azure-storage-blob-ts

原文涵盖的主题

• @azure/storage-blob (TypeScript/JavaScript)
• Installation
• Environment Variables
• Authentication
• Microsoft Entra Token Credential (Recommended)
• Connection String
• StorageSharedKeyCredential (Node.js only)
• SAS Token

SDK for Azure Blob Storage operations — upload, download, list, and manage blobs and containers. Current Version: 12.x Node.js: >= 18.0.0 Most common type for text and binary files. Optimized for append operations (logs, audit trails). Fixed-size blobs for random read/write (VHDs). 1. Use DefaultAzureCredential for local development; use ManagedIdentityCredential or WorkloadIdentityCredential for production 2. Use streaming for large files — uploadStream/downloadToFile for files > 256MB 3. Set appropriate content types — Use setHTTPHeaders for correct MIME types 4. Use SAS tokens for client access — Generate short-lived tokens for browser uploads 5. Handle errors gracefully — Check RestError.statusCode for specific handling 6. Use IfNotExists methods — For idempotent container/blob creation 7. Close clients — Not required but good practice in long-running apps | Feature | Node.js | Browser | |---------|---------|---------| | StorageSharedKeyCredential | ✅ | ❌ | | uploadFile() | ✅ | ❌ | | uploadStream() | ✅ | ❌ | | downloadToFile() | ✅ | ❌ | | downloadToBuffer() | ✅ | ❌ | | uploadData() | ✅ | ✅ | | SAS generation | ✅ | ❌ | | DefaultAzureCredential | ✅ | ❌ | | Anonymous/SAS access |

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