> For clean Markdown of any page, append .md to the page URL.
> For a complete documentation index, see https://docs.governanceaicore.com/code-examples/node-js/llms.txt.
> For AI client integration (Claude Code, Cursor, etc.), connect to the MCP server at https://docs.governanceaicore.com/_mcp/server.

# Node.js Examples

> Node.js/JavaScript code examples for GovernanceAI API

# Node.js Examples

Integrate GovernanceAI with Node.js applications.

## Installation

```bash
npm install axios dotenv
```

## Basic Setup

```javascript
require('dotenv').config();
const axios = require('axios');

const API_KEY = process.env.GOVERNANCEAI_API_KEY;
const ORG_ID = process.env.GOVERNANCEAI_ORG_ID;
const BASE_URL = 'https://api.governanceai.com/v1';

const client = axios.create({
  baseURL: BASE_URL,
  headers: {
    'Authorization': `Bearer ${API_KEY}`,
    'Content-Type': 'application/json'
  }
});
```

## Evaluate Guardrails

```javascript
async function evaluateGuardrails(userMessage, userId) {
  try {
    const response = await client.post('/guardrails/evaluate', {
      messages: [
        {
          role: 'user',
          content: userMessage
        }
      ],
      context: {
        org_id: ORG_ID,
        user_id: userId
      }
    });

    return {
      decision: response.data.decision,
      riskScore: response.data.risk_score,
      violations: response.data.policy_violations
    };
  } catch (error) {
    console.error('Guardrail evaluation failed:', error.message);
    throw error;
  }
}

// Usage
const result = await evaluateGuardrails(
  "What is the capital of France?",
  "user_123"
);
console.log(`Decision: ${result.decision}`);
console.log(`Risk Score: ${result.riskScore}`);
```

## Create Policy

```javascript
async function createPolicy(policyName, guardrailIds) {
  const response = await client.post('/policies', {
    name: policyName,
    guardrail_ids: guardrailIds,
    scope: 'organization',
    enforcement: {
      mode: 'blocking',
      log_violations: true
    }
  });

  return response.data;
}

// Usage
const policy = await createPolicy(
  'Production Safety',
  ['guardrail_pii', 'guardrail_toxic']
);
console.log(`Policy created: ${policy.policy_id}`);
```

## Run Scan with Async/Await

```javascript
async function runScan(scanType, repositories) {
  // Start scan
  const scanResponse = await client.post('/scans', {
    scan_type: scanType,
    repositories: repositories
  });

  const scanId = scanResponse.data.scan_id;
  console.log(`Scan started: ${scanId}`);

  // Poll for completion
  let completed = false;
  let results = null;

  while (!completed) {
    const statusResponse = await client.get(`/scans/${scanId}`);
    const scan = statusResponse.data;

    if (scan.status === 'completed') {
      completed = true;
      results = scan;
    } else {
      // Wait 5 seconds before polling again
      await new Promise(resolve => setTimeout(resolve, 5000));
    }
  }

  return results;
}

// Usage
const scanResults = await runScan('code_scan', ['repo_1', 'repo_2']);
console.log(`Found ${scanResults.models_found} models`);
```

## Error Handling

```javascript
async function makeRequest(method, endpoint, data = null) {
  try {
    let response;

    if (method === 'GET') {
      response = await client.get(endpoint);
    } else if (method === 'POST') {
      response = await client.post(endpoint, data);
    }

    return response.data;
  } catch (error) {
    if (error.response?.status === 401) {
      throw new Error('Invalid API key');
    } else if (error.response?.status === 403) {
      throw new Error('Insufficient permissions');
    } else if (error.response?.status >= 500) {
      throw new Error('Server error - try again later');
    } else if (error.message === 'Network Error') {
      throw new Error('Network error - check your connection');
    }

    throw error;
  }
}
```

## TypeScript Support

```typescript
interface GuardrailEvaluationResult {
  decision: 'allow' | 'block' | 'transform';
  riskScore: number;
  violations: any[];
}

async function evaluateGuardrails(
  userMessage: string,
  userId: string
): Promise<GuardrailEvaluationResult> {
  const response = await client.post('/guardrails/evaluate', {
    messages: [{ role: 'user', content: userMessage }],
    context: { org_id: ORG_ID, user_id: userId }
  });

  return {
    decision: response.data.decision,
    riskScore: response.data.risk_score,
    violations: response.data.policy_violations
  };
}
```

## Next Steps

* **[Python Examples](/code-examples/python)** - Python code
* **[API Patterns](/code-examples/api-patterns)** - Common patterns
* **[Quick Start](../05-quick-start.mdx)** - First API call

> Node.js/JavaScript code examples for GovernanceAI API