n8n Form Trigger with Conditional Logic

This n8n workflow demonstrates how to use an n8n Form Trigger to initiate a workflow and then apply conditional logic to process the submitted data. It's a foundational example for building interactive forms that trigger automated actions based on user input.

Description

This workflow simplifies the process of receiving data via a custom n8n form and then routing that data through different paths based on specific conditions. It's ideal for scenarios where you need to collect information and perform varied actions depending on the values submitted in the form.

What it does

1. Listens for Form Submissions: The workflow starts when a user submits data through a custom n8n form.
2. Processes Form Data: The submitted data is then passed to an "Edit Fields (Set)" node, which can be used to modify or add fields to the incoming data if necessary.
3. Applies Conditional Logic (If): An "If" node evaluates a condition based on the data received. Items that meet the condition are routed through the true branch, while others go through the false branch.
4. Applies Conditional Logic (Switch): A "Switch" node further categorizes the data based on multiple possible values of a field, directing items to different outputs depending on which case they match.
5. Performs HTTP Request: An "HTTP Request" node is included, typically used to send the processed data to an external API or service.

Prerequisites/Requirements

• n8n Instance: An active n8n instance where you can import and run this workflow.
• Basic understanding of n8n Forms: Familiarity with creating and using n8n forms.
• HTTP Endpoint (Optional): If you intend to use the "HTTP Request" node, you will need an external API endpoint to send data to.

Setup/Usage

1. Import the Workflow:
   • Copy the provided JSON code.
   • In your n8n instance, go to "Workflows" and click "New".
   • Click the three dots next to "New workflow" and select "Import from JSON".
   • Paste the JSON code and click "Import".
2. Configure the n8n Form Trigger:
   • Open the "On form submission" node.
   • Design your form by adding the necessary fields. The workflow will process the data submitted through this form.
   • Activate the workflow to make the form publicly accessible.
3. Configure the Edit Fields (Set) Node:
   • Adjust the "Edit Fields" node to transform or add any data fields as required for your specific use case.
4. Configure the If Node:
   • Open the "If" node and define the condition(s) that will determine whether items follow the true or false path.
5. Configure the Switch Node:
   • Open the "Switch" node and define the expression and cases to route data based on multiple possible values.
6. Configure the HTTP Request Node:
   • If you plan to send data to an external service, configure the "HTTP Request" node with the appropriate URL, method (e.g., POST), headers, and body content.
7. Activate the Workflow: Once configured, activate the workflow to start processing form submissions.

This workflow provides a flexible foundation for building sophisticated form-driven automations with conditional processing.