Workflow sequencing in Postman - Framework Patterns

Framework Mode - Workflow sequencing

Folder Structure

Postman-Workflow-Sequencing-Project/
├── collections/
│   ├── UserManagement.postman_collection.json
│   ├── OrderProcessing.postman_collection.json
│   └── InventoryManagement.postman_collection.json
├── environments/
│   ├── Development.postman_environment.json
│   ├── Staging.postman_environment.json
│   └── Production.postman_environment.json
├── scripts/
│   ├── pre-request-scripts/
│   │   └── authSetup.js
│   └── test-scripts/
│       └── validateResponse.js
├── data/
│   └── userData.json
├── reports/
│   └── test-run-report.html
├── postman_collection_runner.json
└── README.md

Test Framework Layers

• Collections Layer: Contains Postman collections representing API workflows. Each collection groups related API requests in logical order to simulate real user or system workflows.
• Environment Layer: Holds environment files with variables like base URLs, tokens, and credentials to run tests in different setups (Dev, Staging, Prod).
• Scripts Layer: Includes pre-request scripts to prepare data or authentication before requests, and test scripts to validate responses after requests.
• Data Layer: Contains external JSON files for data-driven testing, feeding dynamic data into requests during workflow execution.
• Reports Layer: Stores test run reports generated by Newman or other runners for analysis and sharing.

Configuration Patterns

• Environment Variables: Use environment files to switch between different API endpoints and credentials without changing collections.
• Global Variables: Use sparingly for values shared across collections, like tokens or timestamps.
• Data Files: Use JSON or CSV files to provide input data for workflow steps, enabling data-driven testing.
• Collection Runner & Newman: Configure workflow execution order and environment via collection runner or Newman CLI with command-line options.
• Authentication Setup: Use pre-request scripts to dynamically generate or refresh tokens before requests.

Test Reporting and CI/CD Integration

• Newman Reports: Use Newman CLI to run collections and generate HTML, JSON, or JUnit reports for test results.
• CI/CD Integration: Integrate Newman runs into pipelines (GitHub Actions, Jenkins, GitLab CI) to automate workflow testing on code changes.
• Slack/Email Notifications: Configure pipeline steps to send test results notifications to teams.
• Version Control: Store collections, environments, and scripts in Git for versioning and collaboration.

Best Practices

• Modular Collections: Break workflows into smaller collections for reusability and easier maintenance.
• Use Variables Wisely: Use environment and collection variables to avoid hardcoding and ease environment switching.
• Clear Workflow Order: Arrange requests in collections to reflect the real sequence of API calls in the workflow.
• Validate at Each Step: Add test scripts after each request to verify expected responses before moving to next step.
• Automate with Newman: Use Newman for automated, repeatable workflow testing outside Postman UI.

Self Check

Where in this folder structure would you add a new pre-request script to handle token refresh before API calls?

Key Result

Organize Postman workflows into modular collections with environment configs and scripts for clear, automated API sequence testing.