CMD - BBU Low Level Design

BBU Service API:

Features:

• Fetch all BBU template types
• Download all BBU templates
• Upload BBU template file
  • Validate input file against respective BBU template format and structure
  • Invoke respective Ingest API and process data in batches
  • Insert / Update BBU Audit History for each job run
  • Insert / Update BBU Error History for each error / failure during the process
• Fetch BBU Audit History
• Download BBU Error details by specific BBU Job run from the BBU Audit history

INGEST APIs:

Features:

• Update BBU data
  • Validate data
  • Update data in batches
  • Log & Persist errors / failures
    • Invalid Data
    • System Failure
  • Async API call to update in READ DB
  • Publish persisted data in batches to EMP

BBU Consumer & Publisher API (On-Prem):

Features:

• Consume data from EMP and Publish to MQ for downstream systems

Sequence Diagrams:

Bulk Update - All templates - Generic/Common Flow

Ingest Customer - Bulk update customer segments

Ingest Customer - Bulk update customer relationships