microsoftdocs/azure-signalr-service

Azure SignalR Service Skill

This skill provides expert guidance for Azure SignalR Service. Covers troubleshooting, best practices, decision making, architecture & design patterns, limits & quotas, security, configuration, integrations & coding patterns, and deployment. It combines local quick-reference content with remote documentation fetching capabilities.

How to Use This Skill

IMPORTANT for Agent: Use the Category Index below to locate relevant sections. For categories with line ranges (e.g., L35-L120), use read_file with the specified lines. For categories with file links (e.g., [security.md](security.md)), use read_file on the linked reference file

IMPORTANT for Agent: If metadata.generated_at is more than 3 months old, suggest the user pull the latest version from the repository. If mcp_microsoftdocs tools are not available, suggest the user install it: Installation Guide

This skill requires network access to fetch documentation content:

• Preferred: Use mcp_microsoftdocs:microsoft_docs_fetch with query string from=learn-agent-skill. Returns Markdown.
• Fallback: Use fetch_webpage with query string from=learn-agent-skill&accept=text/markdown. Returns Markdown.

Category Index

| Category | Lines | Description | |----------|-------|-------------| | Troubleshooting | L37-L45 | Diagnosing and fixing SignalR issues: connectivity and message delivery problems, live trace and Azure Monitor logs, common error patterns, and best practices for reliable operation. | | Best Practices | L46-L51 | Guidance on safely shutting down SignalR app servers and managing client lifecycle events, including detecting, handling, and recovering from client disconnects and reconnects. | | Decision Making | L52-L56 | Guidance on choosing the right SignalR Service mode (Default/Serverless/Classic) and configuring availability zones/zone redundancy for high availability and resilience. | | Architecture & Design Patterns | L57-L63 | Patterns for scaling and sharding SignalR, designing resilient multi-region topologies, and architecting high-availability, high-throughput ASP.NET Core SignalR apps with Azure SignalR. | | Limits & Quotas | L64-L70 | Message/connection billing rules, capacity planning, throughput limits, and how to scale Azure SignalR instances within quota and performance constraints. | | Security | L71-L92 | Securing Azure SignalR: auth with Entra ID/managed identities, keys and rotation, network/private endpoints/NSGs, WAF, Key Vault access, RBAC, cross-tenant, and Azure Policy compliance. | | Configuration | L93-L104 | Configuring SignalR apps: connection strings, upstream endpoints, custom domains, monitoring/metrics, negotiation endpoints, Functions bindings, and using the local emulator. | | Integrations & Coding Patterns | L105-L119 | Using SignalR from servers and REST, managing clients, integrating with Event Grid, API Management, Application Gateway, and detailed data-plane REST API references | | Deployment | L120-L130 | Deploying and managing Azure SignalR via CLI, ARM/Bicep templates, autoscale setup, regional moves, and end-to-end web app deployment (incl. GitHub auth) |

Troubleshooting

| Topic | URL | |-------|-----| | Use Azure Monitor resource logs to troubleshoot SignalR | https://learn.microsoft.com/en-us/azure/azure-signalr/signalr-howto-diagnostic-logs | | Troubleshoot common Azure SignalR Service issues | https://learn.microsoft.com/en-us/azure/azure-signalr/signalr-howto-troubleshoot-guide | | Use the Azure SignalR live trace tool for diagnostics | https://learn.microsoft.com/en-us/azure/azure-signalr/signalr-howto-troubleshoot-live-trace | | Troubleshoot SignalR connectivity and message delivery | https://learn.microsoft.com/en-us/azure/azure-signalr/signalr-howto-troubleshoot-method | | Troubleshoot and use Azure SignalR Service effectively | https://learn.microsoft.com/en-us/azure/azure-signalr/signalr-resource-faq |

Best Practices

| Topic | URL | |-------|-----| | Gracefully shut down Azure SignalR app servers | https://learn.microsoft.com/en-us/azure/azure-signalr/server-graceful-shutdown | | Handle client disconnections and reconnections in Azure SignalR | https://learn.microsoft.com/en-us/azure/azure-signalr/signalr-concept-client-disconnections |

