newman

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# Newman - Postman CLI Runner

Newman is the command-line Collection Runner for Postman. Run and test Postman collections directly from the command line with powerful reporting, environment management, and CI/CD integration.

## Quick Start

### Installation

```bash
# Global install (recommended)
npm install -g newman

# Project-specific
npm install --save-dev newman

# Verify
newman --version
```

### Basic Execution

```bash
# Run collection
newman run collection.json

# With environment
newman run collection.json -e environment.json

# With globals
newman run collection.json -g globals.json

# Combined
newman run collection.json -e env.json -g globals.json -d data.csv
```

## Core Workflows

### 1. Export from Postman Desktop

**In Postman:**
1. Collections → Click "..." → Export
2. Choose "Collection v2.1" (recommended)
3. Save as `collection.json`

**Environment:**
1. Environments → Click "..." → Export
2. Save as `environment.json`

### 2. Run Tests

```bash
# Basic run
newman run collection.json

# With detailed output
newman run collection.json --verbose

# Fail on errors
newman run collection.json --bail

# Custom timeout (30s)
newman run collection.json --timeout-request 30000
```

### 3. Data-Driven Testing

**CSV format:**
```csv
username,password
user1,pass1
user2,pass2
```

**Run:**
```bash
newman run collection.json -d test_data.csv --iteration-count 2
```

### 4. Reporters

```bash
# CLI only (default)
newman run collection.json

# HTML report
newman run collection.json --reporters cli,html --reporter-html-export report.html

# JSON export
newman run collection.json --reporters cli,json --reporter-json-export results.json

# JUnit (for CI)
newman run collection.json --reporters cli,junit --reporter-junit-export junit.xml

# Multiple reporters
newman run collection.json --reporters cli,html,json,junit \
  --reporter-html-export ./reports/newman.html \
  --reporter-json-export ./reports/newman.json \
  --reporter-junit-export ./reports/newman.xml
```

### 5. Security Best Practices

**❌ NEVER hardcode secrets in collections!**

Use environment variables:

```bash
# Export sensitive vars
export API_KEY="your-secret-key"
export DB_PASSWORD="your-db-pass"

# Newman auto-loads from env
newman run collection.json -e environment.json

# Or pass directly
newman run collection.json --env-var "API_KEY=secret" --env-var "DB_PASSWORD=pass"
```

**In Postman collection tests:**

From javimosch/open-claw-skills, MIT.

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