1---2name: azure-signalr-service3description: Expert knowledge for Azure SignalR Service development including troubleshooting, best practices, decision making, architecture & design patterns, limits & quotas, security, configuration, integrations & coding patterns, and deployment. Use when configuring SignalR modes, upstreams, private endpoints, autoscale, multi-region topologies, or Event Grid integration, and other Azure SignalR Service related development tasks. Not for Azure Web PubSub (use azure-web-pubsub), Azure Service Bus (use azure-service-bus), Azure Event Hubs (use azure-event-hubs).4---5# Azure SignalR Service Skill67This 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.89## How to Use This Skill1011> **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 file1213This skill requires **network access** to fetch documentation content:14- **Preferred**: Use `mcp_microsoftdocs:microsoft_docs_fetch`. Returns Markdown.15- **Fallback**: Use `WebFetch`. Returns Markdown.1617## Category Index1819| Category | Lines | Description |20|----------|-------|-------------|21| Troubleshooting | L33-L41 | 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. |22| Best Practices | L42-L47 | Guidance on safely shutting down SignalR app servers and managing client lifecycle events, including detecting, handling, and recovering from client disconnects and reconnects. |23| Decision Making | L48-L52 | Guidance on choosing the right SignalR Service mode (Default/Serverless/Classic) and configuring availability zones/zone redundancy for high availability and resilience. |24| Architecture & Design Patterns | L53-L59 | 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. |25| Limits & Quotas | L60-L66 | Message/connection billing rules, capacity planning, throughput limits, and how to scale Azure SignalR instances within quota and performance constraints. |26| Security | L67-L88 | 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. |27| Configuration | L89-L100 | Configuring SignalR apps: connection strings, upstream endpoints, custom domains, monitoring/metrics, negotiation endpoints, Functions bindings, and using the local emulator. |28| Integrations & Coding Patterns | L101-L116 | Patterns and APIs for integrating SignalR with servers and gateways: SDK usage, client management, REST data-plane versions, and wiring events through Event Grid, API Management, and Application Gateway. |29| Deployment | L117-L127 | Deploying and managing Azure SignalR via CLI, ARM/Bicep templates, autoscale setup, regional moves, and end-to-end web app deployment (incl. GitHub auth) |3031### Troubleshooting32| Topic | URL |33|-------|-----|34| Use Azure Monitor resource logs to troubleshoot SignalR | https://learn.microsoft.com/en-us/azure/azure-signalr/signalr-howto-diagnostic-logs |35| Troubleshoot common Azure SignalR Service issues | https://learn.microsoft.com/en-us/azure/azure-signalr/signalr-howto-troubleshoot-guide |36| Use the Azure SignalR live trace tool for diagnostics | https://learn.microsoft.com/en-us/azure/azure-signalr/signalr-howto-troubleshoot-live-trace |37| Troubleshoot SignalR connectivity and message delivery | https://learn.microsoft.com/en-us/azure/azure-signalr/signalr-howto-troubleshoot-method |38| Troubleshoot and use Azure SignalR Service effectively | https://learn.microsoft.com/en-us/azure/azure-signalr/signalr-resource-faq |3940### Best Practices41| Topic | URL |42|-------|-----|43| Gracefully shut down Azure SignalR app servers | https://learn.microsoft.com/en-us/azure/azure-signalr/server-graceful-shutdown |44| Handle client disconnections and reconnections in Azure SignalR | https://learn.microsoft.com/en-us/azure/azure-signalr/signalr-concept-client-disconnections |4546### Decision Making47| Topic | URL |48|-------|-----|49| Choose the right Azure SignalR Service mode | https://learn.microsoft.com/en-us/azure/azure-signalr/concept-service-mode |5051### Architecture & Design Patterns52| Topic | URL |53|-------|-----|54| Design resilient multi-region Azure SignalR topologies | https://learn.microsoft.com/en-us/azure/azure-signalr/signalr-concept-disaster-recovery |55| Scale ASP.NET Core SignalR apps using Azure SignalR | https://learn.microsoft.com/en-us/azure/azure-signalr/signalr-concept-scale-aspnet-core |56| Scale Azure SignalR with multiple instances and sharding | https://learn.microsoft.com/en-us/azure/azure-signalr/signalr-howto-scale-multi-instances |5758### Limits & Quotas59| Topic | URL |60|-------|-----|61| Understand message and connection counting for SignalR billing | https://learn.microsoft.com/en-us/azure/azure-signalr/signalr-concept-messages-and-connections |62| Plan Azure SignalR performance and capacity | https://learn.microsoft.com/en-us/azure/azure-signalr/signalr-concept-performance |63| Scale Azure SignalR instances and understand scaling constraints | https://learn.microsoft.com/en-us/azure/azure-signalr/signalr-howto-scale-signalr |6465### Security66| Topic | URL |67|-------|-----|68| Disable access key auth and enforce Entra ID for SignalR | https://learn.microsoft.com/en-us/azure/azure-signalr/howto-disable-local-auth |69| Configure network access control for Azure SignalR | https://learn.microsoft.com/en-us/azure/azure-signalr/howto-network-access-control |70| Secure Azure SignalR with private endpoints | https://learn.microsoft.com/en-us/azure/azure-signalr/howto-private-endpoints |71| Use Azure SignalR service tags in NSGs | https://learn.microsoft.com/en-us/azure/azure-signalr/howto-service-tags |72| Secure SignalR outbound traffic via shared private endpoints | https://learn.microsoft.com/en-us/azure/azure-signalr/howto-shared-private-endpoints |73| Access Key Vault privately from Azure SignalR | https://learn.microsoft.com/en-us/azure/azure-signalr/howto-shared-private-endpoints-key-vault |74| Use managed identities with Azure SignalR Service | https://learn.microsoft.com/en-us/azure/azure-signalr/howto-use-managed-identity |75| Built-in Azure Policy definitions for Azure SignalR | https://learn.microsoft.com/en-us/azure/azure-signalr/policy-reference |76| Apply Azure Policy regulatory compliance controls to SignalR | https://learn.microsoft.com/en-us/azure/azure-signalr/security-controls-policy |77| Implement custom authentication for Azure SignalR clients | https://learn.microsoft.com/en-us/azure/azure-signalr/signalr-concept-authenticate-oauth |78| Authorize Azure SignalR access with Microsoft Entra ID RBAC | https://learn.microsoft.com/en-us/azure/azure-signalr/signalr-concept-authorize-azure-active-directory |79| Authorize Azure SignalR with Microsoft Entra applications | https://learn.microsoft.com/en-us/azure/azure-signalr/signalr-howto-authorize-application |80| Configure cross-tenant authorization for Azure SignalR | https://learn.microsoft.com/en-us/azure/azure-signalr/signalr-howto-authorize-cross-tenant |81| Authorize Azure SignalR with managed identities | https://learn.microsoft.com/en-us/azure/azure-signalr/signalr-howto-authorize-managed-identity |82| Enforce Azure SignalR compliance with Azure Policy | https://learn.microsoft.com/en-us/azure/azure-signalr/signalr-howto-azure-policy |83| Configure Azure SignalR Application Firewall rules | https://learn.microsoft.com/en-us/azure/azure-signalr/signalr-howto-configure-application-firewall |84| Rotate Azure SignalR access keys securely | https://learn.microsoft.com/en-us/azure/azure-signalr/signalr-howto-key-rotation |85| Authenticate Azure SignalR clients with Azure Functions bindings | https://learn.microsoft.com/en-us/azure/azure-signalr/signalr-tutorial-authenticate-azure-functions |8687### Configuration88| Topic | URL |89|-------|-----|90| Configure Azure SignalR Service connection strings in apps | https://learn.microsoft.com/en-us/azure/azure-signalr/concept-connection-string |91| Configure upstream endpoints