atc-azure-messaging
所属分类：中间件编程
开发工具：C#
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上传日期：2023-06-13 11:45:31
上 传 者：
sh-1993
说明： 用于在Azure事件中心和服务总线上发布消息的组件库。，
(A component library for publishing messages on Azure Event Hubs and Service Bus.,)
文件列表:
.editorconfig (30866, 2023-11-10)
Atc.Azure.Messaging.sln (1700, 2023-11-10)
Directory.Build.props (2146, 2023-11-10)
LICENSE (1064, 2023-11-10)
atc-coding-rules-updater.json (88, 2023-11-10)
atc-coding-rules-updater.ps1 (379, 2023-11-10)
global.json (85, 2023-11-10)
images/ (0, 2023-11-10)
images/icon.png (3951, 2023-11-10)
sample/ (0, 2023-11-10)
sample/SampleApi/ (0, 2023-11-10)
sample/SampleApi/Program.cs (2126, 2023-11-10)
sample/SampleApi/Properties/ (0, 2023-11-10)
sample/SampleApi/Properties/launchSettings.json (807, 2023-11-10)
sample/SampleApi/SampleApi.csproj (436, 2023-11-10)
sample/SampleApi/appsettings.json (572, 2023-11-10)
sample/SampleApp.Console/ (0, 2023-11-10)
sample/SampleApp.Console/appsettings.json (268, 2023-11-10)
src/ (0, 2023-11-10)
src/.editorconfig (1138, 2023-11-10)
src/Atc.Azure.Messaging/ (0, 2023-11-10)
src/Atc.Azure.Messaging/Atc.Azure.Messaging.csproj (1055, 2023-11-10)
src/Atc.Azure.Messaging/EventHub/ (0, 2023-11-10)
src/Atc.Azure.Messaging/EventHub/EventHubCredentialsPublisherFactory.cs (1247, 2023-11-10)
src/Atc.Azure.Messaging/EventHub/EventHubPublisher.cs (1359, 2023-11-10)
src/Atc.Azure.Messaging/EventHub/EventHubPublisherFactory.cs (677, 2023-11-10)
src/Atc.Azure.Messaging/EventHub/IEventHubPublisher.cs (492, 2023-11-10)
src/Atc.Azure.Messaging/EventHub/IEventHubPublisherFactory.cs (274, 2023-11-10)
src/Atc.Azure.Messaging/GlobalUsings.cs (734, 2023-11-10)
src/Atc.Azure.Messaging/ServiceBus/ (0, 2023-11-10)
src/Atc.Azure.Messaging/ServiceBus/IServiceBusClientFactory.cs (121, 2023-11-10)
src/Atc.Azure.Messaging/ServiceBus/IServiceBusPublisher.cs (4310, 2023-11-10)
src/Atc.Azure.Messaging/ServiceBus/IServiceBusSenderProvider.cs (141, 2023-11-10)
... ...
[](https://www.nuget.org/packages/Atc.Azure.Messaging)
# ATC Azure Messaging
A .NET component library for publishing messages on Azure Event Hubs and Service Bus. This targets .NET Standard 2.1 and depends on [ATC Azure Options](https://github.com/atc-net/atc-azure-options).
# Getting Started
The first thing you need to do to make sure that your configuration is setup correctly. For the sake of simplicity, let's use the `appsettings.json` file created with every .NET project
The following is an example of how your would configure your EventHub or ServiceBus for [ATC Azure Options](https://github.com/atc-net/atc-azure-options)
```json
{
"EventHubOptions": {
"ConnectionString": "Endpoint=sb://[your eventhub namespace].servicebus.windows.net/;SharedAccessKeyName=[eventhub name];SharedAccessKey=[sas key]"
},
"ServiceBusOptions": {
"ConnectionString": "Endpoint=sb://[your servicebus namespace].servicebus.windows.net/;SharedAccessKeyName=[topic|queue name];SharedAccessKey=[sas key]"
}
}
```
When binding to KeyVault this should of course be `EventHubOptions--ConnectionString` for EventHub or `ServiceBusOptions--ConnectionString` for ServiceBus
The next step is to register the dependencies required to use this component library. For this you can use the `IServiceCollection` extension method `ConfigureMessagingServices(IConfiguration)`. This piggy backs over the `Microsoft.Extensions.DependencyInjection` namespace so that you don't need to include anything extra using statements
Here's an example of how to do this using a Minimal API setup
```csharp
var builder = WebApplication.CreateBuilder(args);
builder.Services.AddEndpointsApiExplorer();
builder.Services.AddSwaggerGen();
// Register Atc.Azure.Messaging dependencies
builder.Services.ConfigureMessagingServices(builder.Configuration);
```
## Connecting with Managed Identity
When connecting with Managed Identity you need to setup your configuration accordingly.
The following is an example of how you would configure your EventHub or ServiceBus with Managed Identity for [ATC Azure Options](https://github.com/atc-net/atc-azure-options)
```json
{
"EventHubOptions": {
"FullyQualifiedNamespace": "[your eventhub namespace].servicebus.windows.net"
},
"ServiceBusOptions": {
"FullyQualifiedNamespace": "[your servicebus namespace].servicebus.windows.net"
},
"ClientAuthorizationOptions": {
"TenantId": "[your tenant id]"
},
"EnvironmentOptions": {
"EnvironmentType": "[Local/DevTest/Production]"
}
}
```
It is important that the logged-in user/application has the `Azure Service Bus Data Sender` or `Azure Service Bus Data Owner` build-in role for [ServiceBus](https://learn.microsoft.com/en-us/azure/service-bus-messaging/service-bus-managed-service-identity#azure-built-in-roles-for-azure-service-bus).