Decision Making

| Topic | URL | |-------|-----| | Choose the right Azure SignalR Service mode | https://learn.microsoft.com/en-us/azure/azure-signalr/concept-service-mode |

Architecture & Design Patterns

| Topic | URL | |-------|-----| | Design resilient multi-region Azure SignalR topologies | https://learn.microsoft.com/en-us/azure/azure-signalr/signalr-concept-disaster-recovery | | Scale ASP.NET Core SignalR apps using Azure SignalR | https://learn.microsoft.com/en-us/azure/azure-signalr/signalr-concept-scale-aspnet-core | | Scale Azure SignalR with multiple instances and sharding | https://learn.microsoft.com/en-us/azure/azure-signalr/signalr-howto-scale-multi-instances |

Limits & Quotas

| Topic | URL | |-------|-----| | Understand message and connection counting for SignalR billing | https://learn.microsoft.com/en-us/azure/azure-signalr/signalr-concept-messages-and-connections | | Plan Azure SignalR performance and capacity | https://learn.microsoft.com/en-us/azure/azure-signalr/signalr-concept-performance | | Scale Azure SignalR instances and understand scaling constraints | https://learn.microsoft.com/en-us/azure/azure-signalr/signalr-howto-scale-signalr |

Security

| Topic | URL | |-------|-----| | Disable access key auth and enforce Entra ID for SignalR | https://learn.microsoft.com/en-us/azure/azure-signalr/howto-disable-local-auth | | Configure network access control for Azure SignalR | https://learn.microsoft.com/en-us/azure/azure-signalr/howto-network-access-control | | Secure Azure SignalR with private endpoints | https://learn.microsoft.com/en-us/azure/azure-signalr/howto-private-endpoints | | Use Azure SignalR service tags in NSGs | https://learn.microsoft.com/en-us/azure/azure-signalr/howto-service-tags | | Secure SignalR outbound traffic via shared private endpoints | https://learn.microsoft.com/en-us/azure/azure-signalr/howto-shared-private-endpoints | | Access Key Vault privately from Azure SignalR | https://learn.microsoft.com/en-us/azure/azure-signalr/howto-shared-private-endpoints-key-vault | | Use managed identities with Azure SignalR Service | https://learn.microsoft.com/en-us/azure/azure-signalr/howto-use-managed-identity | | Built-in Azure Policy definitions for Azure SignalR | https://learn.microsoft.com/en-us/azure/azure-signalr/policy-reference | | Apply Azure Policy regulatory compliance controls to SignalR | https://learn.microsoft.com/en-us/azure/azure-signalr/security-controls-policy | | Implement custom authentication for Azure SignalR clients | https://learn.microsoft.com/en-us/azure/azure-signalr/signalr-concept-authenticate-oauth | | Authorize Azure SignalR access with Microsoft Entra ID RBAC | https://learn.microsoft.com/en-us/azure/azure-signalr/signalr-concept-authorize-azure-active-directory | | Authorize Azure SignalR with Microsoft Entra applications | https://learn.microsoft.com/en-us/azure/azure-signalr/signalr-howto-authorize-application | | Configure cross-tenant authorization for Azure SignalR | https://learn.microsoft.com/en-us/azure/azure-signalr/signalr-howto-authorize-cross-tenant | | Authorize Azure SignalR with managed identities | https://learn.microsoft.com/en-us/azure/azure-signalr/signalr-howto-authorize-managed-identity | | Enforce Azure SignalR compliance with Azure Policy | https://learn.microsoft.com/en-us/azure/azure-signalr/signalr-howto-azure-policy | | Configure Azure SignalR Application Firewall rules | https://learn.microsoft.com/en-us/azure/azure-signalr/signalr-howto-configure-application-firewall | | Rotate Azure SignalR access keys securely | https://learn.microsoft.com/en-us/azure/azure-signalr/signalr-howto-key-rotation | | Authenticate Azure SignalR clients with Azure Functions bindings | https://learn.microsoft.com/en-us/azure/azure-signalr/signalr-tutorial-authenticate-azure-functions |

