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version: "1.0.0" name: azure-data-api-builder description: Expert knowledge for Azure Data Api Builder development including troubleshooting, best practices, decision making, limits & quotas, security, configuration, integrations & coding patterns, and deployment. Use when exposing databases via REST/GraphQL, tuning queries, configuring auth, deploying DAB, or using SQL MCP, and other Azure Data Api Builder related development tasks. Not for Azure App Service (use azure-app-service), Azure Functions (use azure-functions), Azure API Management (use azure-api-management). compatibility: Requires network access. Uses mcp_microsoftdocs:microsoft_docs_fetch or fetch_webpage to retrieve documentation. metadata: generated_at: "2026-06-28" generator: "docs2skills/1.0.0"

Azure Data Api Builder Skill

This skill provides expert guidance for Azure Data Api Builder. Covers troubleshooting, best practices, decision making, 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	L36-L48	Diagnosing and fixing DAB issues: config/CLI errors, REST/CORS problems, GraphQL schema/auth, and database-specific troubles for Cosmos DB, SQL (incl. MCP), MySQL, and PostgreSQL.
Best Practices	L49-L55	Guidance on secure, reliable Data API builder configs, adding semantic metadata to SQL MCP entities, and safely using SQL MCP Server with local LLMs.
Decision Making	L56-L61	Comparisons of Data API builder features across supported databases and guidance on selecting secure Microsoft SQL authentication/authorization patterns.
Limits & Quotas	L62-L69	Configuring SQL timeouts, setting and tuning REST/GraphQL page size limits, and understanding database-specific constraints and feature requirements in Data API builder.
Security	L70-L90	Configuring authentication, authorization, and row-level security for Data API builder, including Entra ID, JWT, EasyAuth, managed identity, simulator, and SQL auth, plus security best practices.
Configuration	L91-L133	Configuring Data API builder: CLI setup, JSON schema, entities, data sources, security, caching, telemetry, logging, health checks, OpenAPI, and exposing DB objects via REST/GraphQL.
Integrations & Coding Patterns	L134-L149	GraphQL/REST query patterns in DAB: filtering, sorting, pagination, field projection, exporting schemas, batching mutations, and using SQL MCP tools from AI agents.
Deployment	L150-L158	How to deploy and run Data API builder in different environments (App Service, Docker, air‑gapped), including building from source and configuring backends like local SQL and Cosmos DB NoSQL.

Troubleshooting

Topic	URL
Validate DAB configuration and interpret CLI exit codes	https://learn.microsoft.com/en-us/azure/data-api-builder/command-line/dab-validate
Resolve common issues in Data API builder	https://learn.microsoft.com/en-us/azure/data-api-builder/faq
Troubleshoot Azure Cosmos DB issues in Data API builder	https://learn.microsoft.com/en-us/azure/data-api-builder/troubleshooting/cosmos
Troubleshoot GraphQL schema and authorization in DAB	https://learn.microsoft.com/en-us/azure/data-api-builder/troubleshooting/graphql
Troubleshoot SQL MCP Server issues in Data API builder	https://learn.microsoft.com/en-us/azure/data-api-builder/troubleshooting/mcp
Troubleshoot SQL Server issues in Data API builder	https://learn.microsoft.com/en-us/azure/data-api-builder/troubleshooting/mssql
Troubleshoot MySQL issues in Data API builder	https://learn.microsoft.com/en-us/azure/data-api-builder/troubleshooting/mysql
Troubleshoot PostgreSQL issues in Data API builder	https://learn.microsoft.com/en-us/azure/data-api-builder/troubleshooting/postgresql
Troubleshoot REST endpoint and CORS issues in DAB	https://learn.microsoft.com/en-us/azure/data-api-builder/troubleshooting/rest

