PollyMassTransit 1.0.1

.NET 6.0 This package targets .NET 6.0. The package is compatible with this framework or higher. 
dotnet add package PollyMassTransit --version 1.0.1
                    


                    

                
NuGet\Install-Package PollyMassTransit -Version 1.0.1
This command is intended to be used within the Package Manager Console in Visual Studio, as it uses the NuGet module's version of Install-Package. 
<PackageReference Include="PollyMassTransit" Version="1.0.1" />
For projects that support PackageReference, copy this XML node into the project file to reference the package. 
<PackageVersion Include="PollyMassTransit" Version="1.0.1" />
                    


                            Directory.Packages.props
                        

                    

                
<PackageReference Include="PollyMassTransit" />
                    


                            Project file
For projects that support Central Package Management (CPM), copy this XML node into the solution Directory.Packages.props file to version the package. 
paket add PollyMassTransit --version 1.0.1
                    


                    

                
#r "nuget: PollyMassTransit, 1.0.1"
#r directive can be used in F# Interactive and Polyglot Notebooks. Copy this into the interactive tool or source code of the script to reference the package. 
#:package PollyMassTransit@1.0.1
#:package directive can be used in C# file-based apps starting in .NET 10 preview 4. Copy this into a .cs file before any lines of code to reference the package. 
#addin nuget:?package=PollyMassTransit&version=1.0.1
                    


                            Install as a Cake Addin
                        

                    

                
#tool nuget:?package=PollyMassTransit&version=1.0.1
                    


                            Install as a Cake Tool

PollyMassTransit

NuGet NuGet Downloads CI License: MIT

Polly v8 producer-side resilience for MassTransit — add retry, timeout, and circuit-breaker to IBus.Publish and SendAsync in two lines.

Key differentiator: MassTransit's built-in retry only applies to consumers. This library fills the producer-side gap.

var resilient = bus.WithPolly(pipeline => pipeline
    .AddRetry(new RetryStrategyOptions
    {
        MaxRetryAttempts = 3,
        Delay = TimeSpan.FromSeconds(1),
        BackoffType = DelayBackoffType.Exponential,
        UseJitter = true,
        ShouldHandle = MassTransitTransientErrors.IsTransient,
    })
    .AddTimeout(TimeSpan.FromSeconds(10)));

await resilient.PublishAsync(new OrderPlaced { OrderId = id }, cancellationToken);

Why PollyMassTransit?

MassTransit's retry middleware sits on the consumer pipeline — it retries message processing. When the producer (your application code publishing or sending messages) fails due to a transient broker outage, MassTransit does nothing. This library adds Polly v8 to the producer side:

Problem Solution
RequestTimeoutException during request-reply Caught by MassTransitTransientErrors.IsTransient
TimeoutException at the transport layer Caught by MassTransitTransientErrors.IsTransient
HttpRequestException (HTTP transport) Caught by MassTransitTransientErrors.IsTransient
TaskCanceledException timeout in transit Caught by MassTransitTransientErrors.IsTransient
Cascading failures during broker downtime Wrap with AddCircuitBreaker

Installation

dotnet add package PollyMassTransit
dotnet add package Polly.Core

Quick-start

1. Manual wiring

// bus is the IBus registered by services.AddMassTransit(...)
var resilient = bus.WithPolly(p => p
    .AddRetry(new RetryStrategyOptions
    {
        MaxRetryAttempts = 3,
        Delay = TimeSpan.FromSeconds(1),
        BackoffType = DelayBackoffType.Exponential,
        UseJitter = true,
        ShouldHandle = MassTransitTransientErrors.IsTransient,
    }));

await resilient.PublishAsync(new OrderPlaced { OrderId = orderId }, ct);
await resilient.SendAsync(new Uri("queue:orders"), new CreateOrder { ... }, ct);

2. Dependency injection

// After services.AddMassTransit(...)
builder.Services.AddPollyMassTransit(pipeline => pipeline
    .AddRetry(new RetryStrategyOptions
    {
        MaxRetryAttempts = 3,
        Delay = TimeSpan.FromSeconds(1),
        BackoffType = DelayBackoffType.Exponential,
        UseJitter = true,
        ShouldHandle = MassTransitTransientErrors.IsTransient,
    })
    .AddTimeout(TimeSpan.FromSeconds(10)));

public class OrderService(ResilientBus bus)
{
    public Task PlaceOrderAsync(Order order, CancellationToken ct)
        => bus.PublishAsync(new OrderPlaced { OrderId = order.Id }, ct);
}

