// Access data from the current item
{{ $json.name }}

// Access data from a specific node
{{ $node["HTTP Request"].json.response }}

// Access all items from a node
{{ $("HTTP Request").all() }}

// In HTTP Request node settings:
// - Enable "Retry on Fail"
// - Set Max Tries to 3
// - Set Wait Between Tries (ms) to 1000

// For rate limiting, use Batching:
// - Items per Batch: 10
// - Batch Interval (ms): 1000

// Access input data
const items = $input.all();

// Transform each item
return items.map(item => {
  return {
    json: {
      fullName: `${item.json.firstName} ${item.json.lastName}`,
      email: item.json.email.toLowerCase(),
      timestamp: new Date().toISOString()
    }
  };
});

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// Current date
{{ $now }}

// Format date
{{ $now.toFormat('yyyy-MM-dd') }}

// Add 7 days
{{ $now.plus({ days: 7 }) }}

// Parse and format custom date
{{ DateTime.fromISO($json.dateString).toFormat('LLL dd, yyyy') }}

// Use JWT credential with:
// - Key Type: Passphrase (for HMAC) or PEM Key (for RSA/ECDSA)
// - Secret: Your secret key
// - Algorithm: HS256, RS256, ES256, etc.

// The JWT credential automatically generates tokens
// Use it in HTTP Request node > Authentication > JWT

// In Code node, use try-catch:
try {
  const result = $json.data.someField.toUpperCase();
  return [{ json: { result } }];
} catch (error) {
  // Return error information
  return [{
    json: {
      error: error.message,
      originalData: $json
    }
  }];
}

// Or set up Error Workflow in Workflow Settings
// to catch all failures and send notifications

// Use pagination to fetch all pages
// In HTTP Request node > Pagination:

// Type: Generic Pagination
// Request URL: {{ $url }}&page={{ $pageNumber }}
// Complete When: {{ $response.body.hasMore === false }}
// Next Page URL: Automatic

// In AI Agent node:
// 1. Connect a Chat Model (OpenAI, etc.)
// 2. Add tools (Calculator, HTTP Request, etc.)
// 3. Configure memory if needed

// The agent can:
// - Analyze user input
// - Decide which tools to use
// - Execute tools and process results
// - Return final answer

// Access environment variables
{{ $env.MY_API_KEY }}

// Store workflow static data (persists across executions)
const staticData = getWorkflowStaticData('global');
staticData.lastRun = new Date().toISOString();
staticData.counter = (staticData.counter || 0) + 1;

// Retrieve static data
{{ $workflow.staticData.counter }}

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