Best Practices

Topic	URL
Apply configuration best practices in Data API builder	https://learn.microsoft.com/en-us/azure/data-api-builder/concept/config/best-practices
Add semantic descriptions to SQL MCP Server entities	https://learn.microsoft.com/en-us/azure/data-api-builder/mcp/how-to-add-descriptions
Use SQL MCP Server with local LLMs securely and reliably	https://learn.microsoft.com/en-us/azure/data-api-builder/mcp/use-local-models

Decision Making

Topic	URL
Compare Data API builder feature availability by database	https://learn.microsoft.com/en-us/azure/data-api-builder/feature-availability
Choose Microsoft SQL security patterns for Data API builder	https://learn.microsoft.com/en-us/azure/data-api-builder/quickstart/microsoft-sql-security

Limits & Quotas

Topic	URL
Configure SQL command timeout for Data API builder	https://learn.microsoft.com/en-us/azure/data-api-builder/concept/database/timeout
Limit GraphQL page size with first in DAB	https://learn.microsoft.com/en-us/azure/data-api-builder/keywords/first-graphql
Control REST page size with $first in DAB	https://learn.microsoft.com/en-us/azure/data-api-builder/keywords/first-rest
Database-specific feature requirements for Data API builder	https://learn.microsoft.com/en-us/azure/data-api-builder/reference-database-specific-features

Security

Topic	URL
Select and configure authentication models in Data API builder	https://learn.microsoft.com/en-us/azure/data-api-builder/concept/security/
Configure custom JWT authentication for Data API builder	https://learn.microsoft.com/en-us/azure/data-api-builder/concept/security/authenticate-custom
Use Azure App Service EasyAuth with Data API builder	https://learn.microsoft.com/en-us/azure/data-api-builder/concept/security/authenticate-easy-auth
Configure Microsoft Entra ID auth for Data API builder	https://learn.microsoft.com/en-us/azure/data-api-builder/concept/security/authenticate-entra
Configure On-Behalf-Of authentication for DAB SQL access	https://learn.microsoft.com/en-us/azure/data-api-builder/concept/security/authenticate-on-behalf-of
Use Simulator authentication for local DAB testing	https://learn.microsoft.com/en-us/azure/data-api-builder/concept/security/authenticate-simulator
Configure Unauthenticated provider in Data API builder	https://learn.microsoft.com/en-us/azure/data-api-builder/concept/security/authenticate-unauthenticated
Apply security best practices in Data API builder	https://learn.microsoft.com/en-us/azure/data-api-builder/concept/security/best-practices
Configure database policies for row-level filtering in DAB	https://learn.microsoft.com/en-us/azure/data-api-builder/concept/security/database-policies
Implement SQL row-level security with DAB session context	https://learn.microsoft.com/en-us/azure/data-api-builder/concept/security/row-level-security
Configure authentication for SQL MCP Server and database	https://learn.microsoft.com/en-us/azure/data-api-builder/mcp/how-to-configure-authentication
Use managed identity for Data API builder to Azure SQL	https://learn.microsoft.com/en-us/azure/data-api-builder/quickstart/authentication-managed-identity
Add Microsoft Entra authentication provider to Data API builder	https://learn.microsoft.com/en-us/azure/data-api-builder/quickstart/authentication-microsoft-entra-provider
Configure on-behalf-of authentication from Data API builder to Azure SQL	https://learn.microsoft.com/en-us/azure/data-api-builder/quickstart/authentication-on-behalf-of
Configure SQL authentication for Data API builder endpoints	https://learn.microsoft.com/en-us/azure/data-api-builder/quickstart/authentication-sql-credentials
Secure Data API builder with Entra ID and DAB policies	https://learn.microsoft.com/en-us/azure/data-api-builder/quickstart/authorization-database-policies
Apply SQL row-level security with Data API builder	https://learn.microsoft.com/en-us/azure/data-api-builder/quickstart/authorization-sql-row-level-security