API reference

Member Description
ResilientBus.Inner The underlying IBus
PublishAsync<T>(message, ct) Publishes a message through the pipeline
PublishAsync<T>(message, pipe, ct) Publishes with a pipe configuration through the pipeline
SendAsync<T>(address, message, ct) Sends to an endpoint through the pipeline
ExecuteAsync<T>(operation, ct) Runs any IBus operation through the pipeline
MassTransitTransientErrors.IsTransient PredicateBuilder for RequestTimeoutException, TimeoutException, HttpRequestException, TaskCanceledException
bus.WithPolly(pipeline) Wraps IBus with a pre-built pipeline
bus.WithPolly(configure) Builds pipeline inline and wraps the bus
services.AddPollyMassTransit(configure) DI registration (requires IBus in DI)

Target frameworks

.NET 6 ✅ · .NET 8 ✅ · .NET 9 ✅

Package Description
PollyRabbitMQ Polly v8 for RabbitMQ
PollyKafka Polly v8 for Confluent.Kafka
PollyAzureServiceBus Polly v8 for Azure Service Bus
PollyAzureEventHub Polly v8 for Azure Event Hubs
PollySignalR Polly v8 for SignalR
PollyGrpc Polly v8 for gRPC
PollyRedis Polly v8 for StackExchange.Redis
PollyEFCore Polly v8 for Entity Framework Core
PollyDapper Polly v8 for Dapper
PollyMongo Polly v8 for MongoDB
PollyNpgsql Polly v8 for Npgsql (PostgreSQL)
PollySqlClient Polly v8 for Microsoft.Data.SqlClient
PollyCosmosDb Polly v8 for Azure Cosmos DB
PollyAzureBlob Polly v8 for Azure Blob Storage
PollyOpenAI Polly v8 for OpenAI .NET SDK
PollyMediatR Polly v8 for MediatR
PollyHealthChecks Polly v8 for ASP.NET Core Health Checks
PollySendGrid Polly v8 for SendGrid
PollyAzureTableStorage Polly v8 for Azure Table Storage
PollyMailKit MailKit SMTP email client
PollyAzureQueueStorage Azure Queue Storage QueueClient
PollyHangfire Hangfire IBackgroundJobClient
PollyBackoff Polly v8 backoff helpers

💼 Need .NET consulting?

The author of this package is available for consulting on Polly v8 resilience, Azure cloud architecture, and clean .NET design.

→ solidqualitysolutions.com · LinkedIn

License

MIT © Justin Bannister

Product Compatible and additional computed target framework versions.
.NET net6.0 is compatible.  net6.0-android was computed.  net6.0-ios was computed.  net6.0-maccatalyst was computed.  net6.0-macos was computed.  net6.0-tvos was computed.  net6.0-windows was computed.  net7.0 was computed.  net7.0-android was computed.  net7.0-ios was computed.  net7.0-maccatalyst was computed.  net7.0-macos was computed.  net7.0-tvos was computed.  net7.0-windows was computed.  net8.0 is compatible.  net8.0-android was computed.  net8.0-browser was computed.  net8.0-ios was computed.  net8.0-maccatalyst was computed.  net8.0-macos was computed.  net8.0-tvos was computed.  net8.0-windows was computed.  net9.0 is compatible.  net9.0-android was computed.  net9.0-browser was computed.  net9.0-ios was computed.  net9.0-maccatalyst was computed.  net9.0-macos was computed.  net9.0-tvos was computed.  net9.0-windows was computed.  net10.0 was computed.  net10.0-android was computed.  net10.0-browser was computed.  net10.0-ios was computed.  net10.0-maccatalyst was computed.  net10.0-macos was computed.  net10.0-tvos was computed.  net10.0-windows was computed. 
Compatible target framework(s)
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Version Downloads Last Updated
1.0.1 105 7/7/2026
1.0.0 107 6/24/2026

1.0.1: Fix package icon (was showing an incorrect/placeholder image). 1.0.0: Initial release. ResilientBus wraps IBus in a Polly v8 ResiliencePipeline for producer-side resilience. Includes MassTransitTransientErrors predicate covering RequestTimeoutException, TimeoutException, HttpRequestException, and TaskCanceledException. Supports net6.0, net8.0, and net9.0.