Configuration

| Topic | URL | |-------|-----| | Configure Azure SignalR Service connection strings in apps | https://learn.microsoft.com/en-us/azure/azure-signalr/concept-connection-string | | Configure upstream endpoints and protocols in Azure SignalR | https://learn.microsoft.com/en-us/azure/azure-signalr/concept-upstream | | Configure custom domains for Azure SignalR Service | https://learn.microsoft.com/en-us/azure/azure-signalr/howto-custom-domain | | Configure monitoring for Azure SignalR with Azure Monitor | https://learn.microsoft.com/en-us/azure/azure-signalr/monitor-signalr | | Reference for Azure SignalR monitoring metrics and logs | https://learn.microsoft.com/en-us/azure/azure-signalr/monitor-signalr-reference | | Customize client negotiation endpoints in Azure SignalR | https://learn.microsoft.com/en-us/azure/azure-signalr/signalr-concept-client-negotiation | | Develop and configure Azure Functions apps with SignalR bindings | https://learn.microsoft.com/en-us/azure/azure-signalr/signalr-concept-serverless-development-config | | Use Azure SignalR Local Emulator for serverless development | https://learn.microsoft.com/en-us/azure/azure-signalr/signalr-howto-emulator |

Integrations & Coding Patterns

| Topic | URL | |-------|-----| | Integrate Azure SignalR Service events with Event Grid | https://learn.microsoft.com/en-us/azure/azure-signalr/signalr-concept-event-grid-integration | | Integrate Azure SignalR events with Event Grid | https://learn.microsoft.com/en-us/azure/azure-signalr/signalr-howto-event-grid-integration | | Use Azure SignalR Service SDK from your app server | https://learn.microsoft.com/en-us/azure/azure-signalr/signalr-howto-use | | Manage Azure SignalR clients using the Management SDK | https://learn.microsoft.com/en-us/azure/azure-signalr/signalr-howto-use-management-sdk | | Use Azure SignalR with API Management | https://learn.microsoft.com/en-us/azure/azure-signalr/signalr-howto-work-with-apim | | Use Azure SignalR with Application Gateway | https://learn.microsoft.com/en-us/azure/azure-signalr/signalr-howto-work-with-app-gateway | | Use Azure SignalR Service REST API for broadcasting | https://learn.microsoft.com/en-us/azure/azure-signalr/signalr-quickstart-rest-api | | Use Azure SignalR data-plane REST APIs for messaging | https://learn.microsoft.com/en-us/azure/azure-signalr/signalr-reference-data-plane-rest-api | | Azure SignalR data-plane REST API reference v1 | https://learn.microsoft.com/en-us/azure/azure-signalr/swagger/signalr-data-plane-rest-v1 | | Azure SignalR data-plane REST API reference v1-preview | https://learn.microsoft.com/en-us/azure/azure-signalr/swagger/signalr-data-plane-rest-v1-preview | | Azure SignalR data-plane REST API reference v20220601 | https://learn.microsoft.com/en-us/azure/azure-signalr/swagger/signalr-data-plane-rest-v20220601 |

Deployment

| Topic | URL | |-------|-----| | Create an Azure SignalR Service via Azure CLI script | https://learn.microsoft.com/en-us/azure/azure-signalr/scripts/signalr-cli-create-service | | Provision SignalR Service with App Service using Azure CLI | https://learn.microsoft.com/en-us/azure/azure-signalr/scripts/signalr-cli-create-with-app-service | | Deploy SignalR web app with GitHub authentication via CLI | https://learn.microsoft.com/en-us/azure/azure-signalr/scripts/signalr-cli-create-with-app-service-github-oauth | | Move Azure SignalR resources across regions with ARM templates | https://learn.microsoft.com/en-us/azure/azure-signalr/signalr-howto-move-across-regions | | Configure autoscale for Azure SignalR Premium tier | https://learn.microsoft.com/en-us/azure/azure-signalr/signalr-howto-scale-autoscale | | Deploy Azure SignalR Service using ARM templates | https://learn.microsoft.com/en-us/azure/azure-signalr/signalr-quickstart-azure-signalr-service-arm-template | | Deploy Azure SignalR Service using Bicep templates | https://learn.microsoft.com/en-us/azure/azure-signalr/signalr-quickstart-azure-signalr-service-bicep | | Azure CLI script samples for deploying SignalR Service | https://learn.microsoft.com/en-us/azure/azure-signalr/signalr-reference-cli |