Configuration

Topic	URL
Use DAB CLI commands to manage configuration and runtime	https://learn.microsoft.com/en-us/azure/data-api-builder/command-line/
Configure DAB telemetry with OpenTelemetry and App Insights	https://learn.microsoft.com/en-us/azure/data-api-builder/command-line/dab-add-telemetry
Create and manage autoentities via dab auto-config	https://learn.microsoft.com/en-us/azure/data-api-builder/command-line/dab-auto-config
Simulate autoentities matches with dab auto-config-simulate	https://learn.microsoft.com/en-us/azure/data-api-builder/command-line/dab-auto-config-simulate
Configure DAB runtime and data source settings	https://learn.microsoft.com/en-us/azure/data-api-builder/command-line/dab-configure
Initialize Data API builder config with DAB CLI	https://learn.microsoft.com/en-us/azure/data-api-builder/command-line/dab-init
Update Data API builder entity configuration via CLI	https://learn.microsoft.com/en-us/azure/data-api-builder/command-line/dab-update
Control Data API builder caching via HTTP headers	https://learn.microsoft.com/en-us/azure/data-api-builder/concept/cache/http-headers
Configure Redis-based level 2 cache in Data API builder	https://learn.microsoft.com/en-us/azure/data-api-builder/concept/cache/level-2
Use @akv function with Azure Key Vault in DAB	https://learn.microsoft.com/en-us/azure/data-api-builder/concept/config/akv-function
Use auto configuration patterns in Data API builder	https://learn.microsoft.com/en-us/azure/data-api-builder/concept/config/auto-config
Use @env function for DAB configuration secrets	https://learn.microsoft.com/en-us/azure/data-api-builder/concept/config/env-function
Manage DAB configuration by environment variants	https://learn.microsoft.com/en-us/azure/data-api-builder/concept/config/environments
Configure multiple data sources for hybrid DAB endpoints	https://learn.microsoft.com/en-us/azure/data-api-builder/concept/config/multi-config
Configure Azure Cosmos DB for NoSQL with DAB	https://learn.microsoft.com/en-us/azure/data-api-builder/concept/database/set-up-cosmosdb
Configure GraphQL entity relationships in DAB	https://learn.microsoft.com/en-us/azure/data-api-builder/concept/graphql/relationships
Expose stored procedures as GraphQL operations in DAB	https://learn.microsoft.com/en-us/azure/data-api-builder/concept/graphql/stored-procedures
Expose database views as GraphQL types in DAB	https://learn.microsoft.com/en-us/azure/data-api-builder/concept/graphql/views
Configure Azure Application Insights for DAB monitoring	https://learn.microsoft.com/en-us/azure/data-api-builder/concept/monitor/application-insights
Configure health checks and /health endpoint in DAB	https://learn.microsoft.com/en-us/azure/data-api-builder/concept/monitor/health-checks
Configure Azure Log Analytics for DAB logging	https://learn.microsoft.com/en-us/azure/data-api-builder/concept/monitor/log-analytics
Configure Data API builder logging levels and filters	https://learn.microsoft.com/en-us/azure/data-api-builder/concept/monitor/log-levels
Set up OpenTelemetry tracing and metrics in DAB	https://learn.microsoft.com/en-us/azure/data-api-builder/concept/monitor/open-telemetry
Configure If-Match header for DAB upserts	https://learn.microsoft.com/en-us/azure/data-api-builder/concept/rest/http-if-match
Understand Location header behavior in DAB REST	https://learn.microsoft.com/en-us/azure/data-api-builder/concept/rest/http-location
Configure OpenAPI and Swagger UI for DAB REST	https://learn.microsoft.com/en-us/azure/data-api-builder/concept/rest/openapi
Expose stored procedures as REST endpoints in DAB	https://learn.microsoft.com/en-us/azure/data-api-builder/concept/rest/stored-procedures
Expose database views as REST endpoints in DAB	https://learn.microsoft.com/en-us/azure/data-api-builder/concept/rest/views
Configure role inheritance in Data API builder	https://learn.microsoft.com/en-us/azure/data-api-builder/concept/security/role-inheritance
Configure full Data API builder JSON schema	https://learn.microsoft.com/en-us/azure/data-api-builder/configuration/
Configure full Data API builder JSON schema	https://learn.microsoft.com/en-us/azure/data-api-builder/configuration/
Configure Data API builder autoentities rules	https://learn.microsoft.com/en-us/azure/data-api-builder/configuration/autoentities
Configure Data API builder data-source section for databases	https://learn.microsoft.com/en-us/azure/data-api-builder/configuration/data-source
Configure Data API builder entities section schema	https://learn.microsoft.com/en-us/azure/data-api-builder/configuration/entities
Configure Data API builder entity definitions	https://learn.microsoft.com/en-us/azure/data-api-builder/configuration/entities
Configure runtime section of Data API builder	https://learn.microsoft.com/en-us/azure/data-api-builder/configuration/runtime
Configure Data API builder runtime behavior	https://learn.microsoft.com/en-us/azure/data-api-builder/configuration/runtime
Configure custom MCP tools for stored procedures in SQL MCP Server	https://learn.microsoft.com/en-us/azure/data-api-builder/mcp/how-to-configure-custom-tools
Run SQL MCP Server in stdio transport mode	https://learn.microsoft.com/en-us/azure/data-api-builder/mcp/stdio-transport

