, DigitalTwinsClient).ConfigureAwait(false); +var customDigitalTwin = new CustomDigitalTwin +{ + Id = customDtId, + Metadata = new CustomDigitalTwinMetadata { ModelId = modelId }, + Prop1 = "Prop1 val", + Prop2 = "Prop2 val", + Component1 = new Component1 + { + Metadata = new Component1Metadata { ModelId = componentModelId }, + ComponentProp1 = "Component prop1 val", + ComponentProp2 = "Component prop2 val", + } +}; +string dt2Payload = JsonSerializer.Serialize(customDigitalTwin); + +Response createCustomDtResponse = await DigitalTwinsClient.CreateDigitalTwinAsync(customDtId, dt2Payload).ConfigureAwait(false); +Console.WriteLine($"Created digital twin {customDtId} with response {createCustomDtResponse.GetRawResponse().Status}."); +``` + +### Get and deserialize a digital twin + -Response createDt1Response = await DigitalTwinsClient.CreateDigitalTwinAsync(dtId1, dt1Payload).ConfigureAwait(false); -Console.WriteLine($"Created digital twin {dtId1} with response {createDt1Response.GetRawResponse().Status}."); +You can get a digital twin and deserialize it into a BasicDigitalTwin. +It works well for basic stuff, but as you can see it gets more difficult when delving into more complex properties, like components. + +```C# Snippet:DigitalTwinsSampleGetBasicDigitalTwin +Response getBasicDtResponse = await DigitalTwinsClient.GetDigitalTwinAsync(basicDtId).ConfigureAwait(false); +if (getBasicDtResponse.GetRawResponse().Status == (int)HttpStatusCode.OK) +{ + BasicDigitalTwin basicDt = JsonSerializer.Deserialize(getBasicDtResponse.Value); + + // Must cast Component1 as a JsonElement and get its raw text in order to deserialize it as a dictionary + string component1RawText = ((JsonElement)basicDt.CustomProperties["Component1"]).GetRawText(); + var component1 = JsonSerializer.Deserialize>(component1RawText); + + Console.WriteLine($"Retrieved and deserialized digital twin {basicDt.Id} with ETag {basicDt.ETag} " + + $"and Prop1 '{basicDt.CustomProperties["Prop1"]}', Prop2 '{basicDt.CustomProperties["Prop2"]}', " + + $"ComponentProp1 '{component1["ComponentProp1"]}', ComponentProp2 '{component1["ComponentProp2"]}'"); +} ``` -For known twin model types, it may be best to create your own class that maps all the properties. -This makes your code more readable, and properties easier to work with. +Getting and deserializing a digital twin into a custom data type is extremely easy. +Custom types provide the best possible experience. ```C# Snippet:DigitalTwinsSampleCreateCustomTwin -string dtId2 = await GetUniqueTwinIdAsync(SamplesConstants.TemporaryTwinPrefix, DigitalTwinsClient).ConfigureAwait(false); +string customDtId = await GetUniqueTwinIdAsync(SamplesConstants.TemporaryTwinPrefix, DigitalTwinsClient).ConfigureAwait(false); var customDigitalTwin = new CustomDigitalTwin { - Id = dtId2, + Id = customDtId, Metadata = new CustomDigitalTwinMetadata { ModelId = modelId }, Prop1 = "Prop1 val", Prop2 = "Prop2 val", @@ -168,11 +216,11 @@ var customDigitalTwin = new CustomDigitalTwin }; string dt2Payload = JsonSerializer.Serialize(customDigitalTwin); -Response createDt2Response = await DigitalTwinsClient.CreateDigitalTwinAsync(dtId2, dt2Payload).ConfigureAwait(false); -Console.WriteLine($"Created digital twin {dtId2} with response {createDt2Response.GetRawResponse().Status}."); +Response createCustomDtResponse = await DigitalTwinsClient.CreateDigitalTwinAsync(customDtId, dt2Payload).ConfigureAwait(false); +Console.WriteLine($"Created digital twin {customDtId} with response {createCustomDtResponse.GetRawResponse().Status}."); ``` -### Query Digital Twin +### Query digital twins Query the Azure Digital Twins instance for digital twins using the [Azure Digital Twins Query Store lanaguage](https://review.docs.microsoft.com/en-us/azure/digital-twins-v2/concepts-query-language?branch=pr-en-us-114648). Query calls support paging. Here's an example of how to query for digital twins and how to iterate over the results. @@ -222,19 +270,19 @@ await foreach (Page page in asyncPageableResponseWithCharge.AsPages()) } ``` -### Delete Digital Twin +### Delete digital twins -Delete a digital twin simply by providing id of a digital twin as