and protocols in Azure SignalR | https://learn.microsoft.com/en-us/azure/azure-signalr/concept-upstream |92| Configure custom domains for Azure SignalR Service | https://learn.microsoft.com/en-us/azure/azure-signalr/howto-custom-domain |93| Configure monitoring for Azure SignalR with Azure Monitor | https://learn.microsoft.com/en-us/azure/azure-signalr/monitor-signalr |94| Reference for Azure SignalR monitoring metrics and logs | https://learn.microsoft.com/en-us/azure/azure-signalr/monitor-signalr-reference |95| Customize client negotiation endpoints in Azure SignalR | https://learn.microsoft.com/en-us/azure/azure-signalr/signalr-concept-client-negotiation |96| Develop and configure Azure Functions apps with SignalR bindings | https://learn.microsoft.com/en-us/azure/azure-signalr/signalr-concept-serverless-development-config |97| Use Azure SignalR Local Emulator for serverless development | https://learn.microsoft.com/en-us/azure/azure-signalr/signalr-howto-emulator |9899### Integrations & Coding Patterns100| Topic | URL |101|-------|-----|102| Integrate Azure SignalR Service events with Event Grid | https://learn.microsoft.com/en-us/azure/azure-signalr/signalr-concept-event-grid-integration |103| Integrate Azure SignalR events with Event Grid | https://learn.microsoft.com/en-us/azure/azure-signalr/signalr-howto-event-grid-integration |104| Use Azure SignalR Service SDK from your app server | https://learn.microsoft.com/en-us/azure/azure-signalr/signalr-howto-use |105| Manage Azure SignalR clients using the Management SDK | https://learn.microsoft.com/en-us/azure/azure-signalr/signalr-howto-use-management-sdk |106| Use Azure SignalR with API Management | https://learn.microsoft.com/en-us/azure/azure-signalr/signalr-howto-work-with-apim |107| Use Azure SignalR with Application Gateway | https://learn.microsoft.com/en-us/azure/azure-signalr/signalr-howto-work-with-app-gateway |108| Use Azure SignalR REST API for server-to-client messaging | https://learn.microsoft.com/en-us/azure/azure-signalr/signalr-quickstart-rest-api |109| Use Azure SignalR data-plane REST APIs | https://learn.microsoft.com/en-us/azure/azure-signalr/signalr-reference-data-plane-rest-api |110| Integrate with Azure SignalR REST API v1 | https://learn.microsoft.com/en-us/azure/azure-signalr/swagger/signalr-data-plane-rest-v1 |111| Integrate with Azure SignalR REST API v1-preview | https://learn.microsoft.com/en-us/azure/azure-signalr/swagger/signalr-data-plane-rest-v1-preview |112| Integrate with Azure SignalR REST API v20220601 | https://learn.microsoft.com/en-us/azure/azure-signalr/swagger/signalr-data-plane-rest-v20220601 |113| Integrate with Azure SignalR REST API v20241201 | https://learn.microsoft.com/en-us/azure/azure-signalr/swagger/signalr-data-plane-rest-v20241201 |114115### Deployment116| Topic | URL |117|-------|-----|118| Create an Azure SignalR Service via Azure CLI script | https://learn.microsoft.com/en-us/azure/azure-signalr/scripts/signalr-cli-create-service |119| 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 |120| 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 |121| Move Azure SignalR resources across regions with ARM templates | https://learn.microsoft.com/en-us/azure/azure-signalr/signalr-howto-move-across-regions |122| Configure autoscale for Azure SignalR Premium tier | https://learn.microsoft.com/en-us/azure/azure-signalr/signalr-howto-scale-autoscale |123| Deploy Azure SignalR Service using ARM templates | https://learn.microsoft.com/en-us/azure/azure-signalr/signalr-quickstart-azure-signalr-service-arm-template |124| Deploy Azure SignalR Service using Bicep templates | https://learn.microsoft.com/en-us/azure/azure-signalr/signalr-quickstart-azure-signalr-service-bicep |125| Azure CLI script samples for deploying SignalR Service | https://learn.microsoft.com/en-us/azure/azure-signalr/signalr-reference-cli |
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