Webhook processing
Receive JSON requests, inspect incoming fields and return a controlled response to the calling system.
Workflow Engine
n8n Automation
Modular workflows combining webhooks, JSON validation, Code nodes, conditional routing and integrations with connected services.
n8n
Webhooks
Code Node
JSON
Conditional Routing
Capabilities
Developer-oriented workflow design
n8n combines visual orchestration with code and direct access to structured data, making each transformation and routing decision visible.
Code-based transformation
Use JavaScript inside Code nodes to validate, normalise and enrich data before later workflow steps use it.
Routing and integration
Select a route from the normalised data and connect the result to storage, notifications, APIs or other business services.
Workflow Collection
n8n examples and patterns
The lead-routing starter is included as an importable workflow. Additional cards describe patterns that can be added after credentials and connected services are configured.
01
Starter included
Lead Intake & Smart Routing
Receives a lead through a webhook, validates the JSON payload, normalises the values and selects a processing queue.
Webhook
Code Node
JSON
Routing
Receive
→
Validate
→
Route
02
Workflow pattern
API Orchestration
A reusable pattern for combining multiple HTTP requests, transforming each response and producing one normalised result.
HTTP Request
API
Merge
Code
Request
→
Transform
→
Merge
03
Workflow pattern
Error & Recovery Branch
A workflow pattern for separating failed items, recording diagnostic information and notifying the responsible queue without losing context.
Error Route
Logging
Notification
Error
→
Log
→
Notify
Featured Workflow
Lead Intake & Smart Routing
The starter workflow deliberately stops at a JSON response. Storage and email nodes should only be added after the relevant n8n credentials are configured.
Importable Starter
Validate, normalise and route webhook data
The workflow receives an enquiry, checks the required fields, converts values to a consistent form and selects a queue based on the requested service.
Trigger
Webhook request
→
Code
Validate and normalise
→
Logic
Select processing route
→
Response
Return structured result
Interactive Demonstration
Test the routing rules
The same validation and routing behaviour is reproduced locally, so the workflow can be inspected without exposing an n8n webhook publicly.
Incoming webhook JSON
Change the service or enter an invalid email to see how the validator responds.
Webhook payload received
JSON parsed
Required fields validated
Values normalised
Route selected
Routing result
Successful input produces a normalised object and the name of the selected processing route.
{
"status": "Run the validator to inspect the result"
}
Workflow File
Importable n8n starter
Import the JSON into n8n, inspect every node and test both valid and invalid webhook requests before marking the workflow as completed.
n8n-lead-routing-starter.json
Webhook → JavaScript validation and routing → Respond to Webhook. The file contains no connected account credentials.
Workflow canvas
Add a screenshot after importing and successfully running the starter workflow.
assets/automations/n8n-lead-routing-workflow.pngExecution evidence
Capture one valid route and one rejected request after testing the actual n8n workflow.
assets/automations/n8n-lead-routing-execution.png