Automate JSON Data Fetch with Manual Trigger in n8n

Transform your data fetching process with this streamlined n8n workflow that automatically retrieves JSON data from JSONPlaceholder and reshapes it for your specific needs. Perfect for developers and automation engineers who need reliable, manual-triggered data processing workflows.

What this workflow does

This manual-trigger workflow simplifies JSON data extraction and transformation through three precise steps:

• Manual execution: Starts when you manually trigger the workflow in your n8n interface
• HTTP data fetch: Sends an HTTP request to JSONPlaceholder to retrieve sample post data in JSON format
• Data reshaping: Extracts the post title and body fields while adding a custom "processed: true" flag to track workflow completion

Use cases

This workflow template serves multiple automation scenarios:

• API testing and development: Test JSON data retrieval patterns before implementing in production systems
• Data migration projects: Extract and reshape data from external APIs for database imports
• Content management automation: Fetch blog posts or articles from APIs and prepare them for content management systems
• Data quality testing: Validate API responses and ensure consistent data structure across different endpoints
• Learning and prototyping: Perfect starting point for n8n users learning HTTP request automation and JSON manipulation

Technical details

Built with essential n8n automation nodes:

• Manual Trigger: Provides on-demand workflow execution control
• HTTP Request: Handles API communication with JSONPlaceholder endpoint
• Function: Processes and reshapes JSON response data

Quick setup

Customize this workflow effortlessly by updating the HTTP Request URL to connect with your preferred API endpoint. For APIs requiring authentication, simply add the necessary HTTP credentials or headers in the HTTP Request node configuration. This flexible foundation adapts to various JSON data sources while maintaining the same efficient processing structure.