Step-by-Step Process & Entities

Entities Involved

1. ApiService

• The core backend API
• Location: Source/EGU.PartnerPortal.ApiService
• Calls IntegrationServiceAPI for external system integrations
• Validates tokens when IntegrationServiceAPI calls it

2. ServiceTokenHandler (Middleware)

• HTTP message handler that intercepts outgoing requests
• Location: Source/EGU.PartnerPortal.ApiService/Middleware/Handler/ServiceTokenHandler.cs
• Automatically gets tokens from Azure AD
• Attaches tokens to requests going to IntegrationServiceAPI

3. Microsoft Entra ID (Azure AD Tenant)

• Microsoft's cloud identity service
• Tenant ID: 6073ce8b-73f3-4df4-9b80-5e40cdc6965f
• Issues tokens for service-to-service communication
• Validates client credentials (client ID + client secret)

4. IntegrationServiceAPI

• External system integration API
• Location: Source/EGU.PartnerPortal.IntegrationServiceAPI
• Calls ApiService to create/update work orders and instructions
• Validates tokens when ApiService calls it