Integrations & Coding Patterns

Topic	URL
Export GraphQL schemas using DAB CLI	https://learn.microsoft.com/en-us/azure/data-api-builder/command-line/dab-export
Query aggregate data via GraphQL in Data API builder	https://learn.microsoft.com/en-us/azure/data-api-builder/concept/graphql/aggregate-data
Execute multiple GraphQL mutations in Data API builder	https://learn.microsoft.com/en-us/azure/data-api-builder/concept/graphql/multiple-mutations
Use after cursors for GraphQL pagination in DAB	https://learn.microsoft.com/en-us/azure/data-api-builder/keywords/after-graphql
Implement cursor pagination with $after in DAB REST	https://learn.microsoft.com/en-us/azure/data-api-builder/keywords/after-rest
Filter GraphQL queries with DAB-specific operators	https://learn.microsoft.com/en-us/azure/data-api-builder/keywords/filter-graphql
Filter REST queries with $filter in DAB	https://learn.microsoft.com/en-us/azure/data-api-builder/keywords/filter-rest
Sort GraphQL results with orderBy in DAB	https://learn.microsoft.com/en-us/azure/data-api-builder/keywords/orderby-graphql
Sort REST results with $orderby in DAB	https://learn.microsoft.com/en-us/azure/data-api-builder/keywords/orderby-rest
Shape GraphQL selections and internal columns in DAB	https://learn.microsoft.com/en-us/azure/data-api-builder/keywords/select-graphql
Use $select to project REST fields in DAB	https://learn.microsoft.com/en-us/azure/data-api-builder/keywords/select-rest
Use SQL MCP Server DML tools from AI agents	https://learn.microsoft.com/en-us/azure/data-api-builder/mcp/data-manipulation-language-tools

Deployment

Topic	URL
Choose deployment options for Data API builder	https://learn.microsoft.com/en-us/azure/data-api-builder/deployment/
Deploy Data API builder in air-gapped environments	https://learn.microsoft.com/en-us/azure/data-api-builder/deployment/air-gapped
Deploy Data API builder to Azure App Service	https://learn.microsoft.com/en-us/azure/data-api-builder/deployment/azure-app-service
Build and run Data API builder from source	https://learn.microsoft.com/en-us/azure/data-api-builder/deployment/run-from-source
Deploy Data API builder with Azure Cosmos DB NoSQL	https://learn.microsoft.com/en-us/azure/data-api-builder/quickstart/basic-nosql
Deploy Data API builder with local SQL via Docker	https://learn.microsoft.com/en-us/azure/data-api-builder/quickstart/basic-sql

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