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PollyAzureTableStorage

NuGet NuGet Downloads CI License: MIT

Polly v8 resilience for Azure.Data.Tables — add retry, timeout, and circuit-breaker to any Table Storage operation in two lines.

var tableClient = new TableClient(connectionString, "orders");

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

await resilient.UpsertEntityAsync(entity);
var response = await resilient.GetEntityAsync<OrderEntity>("partitionKey", "rowKey");

Why PollyAzureTableStorage?

Azure Table Storage throttles aggressively at scale and returns 503 during maintenance windows. Without retry logic, a single throttle event causes data loss or visible errors. This library adds Polly v8 resilience with a predicate tuned for Table Storage:

Problem Solution
HTTP 429 throttling (storage account IOPS limit) Caught by TableStorageTransientErrors.IsTransient
HTTP 503 service unavailable during maintenance Caught by TableStorageTransientErrors.IsTransient
HTTP 504 gateway timeout Caught by TableStorageTransientErrors.IsTransient
HttpRequestException network failure Caught by TableStorageTransientErrors.IsTransient
TaskCanceledException timeout in transit Caught by TableStorageTransientErrors.IsTransient

Installation

dotnet add package PollyAzureTableStorage
dotnet add package Polly.Core

Quick-start

1. Manual wiring

var client = new TableClient(connectionString, "orders");

var resilient = client.WithPolly(p => p
    .AddRetry(new RetryStrategyOptions
    {
        MaxRetryAttempts = 3,
        Delay = TimeSpan.FromSeconds(1),
        BackoffType = DelayBackoffType.Exponential,
        UseJitter = true,
        ShouldHandle = TableStorageTransientErrors.IsTransient,
    }));

await resilient.UpsertEntityAsync(order);
var result = await resilient.GetEntityAsync<OrderEntity>("Orders", orderId);

2. Dependency injection

builder.Services.AddPollyAzureTableStorage(connectionString, "orders", pipeline => pipeline
    .AddRetry(new RetryStrategyOptions
    {
        MaxRetryAttempts = 3,
        Delay = TimeSpan.FromSeconds(1),
        BackoffType = DelayBackoffType.Exponential,
        UseJitter = true,
        ShouldHandle = TableStorageTransientErrors.IsTransient,
    })
    .AddTimeout(TimeSpan.FromSeconds(10)));

public class OrderRepository(ResilientTableClient client)
{
    public Task UpsertAsync(OrderEntity order, CancellationToken ct)
        => client.UpsertEntityAsync(order, cancellationToken: ct);

    public Task<Response<OrderEntity>> GetAsync(string pk, string rk, CancellationToken ct)
        => client.GetEntityAsync<OrderEntity>(pk, rk, cancellationToken: ct);
}

API reference

Member Description
ResilientTableClient.Inner The underlying TableClient
AddEntityAsync<T>(entity, ct) Adds an entity through the pipeline
UpsertEntityAsync<T>(entity, mode, ct) Upserts an entity through the pipeline
UpdateEntityAsync<T>(entity, ifMatch, mode, ct) Updates an entity through the pipeline
DeleteEntityAsync(pk, rk, ifMatch, ct) Deletes an entity through the pipeline
GetEntityAsync<T>(pk, rk, select?, ct) Gets a single entity through the pipeline
ExecuteAsync<T>(operation, ct) Runs any TableClient operation through the pipeline
TableStorageTransientErrors.IsTransient PredicateBuilder for 429/503/504, HttpRequestException, TaskCanceledException
TableStorageTransientErrors.StatusCodes IReadOnlySet<int>{429, 503, 504}
client.WithPolly(pipeline) Wraps TableClient with a pre-built pipeline
client.WithPolly(configure) Builds pipeline inline and wraps the client
services.AddPollyAzureTableStorage(configure) DI registration (requires TableClient in DI)
services.AddPollyAzureTableStorage(connStr, table, configure) DI with connection string shortcut

Target frameworks

.NET 6 ✅ · .NET 8 ✅ · .NET 9 ✅

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💼 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