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REST APIs

RESTful API integrations with support for GET, POST, PUT, DELETE operations and advanced authentication.

Overview​

REST API nodes provide comprehensive tools for integrating with RESTful web services. These nodes handle HTTP requests, response processing, authentication, and error management, making it easy to connect your workflows with external APIs and services.

Supported HTTP Methods​

GET Requests​

  • Retrieve data from APIs
  • Query parameters and headers
  • Pagination support
  • Response caching

POST Requests​

  • Create new resources
  • Send data in request body
  • File upload support
  • Form data handling

PUT Requests​

  • Update existing resources
  • Full resource replacement
  • Idempotent operations
  • Conflict handling

DELETE Requests​

  • Remove resources
  • Soft and hard deletes
  • Batch operations
  • Confirmation workflows

PATCH Requests​

  • Partial resource updates
  • JSON Patch format
  • Merge operations
  • Field-level updates

Authentication Methods​

API Key Authentication​

GET /api/data
Authorization: Bearer your-api-key

OAuth 2.0​

  • Authorization Code flow
  • Client Credentials flow
  • Refresh token handling
  • Scope management

Basic Authentication​

GET /api/data
Authorization: Basic base64(username:password)

Custom Headers​

  • Custom authentication schemes
  • Multiple header combinations
  • Dynamic header generation
  • Header templates

Request Configuration​

Headers​

  • Content-Type specification
  • Accept headers for response format
  • Custom business headers
  • Conditional headers

Query Parameters​

  • URL parameter encoding
  • Array parameter handling
  • Nested object parameters
  • Dynamic parameter generation

Request Body​

  • JSON payload formatting
  • Form data encoding
  • File upload handling
  • Binary data support

Response Handling​

Status Code Processing​

  • Success handling (200-299)
  • Redirection logic (300-399)
  • Client error handling (400-499)
  • Server error handling (500-599)

Data Extraction​

  • JSON path expressions
  • XML parsing
  • Header extraction
  • Cookie handling

Error Management​

  • Retry mechanisms
  • Exponential backoff
  • Circuit breaker patterns
  • Fallback responses

Common Integration Patterns​

Pagination​

// Example: GitHub API pagination
{
  "page": 1,
  "per_page": 100,
  "has_next": true
}

Rate Limiting​

  • Request throttling
  • Rate limit headers
  • Quota management
  • Backoff strategies

Webhooks​

  • Webhook signature validation
  • Event processing
  • Retry logic
  • Dead letter queues

Configuration Examples​

Basic GET Request​

method: GET
url: https://api.example.com/users
headers:
  Authorization: Bearer {{api_key}}
  Content-Type: application/json

POST with JSON Body​

method: POST
url: https://api.example.com/users
headers:
  Content-Type: application/json
body:
  name: "{{user_name}}"
  email: "{{user_email}}"

File Upload​

method: POST
url: https://api.example.com/upload
headers:
  Authorization: Bearer {{api_key}}
body_type: form-data
files:
  document: "{{file_path}}"

Best Practices​

Security​

  • Use HTTPS for all requests
  • Secure API key storage
  • Input validation and sanitization
  • Rate limiting implementation

Performance​

  • Connection pooling
  • Request caching
  • Compression support
  • Timeout configuration

Reliability​

  • Implement retry logic
  • Handle network failures gracefully
  • Monitor API health
  • Log requests and responses

Testing​

  • Mock API responses for testing
  • Validate request formats
  • Test error scenarios
  • Performance testing

Troubleshooting​

Common Issues​

  • SSL Certificate Errors: Verify certificate validity
  • Timeout Issues: Adjust timeout settings
  • Rate Limiting: Implement proper backoff
  • Authentication Failures: Check credentials and scopes

Debugging Tools​

  • Request/response logging
  • Network trace analysis
  • API testing tools
  • Mock server setup

Examples​

Customer Data Retrieval​

# Get customer information
GET https://api.crm.com/customers/{{customer_id}}
Headers:
  Authorization: Bearer {{access_token}}
  Accept: application/json

Order Creation​

# Create new order
POST https://api.ecommerce.com/orders
Headers:
  Content-Type: application/json
  Authorization: API-Key {{api_key}}
Body:
  customer_id: "{{customer_id}}"
  items: [
    {
      product_id: "{{product_id}}",
      quantity: 2
    }
  ]

Need Help?​

  • Check our API integration examples
  • Review authentication setup guide
  • Join our community forum
  • Contact support for enterprise integrations