below. +Delete a digital twin simply by providing Id of a digital twin as below. ```C# Snippet:DigitalTwinsSampleDeleteTwin await DigitalTwinsClient.DeleteDigitalTwinAsync(twin.Key).ConfigureAwait(false); ``` -## Get and update Digital Twin Component +## Get and update digital twin components -### Update Digital Twin Component +### Update digital twin components -To update a component or in other words to replace, remove and/or add a component property or subproperty within Digital Twin, you would need id of a digital twin, component name and application/json-patch+json operations to be performed on the specified digital twin's component. Here is the sample code on how to do it. +To update a component or in other words to replace, remove and/or add a component property or subproperty within Digital Twin, you would need Id of a digital twin, component name and application/json-patch+json operations to be performed on the specified digital twin's component. Here is the sample code on how to do it. ```C# Snippet:DigitalTwinsSampleUpdateComponent // Update Component1 by replacing the property ComponentProp1 value @@ -242,26 +290,26 @@ var componentUpdateUtility = new UpdateOperationsUtility(); componentUpdateUtility.AppendReplaceOp("/ComponentProp1", "Some new value"); string updatePayload = componentUpdateUtility.Serialize(); -Response response = await DigitalTwinsClient.UpdateComponentAsync(dtId1, "Component1", updatePayload); +Response response = await DigitalTwinsClient.UpdateComponentAsync(basicDtId, "Component1", updatePayload); -Console.WriteLine($"Updated component for digital twin {dtId1}. Update response status: {response.GetRawResponse().Status}"); +Console.WriteLine($"Updated component for digital twin {basicDtId}. Update response status: {response.GetRawResponse().Status}"); ``` -### Get Digital Twin Component +### Get digital twin components -Get a component by providing name of a component and id of digital twin it belongs to. +Get a component by providing name of a component and Id of digital twin it belongs to. ```C# Snippet:DigitalTwinsSampleGetComponent -response = await DigitalTwinsClient.GetComponentAsync(dtId1, SamplesConstants.ComponentPath).ConfigureAwait(false); +response = await DigitalTwinsClient.GetComponentAsync(basicDtId, SamplesConstants.ComponentPath).ConfigureAwait(false); Console.WriteLine($"Get component for digital twin: \n{response.Value}. Get response status: {response.GetRawResponse().Status}"); ``` -## Create and list Digital Twin edges +## Create and list digital twin relationships -### Create Digital Twin Edge +### Create digital twin telationships -`CreateEdgeAsync` creates a relationship edge on a digital twin provided with id of a digital twin, name of relationship such as "contains", id of an edge such as "FloorContainsRoom" and an application/json edge to be created. Must contain property with key "$targetId" to specify the target of the edge. Sample payloads for relationships can be found [here](https://github.com/Azure/azure-sdk-for-net-pr/blob/feature/IoT-ADT/sdk/iot/Azure.Iot.DigitalTwins/samples/DigitalTwinServiceClientSample/DTDL/Relationships/HospitalEdges.json "RelationshipExamples"). +`CreateRelationshipAsync` creates a relationship on a digital twin provided with Id of a digital twin, name of relationship such as "contains", Id of an relationship such as "FloorContainsRoom" and an application/json relationship to be created. Must contain property with key "$targetId" to specify the target of the relationship. Sample payloads for relationships can be found [here](https://github.com/Azure/azure-sdk-for-net-pr/blob/feature/IoT-ADT/sdk/iot/Azure.Iot.DigitalTwins/samples/DigitalTwinServiceClientSample/DTDL/Relationships/HospitalRelationships.json "RelationshipExamples"). ```C# Snippet:DigitalTwinsSampleCreateRelationship string serializedRelationship = JsonSerializer.Serialize(relationship); @@ -273,9 +321,9 @@ await DigitalTwinsClient serializedRelationship) .ConfigureAwait(false); ``` -### List Digital Twin Edges +### List digital twin relationships -`GetEdgesAsync` and `GetIncomingEdgesAsync` lists all the edges and all incoming edges respectively