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Business Systems House 2026

Exchange Web Services (EWS) API Integration & Token Management

Exchange Web Services (EWS) API Integration & Token Management
Exchange Web Services (EWS) Microsoft Graph API OAuth 2.0 Exchange Online PowerShell

Exchange Web Services (EWS) API Integration & Token Management

Designed and deployed secure API integration pipelines using EWS and Microsoft Graph API for custom corporate application authentication.

Key Features & Implementation

  • OAuth 2.0 Token Scoping: Standardized application permission scoping and certificate-backed client secret management for API access.
  • EWS & Graph API Pipelines: Built automated scripts to extract mailbox metadata, process transactional notifications, and sync calendar events.
  • Throttling & Limit Handling: Configured retry logic and backoff algorithms to prevent M365 API request throttling during high-volume sync operations.
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