Azure AI Document Intelligence .NET

Install

Quick Start

Non-Obvious Patterns

• Analyze is async LRO: await client.AnalyzeDocumentAsync(WaitUntil.Completed, "prebuilt-invoice", uri)
• Field access: document.Fields.TryGetValue("VendorName", out DocumentField field)
• Custom model build: BuildDocumentModelOptions(modelId, DocumentBuildMode.Template, blobSource)
• Entra ID requires custom subdomain, not regional endpoint

Best Practices

1. Use DefaultAzureCredential for local development only. In production, use ManagedIdentityCredential — see auth-best-practices.md
2. Reuse client instances — clients are thread-safe
3. Handle long-running operations with WaitUntil.Completed
4. Check field confidence — always verify Confidence property
5. Use appropriate model — prebuilt for common docs, custom for specialized
6. Use custom subdomain — required for Entra ID authentication