of a digital twin +`GetrelationshipsAsync` and `GetIncomingRelationshipsAsync` lists all the relationships and all incoming relationships respectively of a digital twin ```C# Snippet:DigitalTwinsSampleGetRelationships AsyncPageable relationships = DigitalTwinsClient.GetRelationshipsAsync(twin.Key); @@ -285,11 +333,11 @@ AsyncPageable relationships = DigitalTwinsClient.GetRelationshipsAsync(t AsyncPageable incomingRelationships = DigitalTwinsClient.GetIncomingRelationshipsAsync(twin.Key); ``` -## Create, list and delete event routes of Digital Twin +## Create, list, and delete event routes of digital twins -### Create Event Route +### Create event routes -To create Event route, one needs to provide id of an event route such as "sampleEventRoute" and event route data containing the endpoint and optional filter like the example shown below +To create an event route, provide an Id of an event route such as "sampleEventRoute" and event route data containing the endpoint and optional filter like the example shown below. ```C# Snippet:DigitalTwinsSampleCreateEventRoute string eventFilter = "$eventType = 'DigitalTwinTelemetryMessages' or $eventType = 'DigitalTwinLifecycleNotification'"; @@ -301,9 +349,9 @@ var eventRoute = new EventRoute(_eventhubEndpointName) Response createEventRouteResponse = await DigitalTwinsClient.CreateEventRouteAsync(_eventRouteId, eventRoute).ConfigureAwait(false); ``` -### List Event Routes +### List event routes -List a specific event route given event route id or all event routes setting options with `GetEventRouteAsync` and `GetEventRoutesAsync`. +List a specific event route given event route Id or all event routes setting options with `GetEventRouteAsync` and `GetEventRoutesAsync`. ```C# Snippet:DigitalTwinsSampleGetEventRoutes AsyncPageable response = DigitalTwinsClient.GetEventRoutesAsync(); @@ -313,17 +361,17 @@ await foreach (EventRoute er in response) } ``` -### Delete Event Route +### Delete event routes -Delete an event route given event route id +Delete an event route given event route Id. ```C# Snippet:DigitalTwinsSampleDeleteEventRoute Response response = await DigitalTwinsClient.DeleteEventRouteAsync(_eventRouteId).ConfigureAwait(false); ``` -### Publish telemetry messages to a Digital Twin +### Publish telemetry messages for a digital twin -To publish a telemetry message to a digital twin, you need to provide the digital twin id, along with the payload on which telemetry that needs the update. +To publish a telemetry message for a digital twin, you need to provide the digital twin Id, along with the payload on which telemetry that needs the update. ```C# Snippet:DigitalTwinsSamplePublishTelemetry // construct your json telemetry payload by hand. @@ -331,7 +379,7 @@ Response publishTelemetryResponse = await DigitalTwinsClient.PublishTelemetryAsy Console.WriteLine($"Successfully published telemetry message, status: {publishTelemetryResponse.Status}"); ``` -You can also publish a telemetry message to a specific component in a digital twin. In addition to the digital twin id and payload, you need to specify the target component id. +You can also publish a telemetry message for a specific component in a digital twin. In addition to the digital twin Id and payload, you need to specify the target component Id. ```C# Snippet:DigitalTwinsSamplePublishComponentTelemetry // construct your json telemetry payload by serializing a dictionary. diff --git a/sdk/digitaltwins/Azure.DigitalTwins.Core/src/DigitalTwinsClient.cs b/sdk/digitaltwins/Azure.DigitalTwins.Core/src/DigitalTwinsClient.cs index 5d31f6589db7..d82597e05fa9 100644 --- a/sdk/digitaltwins/Azure.DigitalTwins.Core/src/DigitalTwinsClient.cs +++ b/sdk/digitaltwins/Azure.DigitalTwins.Core/src/DigitalTwinsClient.cs @@ -114,6 +114,20 @@ protected DigitalTwinsClient() /// The Id of the digital twin. /// The cancellation token. /// The application/json digital twin and the http response. + /// + /// This sample demonstrates getting and deserializing a digital twin into a custom data type. + /// + /// + /// Response<string> getCustomDtResponse = await DigitalTwinsClient.GetDigitalTwinAsync(customDtId).ConfigureAwait(false); + /// if (getCustomDtResponse.GetRawResponse().Status == (int)HttpStatusCode.OK) + /// { + /// CustomDigitalTwin customDt = JsonSerializer.Deserialize<CustomDigitalTwin>(getCustomDtResponse.Value); + /// Console.WriteLine($"Retrieved and deserialized digital twin {customDt.Id} with ETag {customDt.ETag} " + + /// $"and Prop1 '{customDt.Prop1}', Prop2 '{customDt.Prop2}', " + + /// $"ComponentProp1 '{customDt.Component1.ComponentProp1}, ComponentProp2 '{customDt.Component1.ComponentProp2}'"); + /// } + /// + /// public virtual Task> GetDigitalTwinAsync(string digitalTwinId, CancellationToken cancellationToken = default) { return _dtRestClient.GetByIdAsync(digitalTwinId, cancellationToken); @@ -145,10 +159,10 @@ public virtual Response GetDigitalTwin(string digitalTwinId, Cancellatio /// The digital twin must be the serialization of an instance of or the serialization of an extension of that type. /// /// - /// string dtId2 = await GetUniqueTwinIdAsync(SamplesConstants.TemporaryTwinPrefix, DigitalTwinsClient).ConfigureAwait(false); + /// string customDtId = await GetUniqueTwinIdAsync(SamplesConstants.TemporaryTwinPrefix, DigitalTwinsClient).ConfigureAwait(false); /// var customDigitalTwin = new CustomDigitalTwin /// { - /// Id = dtId2, + /// Id = customDtId, /// Metadata = new CustomDigitalTwinMetadata { ModelId = modelId }, /// Prop1 = "Prop1 val", /// Prop2 = "Prop2 val", @@ -161,8 +175,8 @@ public virtual Response GetDigitalTwin(string digitalTwinId, Cancellatio /// }; /// string dt2Payload = JsonSerializer.Serialize(customDigitalTwin); /// - /// Response<string> createDt2Response = await DigitalTwinsClient.CreateDigitalTwinAsync(dtId2, dt2Payload).ConfigureAwait(false); - /// Console.WriteLine($"Created digital twin {dtId2} with response {createDt2Response.GetRawResponse().Status}."); + /// Response<string> createCustomDtResponse = await DigitalTwinsClient.CreateDigitalTwinAsync(customDtId, dt2Payload).ConfigureAwait(false); + /// Console.WriteLine($"Created digital twin {customDtId} with response {createCustomDtResponse.GetRawResponse().Status}."); /// /// public virtual Task> CreateDigitalTwinAsync(string digitalTwinId, string digitalTwin, CancellationToken cancellationToken = default) @@ -254,7 +268,7 @@ public virtual Response UpdateDigitalTwin(string digitalTwinId, string d /// Json string representation of the component corresponding to the provided componentPath and the HTTP response. /// /// - /// response = await DigitalTwinsClient.GetComponentAsync(dtId1, SamplesConstants.ComponentPath).ConfigureAwait(false); + /// response = await DigitalTwinsClient.GetComponentAsync(basicDtId, SamplesConstants.ComponentPath).ConfigureAwait(false); /// /// Console.WriteLine($"Get component for digital twin: \n{response.Value}. Get response status: {response.GetRawResponse().Status}"); /// @@ -292,9 +306,9 @@ public virtual Response GetComponent(string digitalTwinId, string compon /// componentUpdateUtility.AppendReplaceOp("/ComponentProp1", "Some new value"); /// string updatePayload = componentUpdateUtility.Serialize(); /// - /// Response<string> response = await DigitalTwinsClient.UpdateComponentAsync(dtId1, "Component1", updatePayload); + /// Response<string> response = await DigitalTwinsClient.UpdateComponentAsync(basicDtId, "Component1", updatePayload); /// - /// Console.WriteLine($"Updated component for digital twin {dtId1}. Update response status: {response.GetRawResponse().Status}"); + /// Console.WriteLine($"Updated component for digital twin {basicDtId}. Update response status: {response.GetRawResponse().Status}"); /// /// public virtual Task> UpdateComponentAsync(string digitalTwinId, string componentPath, string componentUpdateOperations, RequestOptions requestOptions = default, CancellationToken cancellationToken = default) diff --git a/sdk/digitaltwins/Azure.DigitalTwins.Core/src/Serialization/BasicDigitalTwin.cs b/sdk/digitaltwins/Azure.DigitalTwins.Core/src/Serialization/BasicDigitalTwin.cs index 9330f5dd7dea..2fd792d82f84 100644 --- a/sdk/digitaltwins/Azure.DigitalTwins.Core/src/Serialization/BasicDigitalTwin.cs +++ b/sdk/digitaltwins/Azure.DigitalTwins.Core/src/Serialization/BasicDigitalTwin.cs @@ -9,12 +9,14 @@ namespace Azure.DigitalTwins.Core.Serialization /// An optional, helper class for deserializing a digital twin. /// /// + /// Here's an example of how to use the BasicDigitalTwin helper class to serialize and create a digital twin. + /// /// - /// // Create digital twin with Component payload using the BasicDigitalTwin serialization helper + /// // Create digital twin with component payload using the BasicDigitalTwin serialization helper /// /// var basicDigitalTwin = new BasicDigitalTwin /// { - /// Id = dtId1 + /// Id = basicDtId /// }; /// basicDigitalTwin.Metadata.ModelId = modelId; /// basicDigitalTwin.CustomProperties.Add("Prop1", "Value1"); @@ -27,10 +29,28 @@ namespace Azure.DigitalTwins.Core.Serialization /// /// basicDigitalTwin.CustomProperties.Add("Component1", componentMetadata); /// - /// string dt1Payload = JsonSerializer.Serialize(basicDigitalTwin); + /// string basicDtPayload = JsonSerializer.Serialize(basicDigitalTwin); + /// + /// Response<string> createBasicDtResponse = await DigitalTwinsClient.CreateDigitalTwinAsync(basicDtId, basicDtPayload).ConfigureAwait(false); + /// Console.WriteLine($"Created digital twin {basicDtId} with response {createBasicDtResponse.GetRawResponse().Status}."); + /// + /// + /// Here's an example of how to use the BasicDigitalTwin helper class to get and deserialize a digital twin. + /// + /// + /// Response<string> getBasicDtResponse = await DigitalTwinsClient.GetDigitalTwinAsync(basicDtId).ConfigureAwait(false); + /// if (getBasicDtResponse.GetRawResponse().Status == (int)HttpStatusCode.OK) + /// { + /// BasicDigitalTwin basicDt = JsonSerializer.Deserialize<BasicDigitalTwin>(getBasicDtResponse.Value); + /// + /// // Must cast Component1 as a JsonElement and get its raw text in order to deserialize it as a dictionary + /// string component1RawText = ((JsonElement)basicDt.CustomProperties["Component1"]).GetRawText(); + /// var component1 = JsonSerializer.Deserialize<IDictionary<string, object>>(component1RawText); /// - /// Response<string> createDt1Response = await DigitalTwinsClient.CreateDigitalTwinAsync(dtId1, dt1Payload).ConfigureAwait(false); - /// Console.WriteLine($"Created digital twin {dtId1} with response {createDt1Response.GetRawResponse().Status}."); + /// Console.WriteLine($"Retrieved and deserialized digital twin {basicDt.Id} with ETag {basicDt.ETag} " + + /// $"and Prop1 '{basicDt.CustomProperties["Prop1"]}', Prop2 '{basicDt.CustomProperties["Prop2"]}', " + + /// $"ComponentProp1 '{component1["ComponentProp1"]}', ComponentProp2 '{component1["ComponentProp2"]}'"); + /// } /// /// public class BasicDigitalTwin : ModelProperties @@ -40,5 +60,11 @@ public class BasicDigitalTwin : ModelProperties /// [JsonPropertyName("$dtId")] public string Id { get; set; } + + /// + /// A string representing a weak ETag for the entity that this request performs an operation against, as per RFC7232. + /// + [JsonPropertyName("$etag")] + public string ETag { get; set; } } } diff --git a/sdk/digitaltwins/Azure.DigitalTwins.Core/src/Serialization/UpdateOperationsUtility.cs b/sdk/digitaltwins/Azure.DigitalTwins.Core/src/Serialization/UpdateOperationsUtility.cs index ad6b3c1287e1..421fae4f398d 100644 --- a/sdk/digitaltwins/Azure.DigitalTwins.Core/src/Serialization/UpdateOperationsUtility.cs +++ b/sdk/digitaltwins/Azure.DigitalTwins.Core/src/Serialization/UpdateOperationsUtility.cs @@ -16,9 +16,9 @@ namespace Azure.DigitalTwins.Core.Serialization /// componentUpdateUtility.AppendReplaceOp("/ComponentProp1", "Some new value"); /// string updatePayload = componentUpdateUtility.Serialize(); /// - /// Response<string> response = await DigitalTwinsClient.UpdateComponentAsync(dtId1, "Component1", updatePayload); + /// Response<string> response = await DigitalTwinsClient.UpdateComponentAsync(basicDtId, "Component1", updatePayload); /// - /// Console.WriteLine($"Updated component for digital twin {dtId1}. Update response status: {response.GetRawResponse().Status}"); + /// Console.WriteLine($"Updated component for digital twin {basicDtId}. Update response status: {response.GetRawResponse().Status}"); /// /// public class UpdateOperationsUtility