Postman Newman REST API

A comprehensive API testing suite for the Trello REST API, demonstrating automated testing for CRUD operations, dynamic variable handling, and response validation.

• About
• Features
• Test Coverage
• Prerequisites
• Installation
• Configuration
• Usage
• Running with Newman
• Test Results
• Project Structure
• Security
• Author

This collection provides end-to-end API testing for Trello's REST API, covering the complete lifecycle of board management with validation at each step.

Testing Flow:

1. Get all existing boards
2. Create a new board (dynamic naming)
3. Retrieve the created board
4. Create TODO and DONE lists
5. Create a card in TODO
6. Move card to DONE
7. Delete the board
8. Verify deletion (404)

• ✅ Complete CRUD Operations - Full lifecycle testing
• ✅ Dynamic Variables - Automatic ID passing between requests
• ✅ Smart Naming - Incremental board names (TestBoard, TestBoard_1...)
• ✅ 27 Test Assertions - Comprehensive validation
• ✅ Newman Compatible - Ready for CLI execution
• ✅ Security First - No hardcoded credentials

Total Tests: 27 automated assertions

• Postman (Desktop or Web)
• Trello Account
• Trello API Key & Token

git clone https://github.com/tyraelw/trello-api-testing.git
cd trello-api-testing

Option A: Postman Desktop

1. Open Postman
2. Click "Import"
3. Select trello-api-collection.json

Option B: Postman Web

1. Go to Postman Web
2. Click "Import"
3. Drag and drop trello-api-collection.json

1. Go to https://trello.com/app-key
2. Copy your API Key
3. Click "Token" link and generate a Token
4. Save both securely

Method A: Collection Variables (Recommended)

1. Right-click collection → Edit
2. Go to "Variables" tab
3. Update Current Value column only:

⚠️ Important: Only edit "Current Value" - not exported with collection

Method B: Environment Variables

1. Create Environment: "Trello - Local"
2. Add variables:

{
 "trellokey": "your-key",
 "trellotoken": "your-token",
 "baseUrl": "https://api.trello.com"
}

3. Select environment from dropdown

Run Entire Collection:

1. Click collection name
2. Click "Run" button
3. Select all requests
4. Click "Run Trello API"

Run Individual Request:

1. Open request
2. Click "Send"
3. Check "Test Results" tab

Expected Results:
All tests pass with 200 OK (except "Get Deleted Board" expects 404)

Example output:

✓ Status code is 200
✓ Board created successfully
✓ Board has a name
✓ Board has a valid URL
✓ Board is open (not closed)

Newman runs Postman collections from command line.

npm install -g newman

newman run trello-api-collection.json \
 --env-var "trellokey=YOUR_KEY" \
 --env-var "trellotoken=YOUR_TOKEN" \
 --reporters cli,html

newman run trello-api-collection.json \
 --env-var "trellokey=YOUR_KEY" \
 --env-var "trellotoken=YOUR_TOKEN" \
 --reporters html \
 --reporter-html-export testResults.html

npm install -g newman-reporter-htmlextra
newman run trello-api-collection.json \
 --env-var "trellokey=YOUR_KEY" \
 --env-var "trellotoken=YOUR_TOKEN" \
 --reporters htmlextra \
 --reporter-htmlextra-export report.html

Example successful run:

→ Create Board
 ✓ Board created successfully
 ✓ Board has a name
 ✓ Board has a valid URL
 ✓ Board is open
 
→ Create TODO List
 ✓ TODO list created
 ✓ List name is "TODO"
 ✓ List belongs to board
 
... (27 total assertions)
┌─────────────────────┬──────────┬────────┐
│ │ executed │ failed │
├─────────────────────┼──────────┼────────┤
│ iterations │ 1 │ 0 │
│ requests │ 10 │ 0 │
│ test-scripts │ 20 │ 0 │
│ assertions │ 27 │ 0 │
└─────────────────────┴──────────┴────────┘

trello-api-testing/
├── trello-api-collection.json # Main collection
├── trello-environment-example.json # Template
├── .gitignore # Protects credentials
└── README.md # Documentation

• ✅ Never commit credentials to git
• ✅ Use environment variables
• ✅ Keep "Initial Value" empty in collection
• ✅ Use .gitignore for environment files
• ✅ Rotate API keys regularly

Isrrael Andres Toro Alvarez

• GitHub: @tyraelw
• LinkedIn: Isrrael Toro Alvarez
• Email: tyrael78w@gmail.com

For questions or feedback: tyrael78w@gmail.com

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