And the corresponding `Azure Event Hubs Data Sender` or `Azure Event Hubs Data Owner` build-in roles for [Eventhubs](https://learn.microsoft.com/en-us/azure/event-hubs/authenticate-application#built-in-roles-for-azure-event-hubs)
The dependencies are registered using `ConfigureMessagingServices(IConfiguration, bool)` for the default implementation of [IAzureCredentialOptionsProvider](https://github.com/atc-net/atc-azure-options/blob/main/src/Atc.Azure.Options/Providers/AzureCredentialOptionsProvider.cs) and `ConfigureMessagingServices(IConfiguration, bool, IAzureCredentialOptionsProvider)` if you wish to use your own implementation of `IAzureCredentialOptionsProvider`.
Here's an example of the default implementation using a Minimal API setup
```csharp
var builder = WebApplication.CreateBuilder(args);
builder.Services.AddEndpointsApiExplorer();
builder.Services.AddSwaggerGen();
// Register Atc.Azure.Messaging dependencies
builder.Services.ConfigureMessagingServices(builder.Configuration, true);
```
## Publishing to EventHub
To publish events to an EventHub you need an instance of `IEventHubPublisher`, this can be constructed via the `IEventHubPublisherFactory` which exposes the `Create(string eventHubName)` method
```csharp
internal class FooPublisher
{
private readonly IEventHubPublisher publisher;
public FooPublisher(IEventHubPublisherFactory factory)
{
publisher = factory.Create("[existing eventhub name]");
}
public Task Publish(object message)
=> publisher.PublishAsync(message);
}
```
## Publishing to ServiceBus
To publish events to a ServiceBus topic or queue you need an instance of `IServiceBusPublisher`
```csharp
internal class BarPublisher
{
private readonly IServiceBusPublisher publisher;
public BarPublisher(IServiceBusPublisher publisher)
{
this.publisher = publisher;
}
public Task Publish(object message)
=> publisher.PublishAsync("[existing servicebus topic]", message);
}
```
### Batch Publish
Multiple messages can also be published in batches to a topic or queue. Simply call the `PublishAsync` method with a list of messages. The messages will be added to a batch until the batch is full before it the batch is published and continue to work on the remaining messages. This process continues until all messages are consumed.
An `InvalidOperationException` is thrown if a single message cannot fit inside a batch by itself. In this case, any previous published batches will not be rolled back and any remaining messages will remain unpublished.
```csharp
internal class BarBatchPublisher
{
private readonly IServiceBusPublisher publisher;
public BarBatchPublisher(IServiceBusPublisher publisher)
{
this.publisher = publisher;
}
public Task Publish(object[] messages)
=> publisher.PublishAsync("[existing servicebus topic]", messages);
}
```
Here's a full example of how to use the publishers above using a Minimal API setup (SwaggerUI enabled) with a single endpoint called `POST /data` that accepts a simple request body `{ "a": "string", "b": "string", "c": "string" }` which publishes the request to an EventHub and a ServiceBus topic
```csharp
using Atc.Azure.Messaging.EventHub;
using Atc.Azure.Messaging.ServiceBus;
var builder = WebApplication.CreateBuilder(args);
builder.Services.AddEndpointsApiExplorer();
builder.Services.AddSwaggerGen();
builder.Services.AddSingleton();
// Register Atc.Azure.Messaging dependencies
builder.Services.ConfigureMessagingServices(builder.Configuration);
var app = builder.Build();
app.UseHttpsRedirection();
if (app.Environment.IsDevelopment())
{
app.UseSwagger();
app.UseSwaggerUI();
}
app.MapPost(
"/data",
(Request request, SendDataHandler handler) => handler.Post(request));
app.Run();
internal class SendDataHandler
{
private readonly IEventHubPublisher eventHubPublisher;
private readonly IServiceBusPublisher serviceBusPublisher;
public SendDataHandler(
IEventHubPublisherFactory eventHubFactory,
IServiceBusPublisher serviceBusPublisher)
{
eventHubPublisher = eventHubFactory.Create("[existing eventhub]");
this.serviceBusPublisher = serviceBusPublisher;
}
public async Task Post(Request request)
{
await eventHubPublisher.PublishAsync(request);
await serviceBusPublisher.PublishAsync("existing topic|queue", request);
return new Response(
Guid.NewGuid().ToString("N"),
request.A,
request.B,
request.C);
}
}
internal record Request(string A, string B, string C);
internal record Response(string Id, string A, string B, string C);
```
# The workflow setup for this repository
[Read more on Git-Flow](https://github.com/atc-net/atc/tree/master/docs/GitFlow.md)
## How to contribute
[Contribution Guidelines](https://atc-net.github.io/introduction/about-atc#how-to-contribute)
[Coding Guidelines](https://atc-net.github.io/introduction/about-atc#coding-guidelines)
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