public static IServiceCollection AddForwarderMessageQueue <TMessage, TSourceQueue, TDestinationQueue>(this IServiceCollection services, Action <IServiceProvider, ForwarderMessageQueueOptions> configureOptions)
where TSourceQueue : IMessageQueue <TMessage>
where TDestinationQueue : IMessageQueue <TMessage>
{
if (services is null)
{
throw new ArgumentNullException(nameof(services));
}
if (configureOptions is null)
{
throw new ArgumentNullException(nameof(configureOptions));
}
return(services
.AddSingleton <IMessageQueue <TMessage> >(services =>
{
var logger = services.GetRequiredService <ILogger <ForwarderMessageQueue <TMessage> > >();
var source = services.GetRequiredService <TSourceQueue>();
var destination = services.GetRequiredService <TDestinationQueue>();
var options = new ForwarderMessageQueueOptions();
configureOptions(services, options);
return new ForwarderMessageQueue <TMessage>(logger, Options.Options.Create(options), source, destination);
}));
}
public static async Task Main(string[] _)
{
//elasticsearch setup example
var elasticSearchOptions =
new ElasticSearchMessageQueueOptions <MyMessage>()
.UseConnectionUri(new Uri("YOUR URI HERE"),
(options) =>
{
options.ThrowExceptions();
}
);
var elasticSearchQueue = new ElasticSearchMessageQueue <MyMessage>(new Logger <ElasticSearchMessageQueue <MyMessage> >(), Options.Create(elasticSearchOptions));
//sqlite setup example
var sqliteOptions = new SqliteMessageQueueOptions <MyMessage>()
{
ConnectionString = $"Data Source = {Path.Combine(AppContext.BaseDirectory, "Queue.db")}"
};
var sqliteQueue = new SqliteMessageQueue <MyMessage>(new Logger <SqliteMessageQueue <MyMessage> >(), Options.Create(sqliteOptions));
//mqtt setup example
var mqttOptions =
new MqttMessageQueueOptions <MyMessage>()
.UseManagedMqttClientOptionsBuilder(builder =>
{
builder.WithClientOptions(options =>
options
.WithTcpServer("HOST HERE")
.WithCredentials("USERNAME", "PASSWORD")
.Build()
);
});
//setup for disk queue forwarding to azure queue
var diskOptions = new DiskMessageQueueOptions <MyMessage>()
{
MessageStore = new DirectoryInfo("/my-messages")
};
var diskQueue = new DiskMessageQueue <MyMessage>(new Logger <DiskMessageQueue <MyMessage> >(), Options.Create(diskOptions));
var azureTopicOptions =
new AzureTopicMessageQueueOptions <MyMessage>()
.UseConnectionStringBuilder(
endpoint: "YOUR ENDPOINT HERE",
entityPath: "YOUR ENTITYPATH HERE",
sharedAccessKeyName: "YOUR SHARED ACCESS KEY NAME HERE",
sharedAccessKey: "YOUR SHARED ACCESS KEY HERE"
);
var azureTopic = new AzureTopicMessageQueue <MyMessage>(new Logger <AzureTopicMessageQueue <MyMessage> >(), Options.Create(azureTopicOptions));
var forwarderLogger = new Logger <ForwarderMessageQueue <MyMessage> >();
var forwarderOptions = new ForwarderMessageQueueOptions()
{
SourceSubscriptionName = "YOUR SUBSCRIPTION NAME HERE",
ForwardingErrorHandler = (ex) =>
{
forwarderLogger.LogError(ex, string.Empty);
return(Task.FromResult(CompletionResult.Abandon));
}
};
var forwarder = new ForwarderMessageQueue <MyMessage>(forwarderLogger, Options.Create(forwarderOptions), diskQueue, azureTopic);
//create the message
var msg = new MyMessage()
{
GUID = Guid.NewGuid(),
TEST = "TEST"
};
//with attributes
var attributes = new MessageAttributes()
{
Label = "YOUR LABEL HERE",
ContentType = "application/json"
};
//and post to whichever queue you'd like. this one posts to the forwarder queue which posts to the disk and then forwards to azure
await forwarder.PostMessageAsync(msg, attributes, CancellationToken.None);
Console.Write("press any key to exit");
Console.ReadKey();
}
