rpa-tracker 0.0.18

Transaction tracking, deduplication, retry handling and audit trail for Python-based RPA and backend automation.

rpa-tracker

rpa-tracker is a lightweight Python library for transaction tracking, retry control, deduplication and auditability in RPA and backend automation workflows.

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Install

pip install rpa-tracker

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Why rpa-tracker?

It is designed for long-running, multi-platform processes where:

• a single transaction touches multiple systems
• retries must be controlled and observable
• business errors must stop the flow
• system errors may be retried
• full traceability is required for operations and reporting

This library focuses on governance and execution control, not orchestration engines or schedulers.

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Key Concepts

Transaction

A logical unit of work identified by a UUID.

Platform

A system involved in the transaction flow, defined in a central catalog with execution order and retry policy.

Stage

The execution of a transaction in a specific platform.

Execution Result

Derived from an error code:

• 0 → success
• < 0 → system error (retryable)
• > 0 → business error (non-retryable)

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Core Features

• Transaction lifecycle tracking
• Platform-based execution flow
• Configurable retry policies per platform
• Unlimited or limited retries
• Business vs system error handling
• Deduplication strategies per process
• Full audit trail (events, attempts, timestamps)
• SQLAlchemy-based persistence
• Reporting-ready data model
• Designed for batch / hourly RPA execution

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Architecture Overview

Process / Job
   |
   |-- DeduplicationStrategy (process-specific)
   |-- PlatformRegistry (catalog)
   |-- RetryPolicy (per platform)
   |
   |-- SqlTransactionTracker
           |
           |-- TxProcess   (transaction)
           |-- TxStage     (platform execution)
           |-- TxEvent     (attempts / audit)

The tracker does not decide business rules.
It only applies the configuration provided by the process.

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Minimal Example

from rpa_tracker.catalog.platform import PlatformDefinition
from rpa_tracker.catalog.registry import PlatformRegistry
from rpa_tracker.retry.policy import RetryPolicy
from rpa_tracker.tracking.sql_tracker import SqlTransactionTracker

PlatformRegistry.register(
    PlatformDefinition(code="A", retry_policy=RetryPolicy(max_attempts=1), order=1)
)

tracker = SqlTransactionTracker(session)
uuid, is_new = tracker.start_or_resume("MY_PROCESS", payload)

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Retry Behavior

• Business errors (error_code > 0)
  → transaction is REJECTED and stops

• System errors (error_code < 0)
  → stage is TERMINATED and retried based on policy

• Retry limits are platform-specific

• Unlimited retries are supported

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Transaction Management

Important: rpa-tracker does NOT commit automatically. You control when to commit.

Pattern 1: Commit per transaction

for case in cases:
    tracker.finish_stage(uuid, system, state)
    session.commit()  # Commit each

Pattern 2: Commit per batch (recommended)

for i, case in enumerate(cases):
    tracker.finish_stage(uuid, system, state)
    
    if i % 100 == 0:
        session.commit()  # Commit every 100

session.commit()  # Final commit

Pattern 3: Single transaction

try:
    for case in cases:
        tracker.finish_stage(uuid, system, state)
    
    session.commit()  # All or nothing
except Exception:
    session.rollback()

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Reporting

from rpa_tracker.reporting.transaction_report_repository import (
    TransactionReportRepository
)

repo = TransactionReportRepository(session)
repo.summary_by_state(start, end)

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Design Principles

• Explicit configuration over magic
• Process-driven policies
• No orchestration assumptions
• SQL-first, audit-friendly
• Conservative, production-oriented design

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When to Use

• Multi-platform RPA processes
• Hourly or batch execution models
• Strong audit and traceability requirements
• Controlled retries and failure handling

When NOT to Use

• Real-time streaming systems
• Stateless microservices
• One-step scripts

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License

GNU General Public License v3 (GPLv3)

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Author

Jonathan Bolo
Senior Software & RPA Architect

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